Integrators’
Reference Manual
For
ViewStation® EX,
ViewStation® FX,
and VS4000
March 2003 Edition
3725-20771-001
Revision A
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Contents
Chapter 1 - About this Manual ................................................ 1
Conventions Used in this Manual ....................................................................................2
Glossary................................................................................................................................2
Chapter 2 - Technical Information.......................................... 11
System Descriptions .........................................................................................................12
Technical Specifications............................................................................................12
RS-232 Interface..........................................................................................................20
Quad BRI Network Interface Module.....................................................................22
Indicators on the Quad BRI Network Interface Module ..............................22
Quad BRI Cabling...............................................................................................23
NT-1 Information................................................................................................24
ISDN Switches.....................................................................................................25
Automatic Quad BRI Software Update...........................................................25
PRI Network Interface Module for ViewStation FX and VS4000 .......................26
Indicators on the PRI Network Interface Module .........................................27
PRI Cabling..........................................................................................................29
Channel Selection ...............................................................................................30
PRI E1 Channel Information.............................................................................30
Dedicated Full PRI T1 or E1 Line .....................................................................30
V.35/RS-449/RS-530 Network Interface Module.................................................31
Indicators on the V.35/RS-449/RS-530 Network Interface Module...........31
V.35/RS-449/RS-530 Cabling ...........................................................................32
Serial Interface Control Signals ........................................................................38
State Machine ......................................................................................................39
Crypto Resync.....................................................................................................44
Other Elements of a Typical Deployment .....................................................................45
Chapter 3 - Before You Deploy.............................................. 47
Predeployment Overview................................................................................................48
Video Network Security...................................................................................................49
Best Practices .....................................................................................................................50
Predeployment Planning .................................................................................................51
LAN/WAN Considerations.....................................................................................52
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Capacity Planning ..................................................................................................... 53
Call Processing Considerations............................................................................... 54
Gatekeeper Identifier......................................................................................... 55
Default Gatekeeper ............................................................................................ 55
Call Routing Mode............................................................................................. 55
Developing the Dial Plan................................................................................................. 55
Services ................................................................................................................ 57
Administration, Policies, and Routing............................................................ 58
Network Topology............................................................................................. 59
Neighbor gatekeepers........................................................................................ 59
Addressing ................................................................................................................. 60
Zones and Zone Prefixes................................................................................... 60
Entity Addressing .............................................................................................. 61
Rules for Assigning Prefixes and Numeric Aliases ...................................... 62
Service Plans ....................................................................................................... 62
System Services .................................................................................................. 63
ISDN Requirements.......................................................................................................... 63
ISDN PRI..................................................................................................................... 63
Determining Usage ............................................................................................ 65
PBX Network Configuration ............................................................................ 65
ISDN BRI..................................................................................................................... 65
DCP (Digital Communication Port) On Lucent Definity ECS............................ 68
Network Configuration..................................................................................... 68
Installation........................................................................................................... 68
Configuration...................................................................................................... 69
Site Considerations........................................................................................................... 72
Predeployment Worksheet.............................................................................................. 74
Chapter 4 - Installing Videoconferencing Systems.................. 77
The Deployment Process................................................................................................. 78
Installation Procedures .................................................................................................... 79
Installing Network Interface Modules ................................................................... 79
Quad BRI Network Interface Module .................................................................... 79
NT-1 Device ........................................................................................................ 80
Cables Used with the Quad BRI Network Interface Module ...................... 80
Installation........................................................................................................... 80
Installing a PRI Network Interface Module .......................................................... 81
External Power Supply...................................................................................... 81
Channel Service Unit ......................................................................................... 82
ADTRAN Atlas 800 Plus E1 Module............................................................... 82
If You Are Connecting to a PBX....................................................................... 83
Cables Used with the PRI Network Interface Module ................................. 83
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Contents
Installation ...........................................................................................................84
Installing a V.35/RS-449/RS-530 Network Interface Module ............................85
Cables Used with the V.35/RS-449/RS-530 Network Interface Module ...85
Installation ...........................................................................................................86
Network Configuration....................................................................................................88
On a PRI T1 Network: Configuring the CSU.........................................................88
Firewall and NAT Issues ..........................................................................................89
Configuring the System to Operate Behind a Firewall.................................89
Configuring the System to Operate Behind a NAT.......................................90
Connecting the System to a PC.......................................................................................91
PC Requirements ................................................................................................91
Connecting the PC to the LAN Through the ViewStation EX,
ViewStation FX, or VS4000.............................................................................92
Connecting the System to a PC off the LAN ..................................................94
Placing Test Calls ..............................................................................................................96
Chapter 5 - Supporting Advanced Users................................ 97
Multiple-Monitor Mode...................................................................................................98
RS-232 Interface...............................................................................................................105
RS-232 Control Mode.......................................................................................105
RS-232 Pass-Thru Mode...................................................................................105
Flow Control......................................................................................................106
Configure the System for RS-232 Operation........................................................107
Command Line Interface (CLI)..............................................................................107
Chapter 6 - Testing and Troubleshooting ............................. 109
Indicator Lamps ..............................................................................................................109
Indicator Lamps on the PRI Network Interface Module ...................................110
Indicator Lamps on the Quad BRI Network Interface Module ........................111
Indicator Lamps on the V.35/RS-449/RS-530 Network Interface Module.....112
Fault Isolation..................................................................................................................113
ISDN Error Codes ...........................................................................................................114
Appendix A - System Interoperability................................. 121
Appendix B - ViewStation Series Cables............................. 125
Board Room and Custom Room Systems.....................................................125
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Medium and Large Room Systems ............................................................... 128
Small Room Systems........................................................................................ 130
Safety and Legal Notices..................................................... 133
Index................................................................................. 135
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List of Figures
The Deployment Process................................................................................... 78
Installing Network Interface Modules ............................................................ 79
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List of Tables
Table 2-1.
Table 2-2.
Table 2-3.
Table 2-4.
Table 2-5.
Table 2-6.
Table 2-7.
Table 2-8.
Table 2-9.
Table 2-10.
Table 2-11.
Table 2-12.
Table 2-13.
Table 2-14.
Table 2-15.
Table 2-16.
Table 2-17.
Table 2-18.
Table 2-19.
Table 2-20.
Table 2-21.
Table 2-22.
Table 2-23.
Table 2-24.
Table 2-25.
Table 3-1.
Table 3-2.
Table 3-3.
Table 3-4.
Table 3-5.
Table 3-6.
Table 3-7.
Table 4-1.
Table 5-1.
Table 5-2.
Table 6-1.
Table 6-2.
Table 6-3.
Electrical and Physical Specifications.............................................................. 12
Connectivity ........................................................................................................ 13
Video Standards Supported.............................................................................. 14
Video Signal Formats......................................................................................... 14
Video Input/Output Electrical Specifications................................................ 15
Video Resolution, Frame Rate, and Error Correction ................................... 15
Cameras and Displays ....................................................................................... 16
Audio Input/Output Electrical Characteristics ............................................. 16
Audio Features.................................................................................................... 17
Microphone Pods................................................................................................ 17
Call Capabilities.................................................................................................. 18
User Interface ...................................................................................................... 19
Quad BRI Indicator Lamps ............................................................................... 22
Sample NT-1 Settings......................................................................................... 24
ISDN Switch Types and SPID Allocations...................................................... 25
PRI T1 and E1 Network Interface Modules.................................................... 26
PRI Network Side Indicator Lamps................................................................. 27
PRI Peripheral Side Indicator Lamps .............................................................. 28
V.35/RS-449/RS-530 Peripheral Side Indicators ........................................... 31
V.35/RS-449/RS-530 Network Side Indicator Lamps .................................. 32
Serial Interface Control Signals ........................................................................ 38
Dial-Out State Machine...................................................................................... 39
Inbound Call State Machine ............................................................................. 40
Non-Dialed User-Initiated Call State Machine ............................................. 42
Non-dialed Network-Initiated Call State Machine ....................................... 43
Latency, Jitter, and Packet Loss........................................................................ 50
Bandwidth Requirements.................................................................................. 53
Zone Identifiers and Neighbor Gatekeepers .................................................. 61
ISDN PRI Requirements .................................................................................... 64
Example Configuration, Data Module 1 ......................................................... 70
Example Configuration: Channel 1, Secondary Data Module 2.................. 70
Site Considerations............................................................................................. 72
Firewall Ports to Open for Videoconferencing............................................... 89
Expected Display for Each Monitor................................................................. 98
RS-232 Control and Pass-Thru Modes........................................................... 106
PRI indicator lamps - Network side .............................................................. 110
PRI indicator lamps - Peripheral side............................................................ 111
Quad BRI Indicator Lamps ............................................................................. 111
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Table 6-4.
Table 6-5.
Table 6-6.
Table 6-7.
Table A-1.
Table A-2.
Table A-3.
Table A-4.
Table A-5.
Table B-1.
Table B-2.
Table B-3.
Table B-4.
Table B-5.
Table B-6.
Table B-7.
Table B-8.
Table B-9.
Table B-10.
Table B-11.
Table B-12.
V.35/RS-449/RS-530 Indicator Lamps - Network Side...............................112
V.35/RS-449/RS-530 Indicator Lamps - Peripheral Side ............................112
Fault Isolation ....................................................................................................113
ISDN Call Status Codes....................................................................................114
H.320 Endpoints................................................................................................121
H.323 Endpoints................................................................................................122
H.323 MCU Interoperability............................................................................123
Gateway/Gatekeeper Interoperability ..........................................................123
NAT and Firewall Interoperability.................................................................124
Cables for VS4000..............................................................................................125
Cables for ViewStation EX and ViewStation FX...........................................126
Cables for Upgrades to ViewStation EX, ViewStation FX, and VS4000....126
Cables for ViewStation EX, ViewStation FX, and VS4000 Accessories .....127
Additional Cables for ViewStation EX, ViewStation FX, and VS4000 ......127
Cables for ViewStation H.323..........................................................................128
Cables for ViewStation MP..............................................................................129
Cables for ViewStation MP DCP.....................................................................129
Cables for Upgrading ViewStation Models (Except FX).............................130
Cables for ViewStation SP 128.........................................................................130
Cables for ViewStation 128..............................................................................131
Cables for ViewStation SP 384.........................................................................131
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1
About this Manual
This chapter provides information to help you use the rest of the
manual.
This manual covers the following topics:
Topic
Page
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Conventions Used in this Manual
The following typographic conventions are used in this manual:
❑ Links that allow you to jump to other sections of this manual are
blue.
❑ File path names and commands you type in command lines are
shown in this font.
❑ Screen names and elements are shown in bold type.
❑ Navigation through sequences of screens or menu selections is
shown in this form: First selection > second selection > third
selection.
Glossary
4CIF
4 x CIF (Common Intermediate Format). A video
format providing resolution of 704 x 576 pixels.
See also CIF, QCIF, 16CIF.
16CIF
ADSL
16 x CIF (Common Intermediate Format). A video
format providing resolution of 1408 x 1152 pixels.
See also CIF, 4CIF, QCIF.
Asymmetrical Digital Subscriber Line. Used to
transmit digital data over telephone wires at up to
six megabits per second.
AIS
Alarm Indication Signal. This indicates that there
is a problem upstream.
Analog Line
A telephone line that transmits and receives
analog signals. An analog signal is a true electrical
representation of the original source audio.
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Chapter 1 - About this Manual
ARJ
H.323 Admission Reject Message. This message is
from the Gatekeeper, rejecting the endpoint’s
request to connect to another endpoint.
ARQ
H.323 Admission Request Message. This message
is from an endpoint to the Gatekeeper requesting
a connection to another endpoint.
Automatic
A feature on Polycom ViewStation® systems that
VoiceTracking allows the camera to point toward the person
speaking.
B channel
Bearer channel. B channels carry audio and video.
Bandwidth
The data-carrying capacity of a network
connection, given in terms of speed. For example,
an Ethernet link is capable of moving 10 million
bits of data per second. A Fast Ethernet link can
move 100 million bits of data per second – it has 10
times more bandwidth.
Bonding Calls In ISDN BRI and PRI transmissions, bonding
refers to joining two or more B channels together
to get one channel whose bandwidth is equal to
the sum of the bonded channels’ bandwidths.
Using a Quad BRI interface, up to 8 channels may
be bonded. T1 allows up to 23 channels to be
bonded, and E1 allows up to 30.
BRI
ISDN Basic Rate Interface. Provides two B
channels and one 16 Kbps D channel (2B+D) for a
total of 144 Kbps, 128Kbps of which is available
for the audio and video content of the call.
Bridge
A device that passes packets between network
segments that use the same communications
protocol. If a packet’s destination is within the
sender’s own network segment, the bridge keeps
the packet local. Otherwise, the bridge passes the
packet to the network backbone. Also, in
videoconferencing, a Multipoint Control Unit. See
MCU.
Broadcast
A one-to-many transmission that can be received
by anyone connected to the network.
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CIF
Common Intermediate Format, also called FCIF.
A video format providing resolution of 352 x 288
pixels. See also QCIF, 4CIF, 16CIF.
Client
A networked PC or terminal that shares services
with other PCs. These services are provided by a
server.
Conference
Call
Any call that establishes all-way communication
between three or more endpoints.
CPE
Customer Premises Equipment.
Cyclic Redundancy Check.
Channel Service Unit.
CRC
CSU
D channel
Data channel. The D channel carries the call
protocol signals.
Data
Conferencing
Enables people in different locations to work on
the same document via networked computers.
Also called collaborative computing.
DB-25
The standard 25-pin connector used for RS-232
serial data communications.
DCE
Data Communications Equipment.
DHCP
Dynamic Host Configuration Protocol. DHCP
servers permit multiple devices to share a group
of IP addresses, assigning IP addresses to specific
devices as needed.
DID
Direct Inward Dial.
Digital Line
A telephone line that carries audio encoded as a
digital signal, which must be decoded to analog at
the destination. ISDN uses digital signaling.
Downstream
DSL
Closer to the endpoint. For example, the
peripheral side of a network interface module is
downstream of the network side.
Digital Subscriber Line. Uses existing copper
telephone lines and connects to the telephone
company’s central office. See also ADSL.
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Chapter 1 - About this Manual
Endpoint
Ethernet
A site, videoconferencing system, gateway, or
MCU.
10 Mbps or 100 Mbps LAN technology based on
CSMA/CD.
Far End
Fast Ethernet
FCIF
The party or parties to whom you place a call.
100 Mbps LAN technology based on CSMA/CD.
Full CIF. See CIF.
Firewall
A network node set up as a boundary to prevent
traffic from one segment to cross over into
another.
fps
Frames per second. Note that there are two fields
per frame.
FTP
File Transfer Protocol. A part of the chief Internet
protocol stack or group (TCP/IP) used for
transferring files.
Full Duplex
Transmission in two directions at once
(bidirectional communication). In a full-duplex
call, all participants can both talk and hear others
at the same time.
Gatekeeper
Gateway
An H.323 device that provides address
translation, control access, and bandwidth
management to the LAN.
An H.323 device that provide real-time, two-way
communication between dissimilar (H.323 and
H.320) endpoints operating across dissimilar
networks.
GUI
Graphical User Interface. A user interface that
incorporates icons, command menus, and other
graphical elements. GUI-based software requires
the use of a mouse, touch-screen, or other pointing
device.
H.320
ITU-T videoconferencing standards for ISDN.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
H.323
ITU-T videoconferencing standard for IP. H.323
includes the H.225, H.245, G.711, G.722, G.723.1,
G.728, and G.729 standards.
IMUX
IP
Inverse Multiplexer. See Quad BRI network
interface module.
Internet Protocol. A unique IP address identifies
every computer connected to the Internet. IP
addresses take the form 255.255.255.255; each
of the four numbers is in the range 0 to 255.
IP Precedence Audio, video and far end camera control packets
may be assigned a higher priority than other
network traffic. Precedence 4 is recommended for
multimedia data. By default, IP precedence is
disabled by most routers and is not enabled on the
Internet.
ISDN
Integrated Services Digital Network. Digital
telephone service, available at 128 Kbps (BRI),
1.544 Mbps (PRI), and Broadband ISDN (2 Mbps -
600 Mbps).
ISP
Internet Service Provider.
LAN
Local Area Network. A network that serves users
within a confined geographical area. It includes
servers, workstations, a network operating
system and a communications link.
LED
Light-Emitting Diode. An indicator lamp.
MCU
Multipoint Conferencing Unit or Multi Control
Unit. Hardware that allows three or more
videoconferencing systems to participate in an
interactive multi-way conference.
Multicast
A one-to-many transmission that goes to
designated recipients only.
Multipoint call A call in which more than two sites participate.
Near End
Your end or local end site of the videoconference.
Network side
The portion of a network interface module that
connects to the network. See also Upstream.
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Chapter 1 - About this Manual
NFAS
NT-1
Non-Facility Associated Signalling.
Network Termination type 1. The device that
converts the ISDN BRI U interface from the
telecommunications service provider to the S/T
interface used by ISDN products and systems.
Pan
Move the camera to the left or right.
PBX
Private Branch eXchange. A private telephone
switching system connected to common lines
from one or more central offices. Most PBXs allow
analog extensions on the system, allowing access
to special features such as conferencing and
transferring to analog devices. If you are using a
telephone connected to a PBX, typically you will
be required to dial 9 to gain access to an outside
line.
Peripheral
side
The portion of a network interface module that
connects to the videoconferencing system. See
also Downstream.
Point-to-point A call between two sites.
call
POTS
PRI
Plain Old Telephone Service. See PSTN.
Primary Rate Interface.
PrivateBranch See PBX.
Exchange
PSTN
Public Switched Telephone Network. The voice
telephone network accessible to all those with
telephones and access privileges.
PTZ
Pan/Tilt/Zoom. Describes the cameras supplied
as part of the ViewStation EX, ViewStation FX,
and VS4000 systems.
QCIF
Quarter CIF (Common Intermediate Format). A
video format providing resolution of 176 x 144
pixels. See also CIF, 4CIF, 16CIF.
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QoS
Quality of Service. This allows guaranteed
bandwidth and packet delivery between
endpoints over a packet network.
RAI
Remote Alarm Indication.
RJ-11
A six-conductor modular jack. RJ-11 connectors
are used on all standard telephones in the US for
connecting to the PSTN.
RJ-45
RJ-9
An eight-conductor modular jack commonly used
for data lines such as LAN connections.
A four-conductor modular jack commonly used
for telephone handsets. Polycom uses RJ-9
connectors for all of the Extension microphone
connections.
Router
Server
Site
A networking device with ports for connection to
hubs and switches. It provides central
connectivity and security for multiple
workgroups and LANs.
A computer or software that provides services to
clients — for example, file storage (file server),
programs (application server), or printer sharing
(print server). See also client.
A location or a system; the term implies that rooms
and people are also included. Two sites participate
in a point-to-point call. Multiple sites participate in
a multipoint call.
Streaming
A technology that allows an audio or video file to
start playing on your computer before the entire
file has finished downloading.
Tilt
UI
Move the camera up or down.
User Interface. The controls that let you interact
with equipment or software. See also GUI.
UPS
Uninterruptable Power Supply.
Upstream
Farther from the endpoint. For example, the
network side of a network interface module is
upstream of the peripheral side.
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Chapter 1 - About this Manual
WAN
Wide Area Network. Business with LANs at more
than one location may use the public carrier
network to carry data between these locations.
Typical WAN services provided by the pubic
carrier are Frame Relay, X.25, and ISDN for
carrying data.
Whiteboard
Zoom
Software that allows you to share and annotate
images.
Adjust the area shown on the screen using the
camera’s telephoto and wide-angle capabilities.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
System Descriptions
The Polycom ViewStation EX and ViewStation FX systems are
set-top videoconferencing systems designed for conference rooms.
The Polycom VS4000 system is a rack-mounted videoconferencing
system designed for large conference rooms or board rooms. These
systems may be purchased with the following optional network
interface modules:
❑ Quad BRI : allows up to four ISDN lines to be multiplexed
together to create a higher-bandwidth connection to the far-site
device. Each ISDN line adds 128 Kbps to the available data rate.
❑ V.35/RS-449/RS-530: supports V.35, RS-449, and RS-530
protocols, depending on the cable used. This interface module
allows you to connect the system to third-party network
interfaces.
In addition, a PRI network interface module is available with the
ViewStation FX and VS4000 systems. This module allows you to
make video calls over ISDN T1 and E1 lines.
Technical Specifications
The following table gives electrical and physical specifications for
the ViewStation EX, ViewStation FX, and VS4000 systems.
Table 2-1. Electrical and Physical Specifications
Parameter
ViewStation EX and FX VS4000
Auto-sense
Power supply type
Line voltage
90 to 260 VAC continuous
47 to 63 Hz continuous
40 W
Line frequency
Power consumption
Case style
Set-top
Rack-mount
Physical dimensions 33 x 20 x 15 cm
(13 x 8 x 6 in.)
46.7 x 43.8 x 8.8 cm
(18.4 x 17.2 x 3.5 in.)
Weight
2.7 kg (6 lbs)
4.7 kg (10.3 lbs)
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Chapter 2 - Technical Information
The following table describes the network interfaces available.
Table 2-2. Connectivity
Network interface
Connectivity provided
LAN/WAN
Supports—TCP/IP, DNS, WINS, SNMP, DHCP,
ARP, WWW, FTP, Telnet
(2) 10/100 Mbps Ethernet ports
T.120 interface with ShowStation® IP,
WebStation™ and Microsoft ® NetMeeting®
Telephony
Quad BRI (Basic Rate Interface)
PRI (Primary Rate Interface) T1 — not available
for ViewStation EX
PRI E1 — not available for ViewStation EX
V.35/RS449/RS-530; support direct connect or
RS-366 dialing
Supports H.331 broadcast mode
Data port
RS-232 control port/data communications port
(1200 baud to 115 K baud asynchronous)
ViewStation EX, ViewStation FX, and VS4000 are Cisco AVVID
certified.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
The following table lists the supported video standards.
Table 2-3. Video Standards Supported
Standard
Supported
Videoconferencing
H.320 p x 64
H.323
Video standards
H.261 + Annex D
H.263 + Annexes F, I, J, L, T, U, u
ITU 60 fields/sec
Other ITU standards
H.221
BONDING, mode 1
H.225, H.245
H.281 far-end camera control
H.331 broadcast mode
The following table gives information about the video signal
formats.
Table 2-4. Video Signal Formats
Input/Output
Signal format
ViewStation EX and FX VS4000
Video inputs (NTSC or PAL)
Main camera
S-video and composite
S-video and composite
S-video and composite
Composite
Second camera
Document camera
VCR (playback)
S-video
S-video
Composite
Video outputs (NTSC or PAL)
Main display
S-video and composite
S-video and composite
S-video and composite
Composite
Additional displays S-video
VCR out
Composite
(recording)
VGA out
Up to 1280 x 1024
Up to 1280 x 1024
SXGA out
Up to 1280 x 1024
14
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Chapter 2 - Technical Information
The following table gives electrical specifications for the video
inputs and outputs.
Table 2-5. Video Input/Output Electrical Specifications
Parameter
Impedance
Signal amplitude
Coupling
Value/format
75 Ω
1.0 Vpp typical
DC
The following table gives other video specifications for the
ViewStation EX, ViewStation FX, and VS4000 systems.
Table 2-6. Video Resolution, Frame Rate, and Error Correction
Parameter
Value/format
Video format
Video resolutions
NTSC or PAL
QCIF (176 x 144)
CIF (352 x 288)
4CIF (704 x 576)
TV-quality wide-screen (letterbox)
Graphics
H.261 mode: 4CIF (704 x 576)
resolutions, slide
transmission
H.263 mode: 16CIF (1408 x 1152)
Graphics resolution,
local display
up to 1280 x 1024
Frame rate
NTSC: 30 frames/second
(60 fields/second)
PAL: 25 frames/second (50 fields/second)
Polycom Video Error Concealment (PVEC)a
Error correction
a. PVEC is activated and deactivated automatically, as needed.
Video quality degradation with the PVEC feature active may
indicate that your IP network is not functioning properly. At the time
of publication, PVEC is not available in dual stream mode or
standards-based 60-field video.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
The following table gives camera and display information.
Table 2-7. Cameras and Displays
Parameter
ViewStation EX and FX VS4000
Main camera
Integrated Sony EVI-10
External Sony
EVI-D10
Main camera
features
65° field of view
12 x Zoom; f=4.2 to 42 mm
F=1.85 to 2.9 mm
Auto focus
Automatic white balance
Main camera presets
Far camera presets
Tracking
10
10
Voice tracking
Track to presets
Auto-PIP system
Auto-on, auto-swap, auto-off
The following table gives electrical specifications for the audio
inputs and outputs.
Table 2-8. Audio Input/Output Electrical Characteristics
Parameter
Value/format
Input
Impedance
Signal amplitude
Coupling
10 KΩ minimum
1.0 Vpp full-scale (expected)
AC
Output
Impedance
Signal amplitude
Coupling
800 Ω maximum
1.0 Vpp full-scale (typical)
AC
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The following table gives information about audio features.
Table 2-9. Audio Features
Parameter
Value/format
Audio codecsa
Mode
G.711, G.722, G.722.1b, G.728
Full duplex
Gain control
Noise suppression
Echo cancellation
Automatic
Automatic
Instant adaptation
a. The protocol used depends on the protocols supported by the
opposite endpoint and on the line rate. Audio protocol is selected
automatically to provide optimum audio clarity.
b. Provides enhanced frame loss compensation.
The following table gives information about the microphone pods
supplied with the ViewStation EX, ViewStation FX, and VS4000
systems.
Table 2-10. Microphone Pods
Parameter
Value/description
Pick-up elements
Coverage
3 hypercardioid pressure-zone microphones
360°
Placement
Minimum 6 ft (1.8 m) from speakers
Minimum 15 ft (4.6 m) from any other microphone
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
The following table gives information about multipoint calling.
Table 2-11. Call Capabilities
Feature
Capability
Maximum data rate
ViewStation EX: 768 Kbps
ViewStation FX and VS4000: 2 Mbps
Local plus three other sites
Local plus two other sites
Cascading (H.320 only)
ViewStation FX and VS4000: 384 Kbps
ViewStation EX: 256 Kbps
ViewStation FX and VS4000: 512 Kbps
ViewStation EX: 384 Kbps
Up to 10 sites at 384 Kbps each, plus
audio only to four other sites
Mixed-protocol dialing
(H.320 and H.323)
Local plus three other sites, through
internal MCU
Inbound calling
Sites using either H.320 (ISDN) or H.323
(IP) can dial in to an existing call
Integrated speakerphone
(where approved)
Third-party audio add-in
Point-to-point calling
Multipoint calling
Video streaming
Live multicast to Cisco IP/TV® viewer or
Apple QuickTime® player
Start and stop the stream using Polycom
browser interface
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The following table gives information about the systems’ user
interfaces.
Table 2-12. User Interface
Feature
Capability
Languages
English, French, German, Spanish, Italian,
Portuguese, Norwegian, Chinese, Japanese
Control system
Hand-held, ergonomically designed remote control
Infrared receiver (external unit for VS4000,
integrated in ViewStation EX and FX)
On-screen graphical user interface
Web browser interface (requires Microsoft Internet
Explorer® or Netscape Navigator®)
Closed caption
support
Three lines of text
Presentation
and
collaboration
tools
PolycomSNAP™ screen capture tool
pcPresent™ conversion tool for Microsoft
PowerPoint® files
Collaboration
accessories
Visual Concert FX™
Visual Concert PC™
API
ARENA™ API (Enables custom integration with
remote devices such as touchscreen panels through
RS-232 or Telnet interfaces)
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
RS-232 Interface
The RS-232 interface allows users to connect a ViewStation EX,
ViewStation FX, or VS4000 to a PC. This provides a means of access
to the ARENA API, which allows users to automate some of the
systems’ control features. Refer to the ViewStation EX, ViewStation
FX, and VS4000 ARENA API Programmer’s Guide for information
about this API.
The RS-232 interface also makes it possible to use the system as a
peripheral device for an RS-232 host.
Figure 2-1 shows the RS-232 cable for the ViewStation EX and
Viewstation FX systems.
Figure 2-1. RS-232 Cable for ViewStation EX and FX
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Figure 2-2 shows the RS-232 cable for the VS4000 system.
Figure 2-2. RS-232 Cable for VS4000
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Quad BRI Network Interface Module
The following paragraphs provide technical information about the
Quad BRI network interface module available with the
ViewStation EX, ViewStation FX, and VS4000 systems.
If you do not connect the system to an internal telephone system
(PBX), you must use a network termination (NT-1) device between
the Quad BRI and the ISDN connection at the wall outlet.
Note
Outside the United States or Canada, service providers or public
telephone utilities generally provide the NT-1 device.
Indicators on the Quad BRI Network Interface Module
Table 2-13 shows the indicator lamp (LED) activity on the Quad BRI
network interface module.
Table 2-13. Quad BRI Indicator Lamps
Indication
Meaning
Green LED
Off = no connection to the switch, or no clock.
On = clock is synchronized with the switch.
Yellow LED
Off = in reset mode, booting
On = active
Both LEDs on
Normal operation
Note
The indicators do not show whether the SPIDs, switch type, and
ISDN numbers have been correctly entered into the endpoint
equipment.
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Quad BRI Cabling
The Quad BRI network interface module connects to the endpoint
using a cable with one keyed RJ-45 connector and one standard
RJ-45 connector. Figure 2-3 shows this cable. Because it uses a
non-standard connector, Polycom Inc. does not support cables of
this type that are fabricated by other vendors.
Figure 2-3. Keyed RJ-45 Cable, System to Network Interface Module
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Standard RJ-45 to RJ-45 cables connect the Quad BRI to the network.
Figure 2-4 shows this type of cable.
Figure 2-4. Standard RJ-45 Cable, Network Interface Module to Network
NT-1 Information
Following are sample NT-1 settings. For more detailed diagnostic
information, see the manual that was shipped with your particular
NT-1 device.
Table 2-14. Sample NT-1 Settings
Make and model
Switch
Indicator
ADTRAN NT-1 ACE
Ready = ON
Error = OFF
Power = ON
Motorola NT1D
1 = ON
2 = ON
3 = ON
4 = ON
SC = ON
ACT = ON
LB = OFF
LP= ON
RP = OFF
RPR = OFF
AlphaTelecom(AT1) 1 = ON
Power = ON
ST&U = OFF
Back = OFF
UT620F
2 = ON
3 = OFF
4 = ON
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ISDN Switches
Depending on the type of ISDN lines you are using, your service
provider may assign zero, one, or two SPIDs per line. Refer to
Table 2-15. ISDN Switch Types and SPID Allocations
Switch Type
SPIDs Allocated
None
AT&T 5ESS Custom
AT&T 5ESS NI-1
NT DMS-100 NI-1
NI-2
1 per B-channel
1 per B-channel
1 per device
1 per B-channel
1 per device
None
Siemens EWSD NI-1
Siemens EWSD NI-2
International (outside United States or
Canada)
Automatic Quad BRI Software Update
The Quad BRI is expected to have a software version at least as
recent as that of the system to which it is connected. If, upon reboot,
the system detects an older software version on the Quad BRI, it
automatically updates the Quad BRI software. The download is
accompanied by an explanatory message.
Caution
Do not turn off your system during the download process.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
PRI Network Interface Module for ViewStation FX and
VS4000
The following paragraphs provide technical information about the
T1 and E1 PRI network interface modules available with the
ViewStation FX and VS4000. This network interface module is not
available with the ViewStation EX.
Table 2-16. PRI T1 and E1 Network Interface Modules
Parameter
PRI T1
PRI E1
Areas where used
North America,
Japan, Hong Kong,
Taiwan
Europe, other areas
where T1 is not used
B channels
23
1
30
1
D channels
Total data capacity
1472 Mbps
1920 Mbps
(23 x 64 Kbps)
(30 x 64 Kbps)
Power source
VS4000/ViewStation
FX, via peripheral
cable
VS4000/ViewStation
FX, via peripheral
cable
External power supply External power supply
available (required if
not using external
CSU)
available
Clock source
Network
Yes
Network
No
Keep-alive signal
Switch protocol
AT&T 5ESS
AT&T 4ESS
Nortel DMS
NI-2
NET5/CTR4
Line signalling
ESF/B8ZS
CRC4/HDB3
HDB3
H0 and other
higher-bandwidth
channels
Not supported
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Table 2-16. PRI T1 and E1 Network Interface Modules (Continued)
Parameter
PRI T1
PRI E1
Non-Facility
Not supported
AssociatedSignaling
(NFAS)
Special services
(Caller ID, call
blocking, etc.)
Not supported
Indicators on the PRI Network Interface Module
The tables below describe the expected behavior of the indicator
lamps on the PRI network interface module. On the network side,
the expected behavior depends on whether it is a T1 module or an
E1 module.
Table 2-17. PRI Network Side Indicator Lamps
Indication
PRI T1
PRI E1
Red LED blinking
Not connected to the network, or no power to the
upstream equipment
Red LED on
Connected to the network, but no clock sync
Yellow LED blinking
Receiving clock and
frame sync; receiving
RAI from the network
with CRC errors
Yellow LED on
Receiving clock and
Receiving clock and
framesync, waitingfor frame sync; receiving
a timer to elapse
Remote Alarm
Indication (RAI) from
the network with no
Cyclic Redundancy
Check (CRC) errors
Red and yellow
LEDs on
Receiving clock sync;
receiving AIS Alarm
Indication Signal
(unframed all-ones)
Green LED on
Synchronized with the network and ready to use
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Indicator lamps on the peripheral side of the PRI network interface
module have the same meanings for both the T1 and E1 models.
Table 2-18. PRI Peripheral Side Indicator Lamps
Indication
Meaning
Amber LED
on
The PRI network interface module is in boot mode. a
Amber and
green LEDs
on
New software is being burned into flash.
Green LED on The PRI network interface module is fully booted.b
a. If this LED stays on for more than a minute, new microcode is
being uploaded from the system to DRAM.
b. If the PRI network interface module is connected to an external
power source, the green LED turns on after several seconds, even
if the peripheral link cable is not connected.
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Chapter 2 - Technical Information
PRI Cabling
The peripheral side of the PRI network interface module connects to
the endpoint using a cable with keyed RJ-45 connectors. Figure 2-5
shows this cable. Because it uses a non-standard connector, Polycom
Inc. does not support cables of this type that are fabricated by other
vendors.
Figure 2-5. Keyed RJ-45 Cable, System to Network Interface Module
A standard RJ-45 to RJ-45 cables connects the PRI to the network.
This is the same cable used by the Quad BRI network interface.
Figure 2-6 shows this type of cable.
Figure 2-6. Standard RJ-45 Cable, Network Interface Module to Network
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Channel Selection
For outgoing calls, the system uses the lowest-numbered available
channel (1-23 for a PRI T1 and 1-30 for a PRI E1). If an additional
channel is needed, the system chooses the next higher-numbered
channel. For example, if channels 1 through 7 are unavailable, but 8
is available, the system uses channel 8 to place an outgoing call. If an
additional channel is needed, the system will use the next available
active channel in the range (which could be 9, and so on).
For incoming calls, the system uses the highest numbered channel
that is available. If another channel is needed, the next lower
channel number is used.
PRI E1 Channel Information
The PRI Status screen for E1 shows 30 channels. However, E1 trunk
lines have 32 timeslots, numbered 0 - 31. Timeslot 0 is used for
framing, and timeslot 16 is used for call signaling (the D channel).
The remaining 30 timeslots are used as bearer (data) channels.
In call signaling between Polycom equipment and the switch, these
channels are numbered 1-15, 17-31. But the PRI Status screen
numbers these channels in the range 1-30. On the PRI Status screen,
channels 1-15 control the status of timeslots 1-15, and channels 16-30
control the status of timeslots 17-31.
Dedicated Full PRI T1 or E1 Line
All channels should be active for a full T1 or E1 line dedicated to
your ViewStation FX or VS4000.
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Chapter 2 - Technical Information
V.35/RS-449/RS-530 Network Interface Module
The following paragraphs provide technical information about the
V.35/RS-449/RS-530 network interface module available with the
ViewStation EX, ViewStation FX, and VS4000.
The system’s V.35/RS-449/RS-530 network interface module is not
interchangeable with the previous V.35 network interface module.
The new module uses HD-44F connectors for ports 1 and 2, and uses
a keyed RJ-45 connector for the serial link to the back panel of the
ViewStation FX or VS4000. The cable used with the
V.35/RS-449/RS-530 network interface module is the same as is
used for the PRI network interface module. It is shown in Figure 2-5.
An HD-44M to DB-25F adapter cable is available to connect existing
ViewStation DB-25 interface module V.35 network cables.
“Common speeds” are divisible by both 56 and 64. The
V.35/RS-449/RS-530 network interface module supports the
following common speeds:
❑ 448 Kbps
❑ 896 Kbps
❑ 1344 Kbps (E1 only)
Indicators on the V.35/RS-449/RS-530 Network Interface Module
The following tables describe the behavior of the indicator lamps on
the V.35/RS-449/RS-530 network interface module.
Table 2-19. V.35/RS-449/RS-530 Peripheral Side Indicators
Indication
Meaning
Amber LED and
Power-up test
green LED flash once
Amber LED off
Amber LED on
No communication between endpoint and
network interface module
Communication established between endpoint
and network interface module
Amber LED and
green LED on
Communication established with network
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Table 2-20. V.35/RS-449/RS-530 Network Side Indicator Lamps
Indication
Amber LED on
Meaning
Network interface module is connected to the
network and receiving a clock signal
Green LED on
System is in a call
V.35/RS-449/RS-530 Cabling
This section provides cable drawings and pinouts for the three
cables that you can use with the V.35/RS-449/RS-530 network
interface module. All are common to the ViewStation EX,
ViewStation FX, and VS4000.
Figure 2-7. HD-44M to RS-366/V.35 “Y” Cable Diagram
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Serial Interface Control Signals
If you need to customize your V.35/RS-449/RS-530 interface, use
information provided by your network equipment vendor.
Table 2-21. Serial Interface Control Signals
Signal
(Pin)
In/Out Description
Configuration Option
ST
(TC/TT)
OUT
Send Timing
(clock)
Normal: falling edge sends data
Inverted: rising edge sends data
RT (RC) IN
Receive
Normal: rising edge receives
Timing (clock)
data
Inverted: falling edge receives
data
RTS
(RTS)
OUT
Request To
Send
Normal: high is logic 1
Inverted: low is logic 1
DCD
(DCD)
IN
Data Carrier
Detect
Normal: high is logic 1
Inverted: low is logic 1
Filter: allow DCD to drop for 60
seconds before changing call
state
CTS
(CTS)
IN
Clear To Send
Normal: high is logic 1
Inverted: low is logic 1
DTR
(DTR)
OUT
Data Terminal
Ready
Normal: high is logic 1
Inverted: low is logic 1
On: signal remains higha
DSR
(DSR)
IN
Data Set
Ready
Normal: high is logic 1
Inverted: low is logic 1
Answer: Use DSR as a Ring-In
indicationb
a. If set to ON, inverted is not an option.
b. DSR is not used as a ring-in indication if it is set to ANSWER in
the V.35 Advanced Setup screen.
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State Machine
The V.35/RS-449/RS-530 state machine controls how the
V.35/RS-449/RS-530 interface signals handshake with the network
interface equipment while the call is being established. The
following tables describe the machine states.
Table 2-22. Dial-Out State Machine
ViewStation or
State
VS4000 Signals
Network Signals
1
Initial State:
DTR = 0a
Initial State:
RI = 0
DLO = 0
ACR = 0
DSR = 0
RTS = 0b
CRQ = 0
USER INITIATES
CALL
2
3
4
5
6
DTR = 1a
Wait 10 ms
CRQ = 1
PND = 1
PND = 0
Set Digit
(NB1,NB2,NB3,NB4)
7
DPR = 1
8
9
DPR = 0
10
If not last digit, go to
state 4; else continue
11
12
Call connects on
network
DSR = 1 AND/OR
DCD = 1
(AND/OR DSR = 1 c
13
14
RTS = 1b
DATAFLOWSTARTS DATA FLOW STARTS
User Hang-up Far end hang-up
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Table 2-22. Dial-Out State Machine (Continued)
ViewStation or
State
VS4000 Signals
Network Signals
15
RTS = 0b
DTR = 0a
DSR = 1 to 0, OR DCD
= 1 to 0
CRQ = 0
A falling edge on DSR
or DCD are interpreted
by the ViewStation FX
or VS4000 as a
AllsignalsgolowifFar
End or User hang up
is detected
hang-up
16
IDLE
IDLE
RI = 0
DLO = 0
ACR = 0
DSR = 0
DTR = 0a
RTS = 0b
CRQ = 0
a. DTR does not act as shown but remains high if DTR is set to ON
in the V.35 Advanced Setup screen.
b. RTS does not act as shown but acts as a resync pulse if
Security/Crypto-Resync is set to ON.
c. DSR is used as a ring-in indicate if DSR is set to ANSWER in the
V.35 Advanced Setup screen.
Table 2-23. Inbound Call State Machine
ViewStation FX or
State
VS4000 Signals
Network Signals
1
Initial State:
DTR = 0a
RTS = 0b
CRQ = 0
Initial State:
RI = 0
DLO = 0
ACR = 0
DSR = 0
REMOTE USER
INITIATES CALL
2
RI= 0 to 1, or DCD= 0
to 1, or DSR= 0 to 1c
3
4
Notify user of ring-ind
System accepts call
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Table 2-23. Inbound Call State Machine (Continued)
ViewStation FX or
VS4000 Signals
State
Network Signals
5
DTR = 1
6
7
8
RTS = 1b
Wait for DSR high
DSR = 1 AND/OR
DCD = 1 (AND/OR
DSR = 1c)
9
Go to connected state
10
11
12
DATAFLOWSTARTS DATA FLOW STARTS
User Hang-up
Far End Hang-up
RTS = 0b
DTR = 0a
CRQ = 0
DSR= 1 to 0, OR
DCD= 1 to 0 OR CTS=
1 to 0
AllsignalsgolowifFar A falling edge on DSR
End or User hang up
is detected
or DCD or CTS is
interpreted by the
FX/VS4000 as a
hang-upe
13
IDLE
IDLE
RI = 0
DLO = 0
ACR = 0
DSR = 0
DTR = 0a
RTS = 0b
CRQ = 0
a. DTR does not act as shown but remains high if DTR is set to ON
in the V.35 Advanced Setup screen.
b. RTS does not act as shown but acts as a resync pulse if
Security/Crypto Resync is set to ON.
c. DSR is used as a ring-in indicate if DSR is set to ANSWER in the
V.35 Advanced Setup screen.
d. If RS-366 Dialing is not enabled, auto answer must be enabled.
If auto answer is not enabled, ring-in will be ignored when in
non-dialed mode.
e. If DCD filter is set to ON in the V.35 Advanced Setup screen,
the system will not react to a low DCD until DCD has been low for
60 seconds.
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Integrators’ Reference Manual for ViewStation EX, ViewStation FX, and VS4000
Table 2-24. Non-Dialed User-Initiated Call State Machine
ViewStation FX or
VS4000 Signals
State
Network Signals
1
Initial State:
DTR = 0a
RTS = 0b
CRQ = 0
Initial State:
RI = 0
DLO = 0
ACR = 0
DSR = 0
USER INITIATES
CALL
2
3
4
5
DTR = 1a
RTS = 1b
DCD = 0 to 1
DATAFLOWSTARTS DATA FLOW STARTS
User Hang-up
Far end hang-up
6
RTS = 0b
DTR = 0a
CRQ = 0
DSR= 1 to 0, OR
DCD= 1 to 0
A falling edge on DSR
or DCD is interpreted
All signals go low if far
end or User hang up is by the FX/ VS4000 as
detected
a hang-upc
7
IDLE
IDLE
RI = 0
DLO = 0
ACR = 0
DSR = 0
DTR = 0a
RTS = 0b
CRQ = 0
a. DTR does not act as shown but remains high if DTR is set to ON
in the V.35 Advanced Setup screen.
b. RTS does not act as shown but acts as a resync pulse if
Security/Crypto Resync is set to ON.
c. If DCD filter is set to ON in the V.35 Advanced Setup screen,
the system does not react to a low DCD until DCD has been low
for 60 seconds.
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Table 2-25. Non-dialed Network-Initiated Call State Machine
ViewStation FX or
VS4000 Signals
State
Network Signals
1
Initial State:
DTR = 0a
RTS = 0b
CRQ = 0
Initial State:
RI = 0
DLO = 0
ACR = 0
DSR = 0
USER INITIATES
CALL
2
3
4
5
DCD = 0 to 1
DTR = 1a
RTS = 1b
DATAFLOWSTARTS DATA FLOW STARTS
User hang-up
Far end hang-up
6
RTS = 0b
DTR = 0a
CRQ = 0
DSR= 1 to 0, or DCD=
1 to 0
A falling edge on DSR
or DCD is interpreted
All signals go low if far
end or User hang up is by the FX/ VS4000 as
detected
a hang-up
DCD= 0c
7
IDLE
IDLE
RI = 0
DLO = 0
ACR = 0
DSR = 0
DTR = 0a
RTS = 0b
CRQ = 0
a. DTR does not act as shown but remains high if DTR is set to ON
in the V.35 Advanced Setup screen.
b. RTS does not act as shown but acts as a resync pulse if
Security/Crypto Resync is set to ON.
c. If DCD filter is set to ON in the V.35 Advanced Setup screen,
the system does not react to a low DCD until DCD has been low
for 60 seconds.
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Crypto Resync
If a cryptographic encoder/decoder is connected between the
system and the network, it may require a resynchronization signal
from the system. This is a signal indicating that the system has lost
video synchronization due to a network problem and requires that
the cryptographic encoder/decoder resync with the equipment at
the other end of the connection.
To use this feature, select System Info > Admin Setup > Security.
When you select the Crypto Resync option, the Crypto Resync
Pulse screen appears.
On this screen you can enable crypto resync, set the time between
pulses (in seconds), and set the pulse width (in milliseconds).
If the system loses H.320 synchronization while in a call, it sends the
resynchronization pulses at the specified rate until H.320 regains
synchronization.
The resync pulse is output on the RTS signal. If this feature is
enabled, the RTS signal no longer functions as the Ready-To-Send
signal.
Most installations that use encryption equipment require a custom
cable. The cable should route the RTS signal from the system to the
appropriate resync input on the encryption equipment. The
encryption equipment can get its RTS input from the
videoconferencing system's DTR output or by tying this input high.
In this non-dialed mode, the DTR output and RTS output act alike.
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Other Elements of a Typical Deployment
A typical deployment includes some of the following Polycom
equipment and software in addition to videoconferencing
endpoints:
❑ MGC Manager™
❑ Global Management System™
❑ WebCommander™
❑ PathNavigator™
For more information, please refer to the documentation supplied
with the products deployed within your organization, or see
www.polycom.com.
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Predeployment Overview
The diagram below gives an overview of the tasks involved in
predeployment planning.
Document the network:
‰
‰
‰
LANs
Subnets
WAN links
Determine network capacity
requirements
Specify call processing
considerations:
Create the dial plan:
‰
‰
‰
Define CPS architecture
Identify gatekeepers
Specify the default
gatekeeper for each endpoint
or group of endpoints
Specify direct or routed calls
as default mode
‰
‰
‰
‰
‰
Define service plan
Define routing tables
Define policies
Define zones
Define the entity addressing
scheme
‰
Verify appropriateness of the
hardware that will host Polycom
Office software
Start deployment
Figure 3-1. The Predeployment Process
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Video Network Security
Polycom recommends the following general precautions to keep
your video network secure:
❑ Deploy IP endpoints behind a firewall.
❑ If your deployment seldom requires centralized management
capabilities, disable all endpoints’ remote management
capabilities.
❑ If your deployment does not ever require centralized
management capabilities, consider an ISDN-only deployment.
For detailed discussions of how to secure specific models of
videoconferencing equipment, please refer to the documents
available at Polycom’s Security Center,
http://www.polycom.com/securitycenter.
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Best Practices
Polycom recommends the following as best practices when
deploying Polycom IP voice and video applications.
❑ Consider latency, jitter, and packet loss. All are obstacles to
maximum values for these parameters.
Table 3-1. Latency, Jitter, and Packet Loss
Parameter
Latency
Maximum recommended value
less than 150 ms one way; 300 ms end to end
50 ms or less
Jitter
Packet loss
1% or less
❑ Consider system requirements. Be sure to meet the minimum
server hardware requirements of all software-based products.
❑ Consider network requirements. Building an end-to-end H.323
video network requires an infrastructure based on layer 2 and
layer 3 switches and routers.
When planning the deployment of multimedia communication
applications, ensure that switches and routers can handle more
than one queue and are enabled to process applications with
different requirements relating to latency, jitter, and loss
characteristics.
❑ Set IP precedence appropriately (if applicable). Some Polycom
systems can set the precedence level for use in Quality of Service
(QoS) enabled networks.
❑ Determine bandwidth requirements. Consider the total
amount of bandwidth associated with video sessions prior to
deployment. It is recommended that all H.323 video endpoints,
CPSs, gateways, and MCUs be connected to a dedicated 10/100
switched-Ethernet port.
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Notes
Older Polycom ViewStation systems and the RADVision MCUs
and gateways both support 10 Mbps half duplex only.
There are known issues with some older Cisco Catalyst 10/100
switches and video endpoints negotiating half/full duplex. If
the negotiation fails, the endpoint will still function, but the
system will experience video freezing every 3 to 5 seconds.
Predeployment Planning
The main factors to consider in planning the deployment are:
❑ LAN/WAN considerations — document the LANs, subnets,
and WAN links involved in the deployment.
❑ Capacity planning — assess the bandwidth requirements for
the deployment.
❑ Call processing considerations — define call processing
architecture and identify gatekeepers, define registration policy
and call policy.
❑ Dial plan — define details of services, routing, policies, zones,
and addressing.
❑ Server requirements — verify that all management software
will be installed on suitable equipment.
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LAN/WAN Considerations
You will need to develop a network topology checklist that includes
the following information:
❑ List of Networks: To take advantage of least cost routing and
alternate routing, you must define the topology of the Local area
networks (LANs) that each gatekeeper serves, as well as the
LANs that are logically connected to these but served by other
gatekeepers. This allows the gatekeeper to determine how IP
traffic is routed from one endpoint to the next. PathNavigator
uses the network topology to determine when resources are
unavailable so that an alternate (ISDN) path can be determined.
❑ Subnets within each network and subnet IP address: A
network address is the equivalent of a subnet. You will need to
define all subnet addresses within your LAN. If this information
is not available to the gatekeeper, calls may be rejected because
no route can be determined.
❑ WAN links: These are logical connections from one LAN to
another LAN within the WAN cloud, or logical connections
from one network to another network outside of the
organization. The two types of WAN links are the dedicated
WAN link, which is a logical connection via a dedicated link,
leased line, frame relay or though an ATM network; and the
WAN link to other networks through a VPN tunnel, which
connects one network to another through a secure connection
over the Internet.
❑ Network Diagram describing how networks are connected and
bandwidth capacity on each WAN link.
Each gatekeeper will need information about its neighbor
gatekeepers to be able to communicate with them. Neighbor
gatekeepers manage other H.323 zones within an organization and
allow the network’s workload to be distributed across logical
boundaries within the organization. This enables more efficient use
of the network by limiting communication between zones (across
WAN links). When a call originates with one gatekeeper's zone and
that zone's gatekeeper is unable to resolve the dialed address, it will
be forwarded to the neighbor gatekeepers for resolution. The port
used for gatekeeper-to-gatekeeper communication is usually 1719.
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Capacity Planning
H.323 traffic uses more bandwidth than the selected call quality or
H.320 equivalent. Polycom recommends that you allow 20%
overhead for the H.323 signaling traffic. ISDN networks do not
include signaling in the payload calculations, but in TCP/IP
networks all signaling must also be accounted for. For example, a
384-Kbps video call would require approximately 384 Kbps + 20% =
460 Kbps of bandwidth on a TCP/IP network. These figures assume
a full-duplex network.
If H.323 traffic starts out on a half-duplex network segment, it will
require twice the bandwidth indicated by the bandwidth
calculations described above. It will, however, take advantage of
full-duplex segments as soon as it reaches them. For full-duplex
segments, the calculations above remain valid. WAN segments (T1,
Frame Relay, ATM) are typically full-duplex.
The following equations will help in determining the bandwidth
required for H.323 traffic across various network segments:
❑ Full-duplex Ethernet = (Call Speed + 20%) x 1
❑ Half-duplex Ethernet = (Call Speed + 20%) x 2
❑ Wide Area Network = (Call Speed + 20%) x 1
❑ ATM (Using LANE) = (Call Speed + 35%) x 1
The table below provides a comparison between H.320 and H.323
point-to-point calls.
Table 3-2. Bandwidth Requirements
Call Quality
(Speed)
Bandwidth Required over
ISDN (H.320)
BandwidthRequired
over IP (H.323)
128 Kbps
256 Kbps
384 Kbps
512 Kbps
768 Kbps
1 Basic Rate ISDN (BRI) line
2 BRI lines
153 Kbps
307 Kbps
460 Kbps
614 Kbps
922 Kbps
3 BRI lines
4 BRI lines
Fractional T1 or full Primary
Rate ISDN (PRI) line
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Table 3-2. Bandwidth Requirements
1.5 Mbps
2.0 Mbps
1 PRI line
1.843 Mbps
2.4 Mbps
Multiplea PRI lines or E1 line
(Europe)
a. Requires a third-party inverse multiplexer. Inverse multiplexers
provide inverse multiplexing to transmit a single high-speed data
channel over one or many T1 (PRI) or E1 links.
Keep in mind that the examples given here discuss only a single
point-to-point call. Your capacity planning calculations must take
into account the total number of calls that you expect the network to
handle at one time, including multipoint calls. In addition, you will
need to factor in the requirements for any other traffic that the
network must handle.
For detailed information about capacity planning, please refer to the
Polycom white paper, H.323 Bandwidth Considerations, available
at www.polycom.com.
Call Processing Considerations
After documenting your network topology, you will need to define:
❑ Call processing architecture
❑ Gatekeeper identifier
❑ Default gatekeeper
❑ Call routing mode
Defining the call processing architecture is outside the scope of this
document. Please refer to the PathNavigator Deployment Guide in
the Documentation section at www.polycom.com for detailed
information on this topic.
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Gatekeeper Identifier
You will need to specify the gatekeeper identifier for each
gatekeeper being deployed. You must also define the maximum
number of endpoints that may be registered to each gatekeeper and
the maximum number of calls that each gatekeeper may handle at
one time.
Default Gatekeeper
An endpoint may register to a gatekeeper automatically or
manually. If endpoint registration is automatic, the registration
policy must specify a default gatekeeper — more than one
gatekeeper may exist on the network.
The registration policy defines the endpoints that may register to the
gatekeeper. It may allow any endpoint to register, or it may restrict
registration to specific endpoints or endpoints on specific networks.
Call Routing Mode
The default call mode may be direct or routed. In direct call mode,
the gatekeeper allows endpoints to send messages directly to each
other — the calls do not need to be routed through the gatekeeper.
If direct call mode is used, gatekeeper functionality (such as
simplified dialing, Conference on Demand, and alternate routing) is
not available, because the call bypasses the gatekeeper.
Developing the Dial Plan
The final element of the predeployment preparations is the dial
plan.
The dial plan defines how you set numeric aliases and service
prefixes. Numeric aliases look like telephone numbers. They allow
people to dial a short string of numbers like a telephone extension
or local telephone number instead of entering a full IP address.
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Service prefixes are short numeric strings that identify the services
being requested, such as call speed and zone.
An H.323 dial plan allows you to associate a numeric alias to the
network address of each H.323 entity. This is the calling plan that
you develop for H.323 deployments.
In large deployments, the dial plan also helps to manage resources
by segmenting user populations.
The dial plan defines the following elements of the deployment:
❑ Services — these include system services, gateway and MCU
services.
❑ Routing and policies — these include the default group policy
and least-cost routing tables.
❑ Network topology — includes private numbering plans (E.164
provisioning) or a public dialing plan (ISDN alias assignment).
❑ Neighbor gatekeepers — these are gatekeepers that manage
other H.323 zones within an organization.
❑ Addressing — specifies the requirements for assigning zone
and service prefixes and endpoint addresses.
Before you design a dial plan, you should document:
❑ Current telephone number dialing patterns
❑ Planned router locations
❑ Traffic routing requirements
Because no standard protocol defines the dynamic routing of E.164
addresses, H.323 dial plans must be configured statically and
managed on gateway and gatekeeper platforms.
To reduce the complexity of the configuration, confine H.323
addresses to one portion of the dial plan.
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A well-designed dial plan distributes the dial plan logic among the
gateways and gatekeepers. Try to keep the dial plan logic at the
highest component level — for example, allow the gatekeeper to
handle routing and fail-over decisions. This allows individual zones
to be added or modified without affecting other zones, so the
deployment is very scalable.
To assign gateways and gatekeepers:
1. Determine the area that your dial plan covers.
2. Determine what calling area(s) each gateway and gatekeeper
will be responsible for.
3. Determine the peak traffic volume, and determine how many
gateways will be required to handle anticipated increases in this
peak volume.
4. Logically group the gateways into zones to determine how
many gatekeepers you need. A zone can have one or many
gateways. The number of zones you define depends on the
gateways’ capacity and traffic.
5. Determine which gatekeeper should administer each zone.
Services
System services are defined within PathNavigator. They include
many of the functions that simplify the user’s interaction with the
Polycom Office. System services only work within a zone.
PathNavigator’s gateway and MCU services make it simple for the
user to dial out through a gateway or dial into a conference. For
these services to be effective, the gateway service information such
as call speed, service and zone prefixes, and device capabilities must
be registered with PathNavigator.
Gateway and MCU services are defined in both PathNavigator and
the MGC platform itself. It is critical that the prefixes are exactly the
same in each system.
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Administration, Policies, and Routing
Administration Plan
The videoconferencing administration plan allows the system
administrator to manage user permissions and network policies.
Your plan should define:
❑ Superusers
❑ Administrators
❑ Permissions for groups and for individuals
❑ Policies such as bandwidth allocation per user
Default Group Policy
A group policy allows you to define dialing properties, services, and
bandwidth management parameters for all members of a defined
group without having to configure these individually for each user.
The default group is normally all users, and the policy settings for
this group are the default group policy. The administrator sets
policy, services, and other settings for this and other groups.
Least-Cost Routing
Least-cost routing enables calls that originate inside the
organization to be routed in the manner that incurs the lowest
expense. In order for least-cost routing to be implemented, the
network topology must be defined — the gateways on each
network, WAN link capacities, and other factors.
Each gateway has an associated least-cost routing table which is
created by the administrator. The table consists of dial string entries
(country code, area/city code, etc.) and cost. For calls between
networks, the tables are compared to identify the least-cost route for
the call. Least-cost routing will not be used if the least-cost route
cannot be identified, if the required resources are unavailable, or if
bandwidth limitations exist on the WAN link.
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If your organization has special rate plans, those should be
incorporated into the least-cost routing tables.
Network Topology
You will need the network topology information described in
LAN/WAN Considerations on page 52 when you design your dial
plan and configure PathNavigator to manage your video network.
If the network is physically changed, you will need to update
PathNavigator’s network information so that it can manage the
video network effectively.
PathNavigator provides the means for you to assign ISDN numbers
to endpoints. The way numbers are assigned depends on your
network:
❑ E.164 provisioning — Choose E.164 provisioning if you are
using private numbers.
❑ ISDN alias assignment — If you assign ISDN numbers to
endpoints, then the ISDN ranges need to be provided to the
gatekeeper. These numbers must be coordinated with your local
ISDN provider as these numbers cannot be self-populated.
Assigning numbers that are not in your domain will result in
failed calls when users outside the organization try to access
users within the organization with self-populated numbers.
❑ Automatically assigned numbers — PathNavigator can
automatically assign direct inward dial (DID) numbers or
gateway extensions. You cannot automatically assign both
types of numbers on the same network.
Neighbor gatekeepers
Neighbor gatekeepers allow for the distribution of the workload
across logical boundaries within the organization. This enables
more efficient use of the network by limiting communication across
WAN links. When a call originates in one gatekeeper’s zone and that
gatekeeper is unable to resolve the dialed address, it will be
forwarded to the neighbor gatekeepers for resolution.
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Addressing
The addressing components of an H.323 dial plan are:
❑ Gatekeeper zone identifiers or prefixes
❑ Entity addressing
❑ Terminal aliases (include numeric and alphabetic aliases)
❑ System Services
❑ MCU service prefixes
❑ Gateway service prefixes
Each H.323 entity must have at least one network address (transport
address). The network address uniquely identifies the H.323 entity
on the network. It is typically a TCP/IP address.
If the entity is a terminal, it may also have one or more alias
addresses associated with it.
Zones and Zone Prefixes
A zone is the collection of all terminals, gateways, and MCUs
managed by a single gatekeeper. A zone may be independent of
network topology, and may include multiple network segments
which are connected by routers and other devices.
When using multiple zones (multiple gatekeepers), zone identifiers
must be used. Zone identifiers are analogous to area codes.
Specifying local zone prefixes enables the gatekeeper to resolve
addresses sent by neighbor gatekeepers. The local zone prefix
identifies this gatekeeper. Some gatekeepers do not strip prefixes
before the address when sending out a request for address
resolution. These addresses cannot be resolved without the local
zone prefix. The local zone prefix needs to be removed from the
dialed address in order to match the address to a registrant.
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Table 3-3. Zone Identifiers and Neighbor Gatekeepers
Milpitas
Austin
Atlanta
Prefix
gatekeeper
gatekeeper
gatekeeper
Local zone prefix
408
512
770
512
408
770
770
408
512
Neighbor gatekeeper 1 prefix
Neighbor gatekeeper 2 prefix
If the local zone prefixes are configured, requests from neighbor
gatekeepers with prefixes that match the local zone prefix will be
resolved. All other calls will be rejected.
Entity Addressing
An entity must have a network address and may have alias
addresses. These are defined as follows:
❑ Network address: This address relates to network transport. It
is usually a TCP/IP address. This address can either be
automatically issues via dynamic host configuration protocol
(DHCP), or statically assigned by the administrator from a pool
of available addresses.
❑ Alias address: This may be a telephone number (private
number or public E.164 address) or an H.323 identifier, which is
an alphabetic string such as a username, email-like address, or
H.323 URL.
❑ LAN host name: Any system connected to a LAN must have a
LAN host name (netBIOS name) defined. This is sometimes
called the computer name.
An alias address may represent a terminal or it may represent a
conference. Alias addresses must be unique within a zone. For
example, within a zone there may only be one entity that uses the
alias 3721005.
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Rules for Assigning Prefixes and Numeric Aliases
In assigning prefixes and numeric aliases, it is critically important to
observe certain rules:
❑ MCUs and gateways provide services, so they must have
service prefixes assigned to them. Each service must have its
own prefix. For example, an MCU or gateway will have a
separate service prefix for each call speed that it provides.
❑ MCU and gateway services work across zones only if used in
conjunction with a manually entered zone prefix.
❑ If the system uses more than one gatekeeper, each gatekeeper
must have a zone identifier prefix.
❑ The numeric aliases for terminals and conferences may begin
with the same initial digit(s) as any service prefix or zone
identifier prefix. This is because PathNavigator’s parsing rule is
that aliases are checked first and service prefixes are checked
last.
❑ The numerals used for service prefixes may not start with an
existing service prefix. Example: If 9 is selected as your access
simplified dialing system service, then you may not create MCU
or gateway service prefixes that begin with 9.
❑ Local zone prefixes are not considered local service prefixes.
Therefore, if you have a local zone prefix of 408, you may still
use 40 to designate a service.
Service Plans
A service plan assigns numeric prefixes to services on the network.
Gatekeepers use service prefixes to route terminal requests to the
appropriate provider of services. Services on the network are
processed by media processors on the network. Within H.323,
media processors are MCUs, gateways, and proxies. A service prefix
is analogous to the digit 9 that you must dial to request an outside
line from a PBX system; the system’s response of connecting you to
the requested outside line would be the service in this example.
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System Services
System services include the following:
❑ Conference on demand
❑ Call forwarding: set forward busy, set forward no answer, and
set forward unconditional.
❑ Access simplified dialing
❑ Join or leave hunt group
System services only work within a zone. They do not work across
zones.
Gateway and MCU services are defined in both PathNavigator and
the MGC platform itself. It is critical that the prefixes are exactly the
same in each system.
ISDN Requirements
The following paragraphs describe the requirements for ISDN PRI
and BRI interfaces.
ISDN PRI
The PRI network interface is available for the ViewStation FX and
VS4000.
Note
Polycom ISDN PRI modules include an internal CSU for the PRI
interface. The system’s internal CSU can be disabled via the Admin
Setup.
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The PRI T1 needs to be provisioned for the ViewStation FX and
VS4000 systems as follows:
Table 3-4. ISDN PRI Requirements
Line settings
ESF/B8ZS (default)
Extended Super Frame B8ZS is modem standard for
T1/PRI line encoding and framing
Line termination
type
CPE (user side) only
The required termination is built into the system and
most access switches
Supported PRI
switch protocols
AT&T 4ESS, AT&T 5ESS, NI-1, NI-2, Siemens,
Nortel DMS 100, and Nortel 250
These are standard protocols for North America
Number of
channels
23 B-channels dialable at 64 or 56 Kbps, and one D
channel
Ensure that you have 64 Kbps clear channel service
1 (single PRI)
Number of
network
interfaces
Line build-out
modes
DSU+CSU (0 to –22.5dB attenuation), DSU-only
(DSX 0-665 feet)
Physical distance is offset by the settings in the user
interface
Clocking
Must be derived from the external network or the
PBX
Terminal
Endpoint ID
(TEI)
0-63
This identifies the PRI endpoint; the common default
is 0
Numbering
One local directory number per interface (23
channels)
D-channel slot
number
24
Included to verify where the D channel is; this is
where additional diagnostic information resides
Call-by-call
service codes
Values 0-31 service codes for GVPN/PN/UPN
network-specific services
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The PRI direct from the telephone service provider should support
both data and voice for Polycom’s voice add-on capability of
systems.
Determining Usage
To get the best rate of return from PRI lines, they should be used as
much as possible. To do this, look at the data and video traffic as a
whole. Establish a reasonable ratio between the total bandwidth
required if every device is in use and the number of lines provided.
A ratio of 10:1 is fair for general use. If you use a PBX, access switch,
or other data communications unit, the total number of lines into
your customer premise equipment (CPE) can be allocated by
channel to your equipment, according to the bandwidth required at
any given time.
PBX Network Configuration
The PBX or other CPE that will be providing the ISDN PRI interface
to the system must be able to provide a clock signal.
Other than the clocking requirement, the rest of the ISDN PRI
provisioning on the PBX is very similar to what would be requested
of an outside ISDN provider.
ISDN BRI
All Polycom ISDN BRI interfaces are S/T-loop. ISDN BRI lines
coming direct from a Telco are U-loop, so if your system is not
behind a PBX or other private network, you must connect the BRI
interface to BRI line(s) through an NT1 device capable of supporting
multiple BRI lines.
NT1 Devices that you may order through Polycom:
❑ Single NT1 (2200-08406-001 or NT1)
❑ Triple NT1 (2200-08406-003)
❑ Quad NT1 (2200-08406-004 or NT1-QUAD)
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Peripheral Link
ISDN BRI
S/T-loop
ISDN BRI
U-loop
Quad BRI
QuadNT1
(May not be needed)
ISDN
Figure 3-2. Network Configuration (No PBX)
PeripheralLink
ISDN BRI
S/T-loop
ISDN BRI
U-loop
ISDN PRI or
Multiple BRI
Quad BRI
ISDN
Quad NT1
(May not be needed)
PBX
Figure 3-3. Network Configuration (Behind PBX)
For ISDN BRI lines to be used from a PBX to a videoconferencing
system, you must do these things in addition to meeting the other
requirements.
❑ Determine the interface type of the ISDN BRI network module
in the PBX (U-loop or S/T-loop). This will determine whether or
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not you need an NT1 device between the PBX and the ISDN BRI
interface of the videoconferencing system.
❑ If the ISDN BRI network module in the PBX is S/T-loop, there
is a 500-foot limitation with S/T-loop ISDN. The module may
still require a special jack with a resistor.
❑ Ensure that the ISDN PRI or multiple BRI lines, on the public
side (from the Telco) are provisioned to carry data traffic as if it
was connected directly to the videoconferencing systems as
discussed in the appropriate sections above. Voice can be added
but is not required. Items such as switch protocol, numbering
plans, etc. are not necessary as those are determined by the PBX
connecting to the ISDN lines from the Telco side.
❑ Ensure that the ISDN BRI lines’ channels that connect to the
videoconferencing systems are mapped appropriately to the
channels on the public network side of the PBX that connects to
the Telco’s ISDN cloud. This is critical also for the success of the
inbound calls from systems outside the company to ensure that
the ISDN number, provided to the videoconferencing system by
the PBX, is routable in the public ISDN cloud and through the
PBX to the appropriate videoconferencing system.
❑ The ISDN BRI lines between the PBX or other CPE and the
videoconferencing system(s) should be provisioned in the same
way as ISDN BRI lines that would be connected the system(s)
directly from a Telco, as described below.
The following requirements are common to all BRI deployments.
❑ ISDN BRI lines need to be configured in the same way as one of
the following two Bell Core equivalents:
Capability Package R: Circuit Switched Data on 2 B channels.
Data capabilities include Calling Number Identification. No
voice capabilities are provided.
Capability Package S (recommended if system is not behind a
PBX): Alternate Voice/Circuit Switched Data on 2 B channels.
Data and voice capabilities include Calling Number
Identification.
❑ Both B channels must carry circuit-switched videoconferencing
data (voice can be added but is not required).
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❑ The ISDN BRI service must allow videoconferencing calls to be
dialed on either B channel or on both simultaneously.
❑ The D channel should not permit X.25 packet data.
❑ The ISDN BRI service must be configured as Terminal Type A.
❑ The ISDN BRI service must support automatic Terminal
Endpoint Identifiers (TEIs).
❑ The ISDN BRI service must be tariffed and available from the
customer’s local central office.
DCP (Digital Communication Port) On Lucent Definity ECS
Network Configuration
The Lucent Definity G3 supports DCP connectivity on V2 and
later. ViewStation DCP-based systems support the Lucent Definity
DCP 2-wire configuration, and requires the DCP ports to be
programmed as PDM. No NT1 devices are required with
DCP-based systems.
Typically, 4-pair Cat-5 cabling is used between the Definity ECS and
the network interface module of the ViewStation, terminated on
RJ-45 jacks.
Installation
You can install ViewStation systems in the same room as the Quad
BRI network interface module, or you can connect to the Quad BRI
network interface module through the building’s wiring.
You can locate the system up to 250 feet away from the Quad BRI
network interface module, with the following provisions:
❑ If the distance from the system to the Quad BRI network
interface module is less than 50 feet, no additional power is
required.
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❑ If the distance is between 50 and 250 feet, you must use a 9-volt
AC/DC transformer to boost power (such as the Digi-Key
#T405-ND). Connect the transformer to the Quad BRI network
interface module.
❑ RJ-45 jacks, connected to 110 blocks or 66 blocks, should be
installed in the wiring closet. You can then connect these jacks
to the Quad BRI network interface module with the supplied
RJ-45 cables.
Configuration
The Polycom DCP-based systems connect to the Definity
Communications server through 2-wire digital communications
ports (DCP).
Note
Digital Trunk Services are required.
DCP-based systems require up to four 2-wire DCP ports on the
Definity server. These ports should reside on the same digital
station card in the system. These DCP ports are set up as personal
data modules (PDMs).
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The following tables show how the data modules should be
configured in the Lucent Definity PBX administrative console. Ports
3 and 4 are configured identically with unique extensions for each
module, and different port numbers.
Table 3-5. Example Configuration, Data Module 1
Data Extension
6761
Type
pdm
Port
01A0001
ITC
unrestricted
Name
Polycom Channel 1
COS
1
COR
40
1
TN
BCC
1
Remote Loop-Around Test?
Secondary data module?
Connected to
n
n
dte
Table 3-6. Example Configuration: Channel 1, Secondary Data Module 2
Data Extension
6762
Type
pdm
Port
01A0001
ITC
unrestricted
Name
Polycom Channel 1
COS
1
COR
40
1
TN
BCC
1
Remote Loop-Around Test?
n
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Table 3-6. Example Configuration: Channel 1, Secondary Data Module 2
Secondary data module?
Connected to
n
dte
Next, you must configure any required hunt groups with a direct
inward dialing (DID) numbers, or local directory numbers. This
enables other systems to call your system.
Once you have configured the hunt groups, hook up the DCP ports
to the system and follow the appropriate system installation
procedures. Use the data module extension numbers for the port
configurations on the system, and the DID/LDN number for the
system’s main number.
Note
If you use Equal Access and a long distance reseller, the long
distance reseller is probably not providing full 64 KBPS connectivity
on long distance calls. In this case, you must set up the Definity to
send long distance video calls through a long distance carrier that
provides full-bandwidth connections.
You must configure a special COR for the system that uses a
different ARS partition group. The ARS partition group will direct
all long distance calls through separate routing patterns that have a
KICK code configured. This KICK code tells the local carrier which
long distance reseller to use and direct the call accordingly.
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Site Considerations
When you select a site for videoconferencing equipment, consider
the following factors:
Table 3-7. Site Considerations
Factor
For best results
Access to
required
Ensure that the equipment will be within 6 feet (1.8 m)
of power and network connections.
connections
Ensure that cables are routed in a way that does not
inconvenience people who use the room.
Room lighting
Ensure that the camera will normally point toward an
area that is well-lit but not exceptionally bright. Lighting
should be diffuse to prevent harsh shadows.
If there is a window in the room, ensure that the camera
does not normally point toward it. Backlighting makes
the speaker appear in silhouette.
Room color
and decor
The camera will perform best if the room furnishings
are medium to dark in color and do not have polished
or reflective surfaces.
Ensure that the camera normally points toward an area
that is of a medium shade and does not contain
detailed, patterned, or brightly-colored elements. For
example, a blue or gray wall provides a more effective
backdrop than a bright painting.
To prevent autofocus problems, place an object
somewhere near the center of the camera’s default
position.
Items in
camera range
Ensure that no confidential material can be
inadvertently disclosed to callers. For example, ensure
that white boards in the conference room are not used
for engineering sketches.
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Table 3-7. Site Considerations (Continued)
Factor
For best results
Acoustics and
background
noise
Ensure that there is no audible echo in the room where
the camera and microphone(s) will be installed.
Carpeting, drapery, and upholstered furniture all help
to reduce echo problems. Non-rectangular rooms have
less echo than standard conference rooms.
Microphone
placement
Refer to the documentation for the specific equipment
model for information on where to place the
microphone(s).
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Predeployment Worksheet
This worksheet will help you get the information you need to install
videoconferencing systems on your company’s LAN computer
network. Complete this worksheet before you start the installation.
Once you have this information, refer to this worksheet as needed.
To use your system for LAN-based system management and
LAN-based software upgrades you need to know the type of
addressing your network uses:
•
DHCP (Dynamic Host Configuration Protocol) (Recommended for LAN
calls)
•
Fixed IP address (Recommended for LAN calls)
IP address for the system
Subnet Mask
_______._______._______.______
_______._______._______.______
_______._______._______.______
LAN Gateway
Check the type of configuration the system uses. Check only one:
•
•
Use DNS Server Configuration
Use WINS Server Configuration
Host
Domain
PrimaryWINS
Primary DNS
Secondary WINS
Secondary DNS
_______._______._______.______
_______._______._______.______
_______._______._______.______
_______._______._______.______
To ready your system for LAN-based videoconferencing, you also
need to know:
Gatekeeper DNS name or IP
address (if necessary)
Alias for the videoconferencing
system
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Extension (Terminal ID or E.164
number) for the
videoconferencing system
SNMP Information (if necessary)
If you intend to ready your system for remote management via Simple
Network Management Protocol (SNMP), you also need to know:
IP address for the network
management station
_______._______._______._______
SNMP community string
Dialing Directory Information (if
necessary)
If you intend to use central dialing directories with your
videoconferencing system(s), you need to know:
Central Directory (LDAP) Server
URL or IP address
Port number (default is 389)
Directory service root
Server type
Account password (if you want to
auto-publish the account name)
Document Server (if necessary)
If you intend to use the Document Server option, you need to know:
DNS name or IP address
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Installing Videoconferencing
Systems
This chapter provides installation instructions for the
ViewStation EX, ViewStation FX, and VS4000 and their network
interface modules.
This chapter covers the following topics.
Topic
Page
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The Deployment Process
The diagram below summarizes the tasks involved in the
deployment process. This chapter assumes that the appropriate
products have been ordered, and that you have done the
appropriate predeployment tasks.
Pre-deployment
Deployment
Post-deployment
Identify the site's
communication needs
Place test calls:
Install PathNavigator and
configure it without
configuring MGC services
and DID
‰
‰
‰
‰
IP to IP
IP to ISDN
ISDN to IP
ISDN to ISDN
Determine the site's...
‰
‰
Network topology
Bandwidth
requirements
Policies
Dial plan (includes
services plan)
Install MGCManager and
use it to configure MGC
‰
‰
In PathNavigator, configure
MGC services and DID
Install GMS with GDS
Install WebCommander
Configure GMS and
WebCommander
Install and configure
endpoints
Figure 4-1. The Deployment Process
This chapter discusses installing and configuring endpoints.
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Installation Procedures
For basic system installation, please refer to the installation
instructions in the appropriate User Guide and the QuickStart cards.
Installing Network Interface Modules
The ViewStation EX, ViewStation FX, and VS4000 may be
purchased with either of these network interface modules:
❑ Quad BRI
❑ V.35/RS-449/RS-530
In addition, PRI T1 and E1 network interface modules are available
with the ViewStation FX and VS4000.
The diagram below shows a general view of how network interface
modules are installed.
Auxiliary device
Network
interface
module
ViewStation EX,
ViewStation FX,
or VS4000
(such as NT-1 if
using Quad BRI,
CSU if using PRI)
ISDN
network
External power
supply
(if using PRI)
Power
source
UPS
Figure 4-2. Installing Network Interface Modules
Quad BRI Network Interface Module
This section provides information about installing the Quad BRI
network interface module. For performance specifications, cable
diagrams and pinouts, and other technical information, please refer
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NT-1 Device
The Quad BRI network interface module requires an S/T interface.
If your site does not use an internal telephone system (PBX), you
must connect the Quad BRI module to the ISDN line(s) through a
network termination (NT-1) device, which provides the S/T
interface.
Cables Used with the Quad BRI Network Interface Module
The network cables are standard CAT5 cables. If you are connecting
to a PBX, you may need a crossover cable.
Installation
To connect the Quad BRI network interface module to the
system:
1. Make sure your system is turned off.
2. Connect the peripheral side of the Quad BRI network interface
module to the system using the supplied network interface
cable. This cable is color-coded blue on one end, green on the
other.
Figure 4-3. Quad BRI Network Interface Module (Peripheral Side)
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3. Connect the network side of the Quad BRI network interface
module to the NT-1 device or to the ISDN network, as
appropriate.
Figure 4-4. Quad BRI Network Interface Module (Network Side)
4. If you are using an NT-1 device, connect it to the ISDN network.
You are now ready to power on and configure the system.
Installing a PRI Network Interface Module
This section provides information about installing the PRI network
interface module. This module is available for the ViewStation FX
and VS4000.
For performance specifications, cable diagrams and pinouts, and
other technical information, please refer to Technical Information,
External Power Supply
If the PRI network interface module loses power, it creates an alarm
condition that may result in the service provider disabling the line.
The PRI network interface must be connected to the external 12-volt
DC power supply so that it does not lose power when the system is
powered off. Connect the external power supply to an
uninterruptable power supply (UPS) if possible.
The external power supply is mandatory for installations in Europe
and is strongly recommended where not mandatory.
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You must use an external power supply if you use the internal CSU
capability of the PRI T1 network interface module.
Channel Service Unit
In North America, the PRI T1 network interface module can be
connected to an external Channel Service Unit (CSU). The CSU
isolates the PRI from the network, and continues to transmit a signal
to the network even if the PRI network interface module loses
power or is disconnected. This prevents the line from being
deactivated. A CSU is normally used only when the PRI network
interface module is connected directly to a telephone company
switch, not a PBX.
Outside North America, CSUs are not used with PRI network
interface modules.
If you use an external CSU, connect an RJ-45 cable from the CPE
equipment side of the CSU to the PRI network interface module.
ADTRAN Atlas 800 Plus E1 Module
Firmware
If you are using an ADTRAN Atlas 800 Plus E1 Module, it must use
firmware version G03b or later.
Channel Restarts
Wait two to three minutes after the endpoint has been powered on
and the PRI status icon has turned green before making or receiving
calls with the ADTRAN Atlas 800 Plus. This allows time for channel
restarts on the ADTRAN Atlas 800 Plus E1 module. If you place a
call before channel restarts are complete, a Network Congestion
message appears on the system. Incoming calls during this time will
receive a Far Site Busy message.
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If You Are Connecting to a PBX
❑ Some PBXs require a crossover cable.
❑ The PBX must provide the clock signal and act as the network
side for layers 1, 2, and 3.
❑ QSIG signaling (PSS1) is not supported. However, a PRI
network interface module can be connected to a PISN through a
gateway using ETSI DSS1 signaling.
Cables Used with the PRI Network Interface Module
The following cables may be used with the PRI network interface
module.
❑ Peripheral link cable: The peripheral link cable does not fit into
a standard RJ-45 network port. You can, however, use it to
connect any Polycom network interface module to the system.
❑ PBX crossover cable: An RJ-45 crossover cable may be required
when connecting the PRI network interface module to a PBX or
other third-party network access device.
❑ PRI Cable extension: You can purchase a cable adapter kit to
extend the distance between your system and the PRI network
interface module.
❑ 75 Ω coaxial adapter: The PRI E1 line termination is 120 Ω. In
some areas, however, the E1 network connection is via a 75 Ω
coaxial cable. The PRI network interface module does not
directly support this, but you can obtain passive adapter
devices from various vendors.
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Installation
To install the PRI network interface module:
1. Ensure that the system is powered off.
2. Connect peripheral side of the PRI network interface module to
peripheral side of the PRI network interface module.
Port
(not used)
Input Port
LEDs
Figure 4-5. PRI Network Interface Module (Peripheral Side)
3. Connect the 12-volt DC power supply to the PRI network
interface module and then to the UPS or wall outlet.
4. Connect the PRI network interface module to the ISDN
network.
Network
Connector
LEDs
Figure 4-6. PRI Network Interface Module (Network Side)
You are now ready to power on and configure the system.
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Installing a V.35/RS-449/RS-530 Network Interface Module
Cables Used with the V.35/RS-449/RS-530 Network Interface Module
The network interface module connects to the system using a cable
that is not interchangeable with standard RJ-45 to RJ-45 cables.
The following optional cables used to connect the
V.35/RS-449/RS-530 module to the DCE are available from the
Polycom Web store:
❑ V.35 “Y” cable—HD-44M to DB-25M/RS-366 and M34
“Winchester” V.35
❑ RS-449/422 “Y” cable—HD-44M to DB-25M/RS-366 and
DB-37M/RS-449/422
❑ Ascend cable—HD-44M to HD-44M
Cable for Direct Connect. Direct Connect users can choose to have
the local system answer a video call when it detects data from a
remote site, or hang up when it detects lack of data from the remote
site. This Direct Connect signal lead would be in addition to existing
V.35/RS-449/RS-530 signal leads that control answer/hang up call
states.
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Installation
To install V.35/RS-449/RS-530 Network Interface Module:
1. Make sure the system is turned off.
2. Connect the peripheral side of the network interface module to
the system. Refer to Figure 4-7.
Port (not used)
12 VDC Connector
(not used)
Input Port
LEDs
Figure 4-7. V.35/RS-449/RS-530 Network Interface Module (Peripheral
Side)
3. Connect the network side of the network interface module to
connect it to port 1.
LEDs
Figure 4-8. V.35/RS-449/RS-530 Network Interface Module (Network Side)
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Note
If your DCE does not use dialing, do not use the RS-366 (DB-25M)
connector.
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Network Configuration
The following paragraphs give information about configuring the
ViewStation EX, ViewStation FX, and VS4000 systems for the ISDN
network.
On a PRI T1 Network: Configuring the CSU
If you use an external CSU, you must specify the following
information on the PRI Setup screen (System Info > Admin Setup
> Video Network > IMUX > PRI Network > PRI Setup):
1. In the CSU field, select External.
2. In the Line Buildout field, select the length of the cable that
connects the PRI network interface module to the CSU.
You can also configure the T1 PRI network interface module to act
as a CSU. To do this, the external power supply must be connected.
To use the T1 PRI network interface module as an internal CSU, you
must specify the following information on the PRI Setup screen
(System Info > Admin Setup > Video Network > IMUX > PRI
Network > PRI Setup):
1. In the CSU field, select Internal.
2. In the Line Buildout field, select an appropriate dB setting. The
telephone company usually determines the dB value by
measuring the characteristics of the line. If an external CSU was
previously used, use the setting selected for that CSU.
Otherwise, start with 0.
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Firewall and NAT Issues
A firewall protects an organization’s network by controlling data
traffic from outside the network. Different types of firewalls use
different techniques to provide network security, but unless the
firewall is designed to work with H.323 videoconferencing
equipment, it will prevent successful videoconferencing because it
is designed to prevent unsolicited data from entering the network.
From a functional perspective, it blocks incoming calls, and it
prevents outgoing calls by blocking the call signalling from the
external endpoint when the two endpoints begin the signal
transaction required to set up the call.
Network Address Translation (NAT) network environments use
internal IP addresses for the devices within the network, while
using one external IP address to communicate with the outside
world (Wide Area Network). The NAT router accepts incoming data
and forwards it to the appropriate endpoint. This provides a degree
of network security, as the internal IP addresses do not provide
access from outside the network.
Firewalls and NAT are often used together.
Configuring the System to Operate Behind a Firewall
To make calls through a firewall, you must open the following ports
and assign them to the videoconferencing system:
Table 4-1. Firewall Ports to Open for Videoconferencing
Port
Used for
389 (TCP)
1503 (TCP)
1718 (UDP)
1719 (UDP)
1720 (TCP)
1731 (TCP)
ILS registration
Microsoft NetMeeting T.120 data sharing
Gatekeeper discovery
Gatekeeper RAS (must be bidirectional)
H.323 call set-up (must be bidirectional)
Audio call control (must be bidirectional)
3230-3235
(TCP/UDP)
Signalling and control for audio, call, video, and
data/FECC
3603 (TCP)
Web interface
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Configuring the System to Operate Behind a NAT
The System is behind a NAT option allows the user make calls
outside the internal network.
At this time, it is not possible to make videoconferencing calls
within the internal network when the System is behind a NAT
option is selected. To make videoconferencing calls within the
network, users must deselect the System is behind a NAT option
before making the call.
1. Determine the NAT’s external (WAN) IP address.
2. Determine the IP address of the system. This can be found in the
System Information screen.
3. Go to Quality of Service and Firewalls screen (System Info >
Admin Setup > LAN/H.323 > H.323 > QOS).
4. Select Use Fixed Ports.
5. Select System is behind a NAT.
6. Enter the NAT’s external IP address into the NAT outside
(WAN) address field.
7. Write down the Fixed TCP and UDP port numbers displayed on
this screen. The default values are:
TCP: 3230 to 3231
UDP: 3230 to 3235
8. Reset the firewall’s fixed ports from step 4 to be permanently
open, and redirect them to the IP address of your system.
9. To accept incoming calls, open and redirect port 1720 to the IP
address of your system.
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Connecting the System to a PC
In some situations you may want to connect a laptop directly to the
ViewStation EX, ViewStation FX, or VS4000. This allows you to:
❑ Update software on a system that is not connected to a LAN.
❑ Use IP-based functions such as PolySnap or Visual Concert PC
with a system that is not connected to a LAN.
❑ Upload Microsoft PowerPoint files to the system if you do not
have a Visual Concert data collaboration unit.
❑ Connect a PC to the LAN through a LAN-connected system if
there is only one LAN connection in the room.
This section explains how to set up and connect your PC to a
ViewStation EX, ViewStation FX, or VS4000.
PC Requirements
The system requirements for connecting a PC to the system are:
❑ Microsoft Windows 95, 98, 2000, or NT
❑ Desktop PC connected to a LAN or laptop with a 10 Mbps or 100
Mbps Ethernet LAN card
❑ Ethernet cable
❑ Microsoft Internet Explorer 4.0 or higher (recommended) or
Netscape 4.5 or higher
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Connecting the PC to the LAN Through the ViewStation EX,
ViewStation FX, or VS4000
Do this if you need to use the system to provide LAN connectivity
for your PC.
1. Ensure that the PC and the system are both powered off.
2. Connect the system to the LAN using the LAN connector and
cable.
3. Connect the blue RJ-45 cable into the blue PC port on the back
of the system and to the Ethernet port on your computer.
4. Power on the system.
5. Select System Info > Admin Setup > LAN/H.323 >
LAN/Intranet to configure the system’s LAN/H.323 settings.
The LAN & Intranet screen appears.
6. If your LAN does not use DHCP, go to step 9.
7. If your LAN uses DHCP, select Client in the DHCP field to
enable the system to obtain an IP address from a server on your
network.
8. After you have changed the DHCP settings, a message lets you
know that the system will have to be reset in order to save the
changes. Select Yes. Another message informs you that the
system is about to restart.
9. Select the System Info icon to go to the System Information
screen. Your system's IP address should appear in the IP
Address field.
You have finished this procedure. The rest of this procedure
applies to LANs that do not use DHCP.
Note
If the IP address field displays “...waiting...,” the system did not get
an address from the LAN. Check the LAN connection on the back of
the system and try again. When the system is properly connected,
the green light on the connector is illuminated and the orange light
blinks.
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10. Select Off in the DHCP field and manually enter the IP address,
subnet mask, and gateway address provided by your system
administrator.
11. Turn on your PC and make sure it is properly configured.
12. After you have changed the DHCP settings, a message lets you
know that the system will have to be reset in order to save the
changes. Select Yes. Another message informs you that the
system is about to restart.
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Connecting the System to a PC off the LAN
Do this if you need to use IP-based functions (display desktop, do a
software update, use PolySnap) on a system that is not connected to
a LAN.
Caution
Your system must beconfigured as a DHCP server for this
procedure. Do not use this procedure if the equipment is connected
to a LAN.
Note
To set your system as a DHCP server, the option Allow System to
be a DHCP Server must have been enabled during a software
upgrade of your system.
1. Ensure that the PC and the system are both powered off.
2. Connect the blue RJ-45 cable into the blue PC port on the back
of the system and to the Ethernet port on your computer.
3. Power on the system and the PC.
4. Select System Info > Admin Setup > LAN/H.323 >
LAN/Intranet on the ViewStation.
5. Press the Up arrow on the remote control to go to the DHCP
field and set it to Server. The system displays the message “The
system will now issue IP addresses to other PCs on the LAN.
Continue?”
Caution
Do not use this setting if your ViewStation is on a LAN. If you
do, the ViewStation will provide IP addresses to the other
computers on the LAN even though the LAN already has a
DHCP server. Your IT personnel and system administrators will
have to repair any network problems this causes.
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6. Select Yes if you are absolutely certain you want to set your
system as a DHCP server.
7. Press Menu. The following message will appear: “Power must
be reset to save changes. Continue?” Select Yes.
8. Your ViewStation will automatically restart. It will now act as a
DHCP server and will provide IP addresses to one or more PCs.
9. Go to the System Information screen. You should see an IP
address of 1.1.1.2, which is the IP address of your ViewStation.
If your PC uses Windows 2000, go to step 14.
10. For Windows 95, Windows 98, or Windows NT 4.0, right-click
the Network Neighborhood icon, and then right-click
Properties.
11. When the Network box appears, select the Configuration tab,
then double-click TCP/IP.
12. Select the IP Address tab. Make sure the Obtain an IP Address
Automatically button is selected. Then click OK.
13. Go to step 18.
14. For Windows 2000, right-click the My Network Places icon, and
then right-click Properties.
15. In the Network and Dial-up Connections window, right-click
Local Area Connection, and select Properties.
16. In the Local Area Connection Properties window, double-click
Internet Protocol (TCP/IP).
17. In the Internet Protocol (TCP/IP) Properties window, make
sure the Obtain an IP Address Automatically button is
selected. Then click OK.
18. Restart your PC.
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Placing Test Calls
To verify that you have installed the endpoint equipment correctly,
test each unit as follows:
❑ Place an ISDN call from the unit.
❑ Place an IP call from the unit.
❑ From a suitable endpoint, place an ISDN call to the unit.
❑ From a suitable endpoint, place an IP call to the unit.
If you are able to complete all calls successfully, the unit is ready for
use.
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Multiple-Monitor Mode
The following table describes each monitor’s expected behavior in
systems using one to four monitors.
Table 5-1. Expected Display for Each Monitor
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
Booting
PIP
1
2
3
4
None
None
Logo
Color bar
Logo
Color bar
Logo
Color bar
Logo
Color bar
JPEG
Test pattern
Single-monitor mode, no VGA
Not in a call: main/UI Near
Not in a call: graphic None
Main
Graphic
Far
Point-to-point call:
call connect
Near
Point-to-point call:
main/UI
Far
Main
Point-to-point call:
graphic
Far
Graphic
Main
Multipoint call:
main/UI
Last
talker
Multipoint call:
graphic
Last
talker
Graphic
Multipoint call:
discussion mode
None
None
Near
Cont.
presence
Multipoint call:
presentation mode
Cont.
presence
Multipoint call:
Last
full-screen mode
talker
Single-monitor mode, VGA
Not in a call: main/UI Near
Not in a call: graphic None
Main
Near
No change
Graphic
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Point-to-point call:
call connect
Near
Far
No change
No change
Graphic
Point-to-point call:
main/UI
Far
Main
Far
Point-to-point call:
graphic
Near
Multipoint call:
main/UI
Last
talker
Main
Far
No change
Graphic
Three-way call:
graphic
Near
None
None
None
Near
None
Four-way call:
graphic
Cont.
presence
No change
No change
No change
No change
None
Multipoint call:
discussion mode
Cont.
presence
Multipoint call:
presentation mode
Cont.
presence
Multipoint call:
full-screen mode
Last
talker
Sleep mode
None
Two-monitor mode, no VGA
Not in a call: main/UI Near
Not in a call: graphic None
Main
Near
Far
Near
Graphic
Near
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Far
Point-to-point call:
graphic
Near
Graphic
Multipoint call:
main/UI
Last
talker
Main
Last
talker
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Multipoint call:
graphic
None
Cont.
presence
Graphic
Far (2)
Far (2)
Far (2)
Near
Three-way call:
discussion mode
Near
Near
Near
None
None
None
Far
Far
Far
Three-way call:
presentation mode
Three-way call:
full-screen mode
Four-way call:
discussion mode
Cont.
presence
Four-way call:
presentation mode
Cont.
presence
Near
Four-way call:
Last
Near
full-screen mode
talker
Two-monitor mode, VGA
Not in a call: main/UI Near
Not in a call: graphic None
Main
Near
Far
Near
None
Near
Graphic
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Far
Point-to-point call:
graphic
None
Near
Graphic
Graphic
Multipoint call:
main/UI
Last
talker
Main
Far
Last
talker
Three-way call:
graphic
Near
Near
Near
Far (2)
Far (2)
Far (2)
Three-way call:
discussion mode
Far
Three-way call:
Far
presentation mode
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Three-way call:
full-screen mode
Near
Far
Far (2)
Four-way call:
graphic
None
None
None
None
Cont.
presence talker
Last
Graphic
Four-way call:
discussion mode
Cont. Last
presence talker
Cont. Last
Four-way call:
presentation mode
presence talker
Four-way call:
Last
Near
full-screen mode
talker
Three-monitor mode, no VGA
Not in a call: main/UI None
Not in a call: graphic None
Main
Near
Far
Near
None
None
None
Graphic
Near
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Near
Far
Point-to-point call:
graphic
None
Graphic
Far
Near
Three-way call:
main/UI
Last
talker
Main
Far
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (3)
Three-way call:
graphic
Near
None
None
None
Graphic
Near
Three-way call:
discussion mode
Far
Three-way call:
presentation mode
Far
Near
Three-way call:
full-screen mode
Far
Near
Four-way call:
main/UI
Last
talker
Main
Far (2)
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Four-way call:
graphic
None
Cont.
presence
Graphic
Far (2)
Far (2)
Far (2)
Last
talker
Four-way call:
discussion mode
Near
Near
Near
Far
Far
Far
Far (3)
Far (3)
Far (3)
Four-way call:
presentation mode
Four-way call:
full-screen mode
Three-monitor mode, VGA
Not in a call: main/UI None
Not in a call: graphic None
Main
Near
Far
Near
None
Near
None
None
None
Graphic
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Near
Near
Far
Far
Point-to-point call:
graphic
None
None
Graphic
Graphic
Three-way call:
main/UI
Last
talker
Main
Far
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (3)
Far (3)
Three-way call:
graphic
None
None
None
None
Near
Near
Near
Near
Far (2)
Far (2)
Three-way call:
discussion mode
Far
Three-way call:
presentation mode
Far
Three-way call:
full-screen mode
Far
Four-way call:
main/UI
Last
talker
Main
Far
Four-way call:
graphic
Near
Graphic
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Four-way call:
Near
Far
Far (2)
Far (3)
discussion mode
Four-way call:
presentation mode
Near
Near
Far
Far
Far (2)
Far (2)
Far (3)
Far (3)
Four-way call:
full-screen mode
Four-monitor mode, no VGA
Not in a call: main/UI None
Not in a call: graphic None
Main
Near
Far
Near
None
None
None
None
None
None
Graphic
Near
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Near
Far
None
None
Far
Point-to-point call:
graphic
None
Graphic
Near
Near
Three-way call:
main/UI
Last
talker
Main
Far
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Three-way call:
graphic
None
None
None
None
Graphic
Near
Near
Three-way call:
discussion mode
Far
None
None
None
Far (3)
Far (3)
Far (3)
Three-way call:
presentation mode
Far
Near
Three-way call:
full-screen mode
Far
Near
Four-way call:
main/UI
Last
talker
Main
Far
Far
Four-way call:
graphic
Near
Graphic
Near
Four-way call:
None
Far
discussion mode
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Four-way call:
None
Far
Near
Far (2)
Far (3)
presentation mode
Four-way call:
None
Far
Near
Far (2)
Far (3)
full-screen mode
Four-monitor mode, VGA
Not in a call: main/UI None
Not in a call: graphic None
Main
Near
Far
Near
None
Near
None
None
None
None
None
None
Graphic
Point-to-point call:
call connect
None
Point-to-point call:
main/UI
Far
Main
Far
Near
Near
Near
Near
Near
Near
Near
Near
Near
Near
Far
None
None
Far
Point-to-point call:
graphic
None
None
Graphic
Graphic
Three-way call:
main/UI
Last
talker
Main
Far
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Far (2)
Three-way call:
graphic
None
None
None
None
None
None
None
None
Far (3)
Far (3)
Far (3)
Three-way call:
discussion mode
Far
Three-way call:
presentation mode
Far
Three-way call:
full-screen mode
Far
Four-way call:
main/UI
Last
talker
Main
Far
Four-way call:
graphic
None
None
Graphic
Four-way call:
Far
discussion mode
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Table 5-1. Expected Display for Each Monitor (Continued)
Monitor
SystemVGA
or Visual
Concert
VGA
Condition
PIP
1
2
3
4
Four-way call:
None
Far
Near
Far (2)
Far (3)
presentation mode
Four-way call:
None
Far
Near
Far (2)
Far (3)
full-screen mode
RS-232 Interface
RS-232 Control Mode
In Control Mode, the ViewStation EX, ViewStation FX, or VS4000 is
under the control of the PC or other device connected to its RS-232
port.
RS-232 Pass-Thru Mode
Pass-Thru Mode allows two endpoints to pass data from one unit’s
RS-232 port to the other unit’s RS-232 port, using the H.320 call as
the connection. Pass-Thru Mode is a proprietary feature that is only
available if both endpoints are ViewStation EX, ViewStation FX, or
VS4000 systems. Pass-Thru Mode is available only in H.320 mode
(ISDN or V.35/RS-449/RS-530) calls. It is not available in H.323 (IP)
video calls or multi-point calls.
Note
When using Pass-Thru Mode, both endpoints must be set to the
same baud rate.
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Both endpoints in Pass-Thru Mode —Two stations set to Pass-Thru
Mode behave as a null-modem between their respective externally
connected devices. Data from the RS-232 port on one endpoint is
pushed through the call to the other endpoint, and then transmitted
to the endpoint’s RS-232 port. The data channel speed is
dynamically allocated. The maximum data flow rate is based on the
bandwidth of the call.
Because data throughput has priority over video throughput, video
bandwidth may be restricted to support data requirements. Audio
is not compromised.
Far-site endpoint in Control Mode—If the near site is set to
Pass-Thru Mode and the far site is set to Control Mode, the far-site
device acts as a slave under the control of the device connected to
the near-site endpoint’s RS-232 port.
The following table summarizes the port operation based on the
RS-232 mode configured by each endpoint.
Table 5-2. RS-232 Control and Pass-Thru Modes
Near-Side Mode
Far-Side Mode
Resulting Operation
Control
N/A
Near-side CLI
(Command Line
Interface)
Pass-Thru
Pass-Thru
Control
The near-side controls
the CLI of the far side
Pass-Thru
The data is passed in
full-duplex mode from
the near-side RS-232
port to the far-side
RS-232 port
Flow Control
The ViewStation EX, ViewStation FX, and VS4000 support
hardware flow control. Users should make sure that hardware flow
control settings are consistent between the system and the external
devices on both sides of the connection.
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Configure the System for RS-232 Operation
To configure your system to use the RS-232 interface:
1. Select System Info > Admin Setup > Software/Hardware >
RS-232 to display the RS-232 screen
2. Configure the Baud Rate.
3. Configure the RS-232 Mode. Select Control Mode to allow the
system to act as a slave device under the control of the RS-232
device using the Remote Control API, or select Pass-Thru Mode
to do either of these:
•
Allow the system to act as a master device, controlling the
ViewStation EX, ViewStation FX, or VS4000 at the far end.
•
Configure the system as a null-modem, using the RS-232
port as a data channel.
4. Configure Flow Control.
Command Line Interface (CLI)
Several communications programs (such as HyperTerminal) are
available to provide a command line interface (CLI) to control the
system via the RS-232 interface. The following explains how to start
a HyperTerminal session on your PC.
To start a HyperTerminal session:
1. From your PC desktop, select Start > Programs > Accessories >
Communications > HyperTerminal.
2. In the Connection Description window, enter a Name. Select
an icon. Click OK.
3. In the Connect To window, from the Connect Using list, select
the proper comport (usually com1). Click OK.
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4. In the Com1 Properties window, under Port Settings, select the
following settings:
•
•
•
•
•
Baud rate should match that of the system (default is 9600)
Data bits = 8
Parity = none
Stop bits = 1
Flow control setting should match that of the system. None
is the default. Some third-party control panels may require
to be set to Hardware.
5. Click OK.
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6
Testing and Troubleshooting
This chapter describes how to do post-deployment functional tests
and how to identify and correct problems.
This chapter covers the following topics.
Topic
Page
Indicator Lamps
The ViewStation EX, ViewStation FX, and VS4000 and their network
interface modules have indicator lamps (LEDs) that can help you to
determine whether the equipment is performing properly, and to
diagnose problems if it is not. The following sections define the
various indications provided by the lamps.
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Indicator Lamps on the PRI Network Interface Module
The PRI network interface module uses lamps on both the network
side and the peripheral side to provide status indications.
Note
The PRI network interface module is not available with the
ViewStation EX.
Table 6-1. PRI indicator lamps - Network side
Lamp behavior
Meaning
Amber LED on
Software update starting: Data is being
transferred to the PRI network module
(approximately 90 seconds)
Amber LED and
green LED on
Software update in progress: The module is being
updated (a few seconds)
Red LED on
momentarily.
Software update finishing
T1only:YellowLED
on momentarily.
Software update finishing
Green LED on
Software update complete, system synchronized
with network and fully operational
Red LED blinking
No power on the line: network cable is
unconnected, or upstream switch or PBX port is
deactivated
Red LED on
Network cable is connected and power on the
line, but no clock syn
Yellow LED blinking E1: Receiving Remote Alarm Indication (RAI)
from network with Cyclic Redundancy Check
(CRC) errors
Yellow LED on
T1: Waiting for a timer to elapse
E1: Receiving RAI from network with no CRC
errors
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Table 6-1. PRI indicator lamps - Network side (Continued)
Lamp behavior
Meaning
Red and yellow
LEDs on
Receiving clock sync, and receiving AIS Alarm
Indication Signal (unframed all-ones)
Green LED on
System fully synchronized with the network and
ready to use
Table 6-2. PRI indicator lamps - Peripheral side
Lamp behavior
Meaning
Amber LED on
Booting (brief) or starting software update (over
60 seconds)
Amber and green
LEDs on
Software update in progress
Green LED on
Readya
a. If the PRI network interface module is connected to an external
power source, the green LED turns on after several seconds, even
if the peripheral link cable is not connected.
Indicator Lamps on the Quad BRI Network Interface Module
The Quad BRI network interface module uses pairs of indicator
lamps associated with each BRI line to provide status indications.
The table below shows the meanings of the LED pair associated with
one line. Note that the lines in use may not always display the same
status. If this is the case, you should investigate the cause. .
Table 6-3. Quad BRI Indicator Lamps
Indication
Meaning
Green LED
Off = no connection to the switch, or no clock
On = clock is synchronized with the switch
Yellow LED
Off = in reset mode, booting
On = active
Both LEDs on
Normal operation
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Indicator Lamps on the V.35/RS-449/RS-530 Network
Interface Module
The V.35/RS-449/RS-530 network interface module uses lamps on
both the network side and the peripheral side to provide status
indications.
Table 6-4. V.35/RS-449/RS-530 Indicator Lamps - Network Side
Lamp behavior
Meaning
Amber LED on
Indicates that a port is properly connected to an
active DCE and is receiving a network clock
Green LED on
The system is in a call
Table 6-5. V.35/RS-449/RS-530 Indicator Lamps - Peripheral Side
Lamp behavior
Meaning
Green and amber
LEDs flash once,
then turn on
System booting
Amber LED on
System is communicating with the network
interface module
Green LED on
System is communicating with the network
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Fault Isolation
The following table lists symptoms, causes, and corrective actions
for equipment malfunctions.
Table 6-6. Fault Isolation
Problem
Possible cause
Corrective action
Monitor screen remains blank Monitor is not connected to
power
Check all cables to equipment
Monitor is not connected to
endpoint equipment
Endpoint equipment is not
connected to power
System is in sleep mode
Lift the remote control and point
it toward the remote sensor
Reboot process does not end Flash memory is full
Turn off power to the system,
then press and hold the reset
switch while turning on power
Reboot process halts without
finishing
File corruption
Turn off power to the system,
then press and hold the reset
switch while turning on power
System displays a Softupdate No power at PRI network
Check cable between endpoint
and PRI network interface
module
screen
interface module
PBX does not accept calls of
numbering type “unknown”
from PRI network interface
module
Configuration problem
Refer to the appropriate User
Guide for information about
configuring the PRI
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ISDN Error Codes
The following table describes codes that the ISDN switch sends to
the router to indicate call status. Although the codes are
standardized, each ISDN service provider defines them differently.
Because of this, the definitions in the table may not exactly match
the messages that appear on your monitor.
Table 6-7. ISDN Call Status Codes
Code Cause
Definition
1
2
3
6
7
Unassigned
number
The switch received the sent ISDN number
in the correct format, but no destination
equipment uses the number.
No route to
specified transit
network
The ISDN exchange does not recognize the
intermediate network through which to route
the call.
No route to
destination
The intermediate network through which the
call is routed does not serve the destination
address.
Channel
unacceptable
The specified channel does not provide
adequate service quality to accept the
requested connection.
Call awarded
and delivered
The user is assigned an incoming call that is
being connected to a call channel that has
already been established for this user and
this type of call.
16
17
Normal call
clearing
The originator or receiver of the call has
requested that it be cleared.
User busy
All B channels are in use; the called system
acknowledges theconnection request, butis
unable to accept the call.
18
19
No user
responding
The destination equipment does not
respond to the call, so the connection
cannot be completed.
No answer from
user (user
alerted)
The destination equipment did not complete
the connection within the prescribed time
after responding to the connection request.
The problem is at the remote end of the
connection.
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Table 6-7. ISDN Call Status Codes (Continued)
Code Cause Definition
21
Call rejected
The destination equipment is capable of
accepting the call, but has rejected it for an
unknown reason.
22
Number
changed
The ISDN number used to set up the call is
no longer valid. (The diagnostic field of the
message may return an alternate address
assigned to the called equipment.)
26
27
Non-selected
user clearing
The destination is capable of accepting the
call, but did not assign it to the user.
Destination out
of order
A signaling message cannot be delivered
because the interface is not functioning
correctly, and the destination cannot be
reached. This condition might be temporary;
for example, remote equipment might be
turned off.
28
Invalid number
format
Destination address was incomplete or
presented in an unrecognizable format,
which prevented the connection from being
established.
29
30
Facility rejected
The network cannot provide the facility
requested by the user.
Response to
STATUS
The equipment returns this message when it
receives a STATUS INQUIRY message.
INQUIRY
31
34
38
Normal,
unspecified
A normal event has occurred with no
standard cause applying. No resulting
action is required.
No
The call cannot be taken because no
appropriate channel is available to establish
the connection.
circuit/channel
available
Network out of
order
A network problem prevented the call from
reaching its destination. Attempts to
reconnect will probably fail until the network
problem is corrected.
41
Temporary
failure
A network error occurred. The problem will
be resolved shortly. Attempts to reconnect
may succeed.
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Table 6-7. ISDN Call Status Codes (Continued)
Code Cause
Definition
42
43
44
47
49
Switching
equipment
congestion
The destination cannot be reached because
the network switching equipment is
temporarily overloaded.
Access
information
discarded
The requested access information cannot
be provided by the network. The diagnostic
message may explain the problem.
Requested
circuit/channel
not available
The remote equipment cannot provide the
requested channel. This may be temporary.
Resource
unavailable,
unspecified
An unknown problem prevents the remote
equipment from providing the requested
resource.
Quality of
service
unavailable
The network cannot provide the requested
quality of service (as defined by CCITT
recommendation X.213). This may be a
subscription problem.
50
57
Requested
facility not
subscribed
The remote equipment is capable of
providing the requested supplementary
service, but is not subscribed to it.
Bearer
capability not
authorized
The caller has requested a bearer capability
that the network can provide, but the user is
not authorized to use. This may be a
subscription problem.
58
63
Bearer
The network normally provides the
capability not
presently
available
requested bearer capability, but cannot
provide it now. This may be a temporary
network problem or a subscription problem.
Service or
option not
available,
unspecified
An unspecified problem prevents the
network or remote equipment from providing
the requested service or option. This might
be a subscription problem.
65
66
Bearer
capability not
implemented
The network is not capable of providing the
bearer capability requested by the user.
Channel type
not
implemented
The requested channel type is not
supported by the equipment sending this
code.
116
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Chapter 6 - Testing and Troubleshooting
Table 6-7. ISDN Call Status Codes (Continued)
Code Cause Definition
69
Requested
facility not
implemented
The remote equipment is not capable of
providing the requested supplementary
service.
70
Only restricted
digital
information
bearer is
The network is unable to provide
unrestricted digital information over bearer
capability.
available
79
Service or
option not
available,
unspecified
The network or remote equipment is unable
to provided the requested service option for
an unspecified reason. This might be a
subscription problem.
81
82
83
Invalid call
reference value
The remote equipment received a call with a
call reference that is not currently in use on
the user-network interface.
Identified
channel does
not exist
The receiving equipment is requested to use
a channel that is not activated on the
interface for calls.
A suspended
call exists but
this call identity
does not
The network received a call resume request
that contained a call identity information
element that does not match any suspended
call.
84
85
86
Call identity in
use
The network received a call suspend
request that contained a call identity
information element for a call that is already
suspended.
No call
suspended
The network received a call resume request
when there was not a suspended call
pending. This might be a transient error that
will be resolved by successive call retries.
Call having
The network received a call resume request
containing a call identity information
element for a call that was cleared while
suspended, either by timeout or by the
remote user.
requested call
identity has
been cleared
88
Incompatible
destination
Indicates that an attempt was made to
connect to non-ISDN equipment, such as an
analog line.
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Table 6-7. ISDN Call Status Codes (Continued)
Code Cause
Definition
91
95
Invalid transit
network
specified
The ISDN exchange was asked to route the
call through an unrecognized intermediate
network.
Invalid
message,
unspecified
An invalid message was received, for an
unknown reason. This is usually due to a
D-channel error. If this error occurs
systematically, report it to your ISDN service
provider.
96
Mandatory
information
element is
missing
The equipment received a message that did
not include one of the mandatory
information elements. This is usually due to
a D-channel error. If this error occurs
systematically, report it to your ISDN service
provider.
97
98
99
Message type
nonexistent or
not
The equipment received a message of a
type that is invalid or not supported. This
code indicates either a problem with the
remote configuration or a problem with the
local D channel.
implemented
Message
incompatible
The equipment received a message that is
not valid in the current call state. Cause 98
with call state or is usually due to a D-channel error. If this
message type
nonexistent
error occurs systematically, report it to your
ISDN service provider.
Information
element
nonexistent or
not
The equipment received a message that
includes information elements which were
not recognized. This is usually due to a
D-channel error. If this error occurs
systematically, report it to your ISDN service
provider.
implemented
100
101
Invalid
The equipment received a message that
includes invalid information in the
information element. This is usually due to a
D-channel error.
information
element
contents
Message not
compatible with
call state
The remote equipment received a message
that does not correspond to the current state
of the connection. This is usually due to a
D-channel error.
118
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Chapter 6 - Testing and Troubleshooting
Table 6-7. ISDN Call Status Codes (Continued)
Code Cause Definition
102
Recovery on
timer expiry
A time-out has triggered an error-handling
(recovery) procedure. This problem is
typically temporary.
111
127
Protocol error,
unspecified
An unspecified D-channel error when no
other standard cause applies.
Interworking,
unspecified
An event occurred within a network that
does not provide causes for the action that it
takes. The precise problem is unknown.
145
146
ISDN layer 1
and/or 2 link not
established
User needs to check cabling, ISDN adapter
status and network connections.
ISDN layer 3
connection to
the ISDN
There is either a switch protocol error, or (in
the United States or Canada) a SPID
assignment problem.
switch/network
inactive
255
ISDN command The ISDN signaling code has encountered
processingerror an error processing an ISDN action. ISDN
adapter busy-wait and retry.
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A
System Interoperability
The ViewStation EX, ViewStation FX, and VS4000 can work with
the following non-Polycom endpoint equipment:
Table A-1. H.320 Endpoints
Manufacturer
Sony
Model
Version
4.1
PCS6000
Tandberg
500
B5.1
800
1000
2000
6000
VCON
VTEL
Cruiser
4.6
Media Connect
8000
Galaxy
2.2.0.070
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Table A-2. H.323 Endpoints
Manufacturer
Microsoft
Model
Version
2.1, 3.0, 3.01a
B5.1
NetMeeting
Tandberg
500
800
1000
2500
6000
VCON
Cruiser
Escort
4.6
Media Connect
8000
ViGO™
Falcon
Galaxy
5.1
3.0
VTEL
2.2.0.70
a. No application sharing, file transfer, or whiteboarding in versions
3.0 and 3.01
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Appendix A - System Interoperability
The ViewStation EX, ViewStation FX, and VS4000 can work with the
following non-Polycom MCUs:
Table A-3. H.323 MCU Interoperability
Manufacturer
H.320
Model
Version
Lucent
Multi-Point Conferencing
Unita
H.323
Ezenia
MCS
1.2.2
Encounter 3000 ECMS
MCU
1.01
Radvision
Whitepine
2.2.1.0.9d
2.2.265
5.0
viaIP 400 MCU
Meeting Point
a. chair control, far-end camera control and T.120 do not work
in cascaded calls
The ViewStation EX, ViewStation FX, and VS4000 can work with the
following non-Polycom gateways and gatekeepers:
Table A-4. Gateway/Gatekeeper Interoperability
Manufacturer
Model
Version
Cisco
MCM Gatekeeper with 3640
router
12.1 build 7
Ezenia
Gatekeeper
1.2.2
1.0
Encounter 3000
Netgate/Gatekeeper
Encounter 3000 ECMS
Gatekeeper
1.01
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Table A-4. Gateway/Gatekeeper Interoperability (Continued)
Manufacturer
Radvision
Model
L2W-323BRI
Version
2.2.3.2.5
Gateway/Gatekeeper
L2W-323PRI
Gateway/Gatekeeper
MCU Gatekeeper
2.2.1.0.9d
1.0
NGK 200 Gatekeeper
T120 Data Collaborator Server
ECS/viaIP Gatekeeper
Meeting Point Gatekeeper
1.07
2.0.2.2
5.0
Whitepine
The ViewStation EX, ViewStation FX, and VS4000 can work with the
following NATs and firewalls:
Table A-5. NAT and Firewall Interoperability
Manufacturer
Version
Cisco Router
Cisco PIXa
12.2 Build 7
6.1.2
Linksys
NetGear
SMC
1.40.2
3.24
1.93s
a. Cisco PIX firewall configuration issue: The Cisco
document at www.cisco.com/warp/public/707/28.html
details a problem regarding accepting data from a
system outside the firewall and offers the solution. The
solution allows external systems to communicate with
those inside the PIX firewall, allowing the
videoconference to take place. Please refer to the
sections “Allowing Untrusted Hosts Access to Hosts
on Your Trusted Network” and “Disabling NAT” of the
Cisco document.
124
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B
ViewStation Series Cables
The following tables list cables for systems in the ViewStation
family.
Board Room and Custom Room Systems
Table B-1. Cables for VS4000
Use
Description
Length and pinout
Longer version
PC Ethernet
Blue RJ-45
25 ft (7.6 m), Standard
No
Camera, document
camera, or monitor
(6) Yellow S-video
25 ft (7.6 m), Standard 50 ft/15.2 m
VCR
Red/white/yellow RCA
Brown RJ-9
8 ft (2.4 m), Standard
10 ft (3 m), Custom
No
30 ft/9.1 m
No
Microphone pod
ISDN network
Serial
Light Blue RJ-45
Violet DB-9
20 ft (6.1 m), Standard
25 ft (7.6 m), Standard
25 ft (7.6 m), Standard
No
Audio device input
monitor
Single black RCA
(6) Single yellow RCA
Orange RJ-45
No
25 ft (7.6 m), Standard 50 ft/15.2 m
IP network
Camera control
25 ft (7.6 m), Standard
No
Yellow 8-pin DIN TO DB-9 25 ft (7.6 m), Custom
50 ft/15.2 m
XGA projector or monitor XGA - yellow DB-15
30 ft (9.1 m), Standard
25 ft (7.6 m), Standard
25 ft (7.6 m)
No
No
No
monitor
IPOTS
Red/white RCA
Pink RJ-11
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Table B-2. Cables for ViewStation EX and ViewStation FX
Use
Description
Length and pinout
25 ft (7.6 m), Standard
12 ft (3.7 m), Standard
8 ft (2.4 m), Standard
25 ft (7.6 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
10 ft (3 m) Custom
Longer version
PC Ethernet
IP network
Blue RJ-45
No
Orange RJ-45
No
Audio device input
Document camera
Second monitor
VCR
Single black RCA
Yellow S-video
Yellow S-video
Red/white/yellow RCA
Brown RJ-9
No
No
No
No
Microphone pod
Monitor
30 ft/9.1 m
No
Triple RCA with S-video
Light blue RJ-45
6 ft (1.8 m), Standard
ISDN network
20 ft (6.1 m),
No
Standard, keyed
XGA projector or monitor XGA breakout
For FX only
1 ft (0.3 m) Custom
No
Serial
Yellow 8-pin DIN to DB-9 10 ft (3 m) Custom
No
Camera or camera
control
Yellow 8-pin DIN to 8-pin
DIN/4-pin DIN
50 ft (15.2 m)
Standard
100 ft/30.5 m
For FX only
IPOTS
Pink RJ-11
12 ft (3.7 m)
No
Table B-3. Cables for Upgrades to ViewStation EX, ViewStation FX, and
VS4000
Use
Description
Length and pinout
Longer version
Quad BRI network side
(4) Quad BRI - clear
RJ-45
20 ft (6.1 m), Standard
No
Quad BRI to ViewStation
EX or FX
Light blue to green RJ-45 20 ft (6.1 m),
Standard, keyed
No
No
V.35 module upgrade
No cables are associated with this upgrade kit
20 ft (6.1 m), Standard
PRI module network side Quad BRI - Clear RJ-45
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Appendix B - ViewStation Series Cables
Table B-4. Cables for ViewStation EX, ViewStation FX, and VS4000
Accessories
Use
Description
Length and pinout
Longer version
Visual Concert FX to PC
VGA, audio, LAN
composite cable
5 ft (1.5 m) Custom
No
Visual Concert FX to
ViewStation EX, FX or
VS4000
RJ-45 TO
RJ-45/RJ-9/2-pin Molex
30 ft (9.1 m), standard 50 ft/15.2 m
Visual Concert FX
microphone pod
Brown RJ-11 to RJ-9
6 ft (1.8 m), Standard
No
No
PC TO Visual Concert
PC
Brown RJ-9 TO PCMCIA 4 ft (1.2 m), Custom
Table B-5. Additional Cables for ViewStation EX, ViewStation FX, and
VS4000
Use
Description
Length and pinout
Longer version
V.35 Y-cable
DB-25M to M34
Winchester/RS-366
DB-25M
5 ft (1.5 m) Custom
No
V.35 Cable adapter for
ViewStation EX, FX and
VS4000
HD-44M to DB-25F
1 ft (0.3 m) Custom
No
V.35 for ViewStation FX
and VS4000
Ascend HD-44M to
HD-44M
5 ft (1.5 m) Custom
5 ft (1.5 m) Custom
No
No
V.35 Y-cable for
ViewStation FX and
VS4000
HD-44M to M34
Winchester/RS-366
DB-25M
RS-449 Y-cable
HD-44M to RS-449 DB
37M/RS-366 DB-25M
5 ft (1.5 m) Custom
No
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Medium and Large Room Systems
Table B-6. Cables for ViewStation H.323
Use
Description
Length and pinout
Longer version
IPOTS
Pink RJ-11
12 ft (3.7 m)
No
IP network
PC Ethernet
Audio device input
VCR
Orange RJ-45
Blue RJ-45
12 ft (3.7 m), Standard No
25 ft (7.6 m), Standard No
Black single RCA
Red/white/yellow RCA
Yellow S-video
Yellow S-video
Brown RJ-9
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4m), Standard
No
No
No
Second monitor
Document camera
Microphone pod
ISDN network
Monitor
25 ft (7.6 m), Standard No
30 ft (9.1 m), Custom No
20 ft (6.1 m), Standard No
6 ft (1.8 m), Standard No
Green RJ-45
Triple RCA with S-video
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Appendix B - ViewStation Series Cables
Table B-7. Cables for ViewStation MP
Use
Description
Length and pinout
12 ft (3.7 m)
Longer version
IPOTS
Pink RJ-11
No
No
No
No
No
No
No
No
No
No
No
IP network
Orange RJ-45
Blue RJ-45
12 ft (3.7 m), Standard
25 ft (7.6 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
25 ft (7.6 m), Standard
30 ft (9.1 m), Custom
20 ft (6.1 m), Standard
6 ft (1.8 m), Standard
20 ft (6.1 m), Standard
PC Ethernet
Audio device input
VCR
Black single RCA
Red/white/yellow RCA
Yellow S-video
Yellow S-video
Brown RJ-9
Second monitor
Document camera
Microphone pod
ISDN network
Monitor
Green RJ-45
Triple RCA with S-video
Network interface
(4) Quad BRI - clear
RJ-45
Table B-8. Cables for ViewStation MP DCP
Use
Description
Length and pinout
Longer version
IPOTS
Pink RJ-11
12 ft (3.7 m)
No
No
No
No
No
No
No
No
No
No
IP network
PC Ethernet
Audio device input
VCR
Orange RJ-45
Blue RJ-45
12 ft (3.7 m), Standard
25 ft (7.6 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
8 ft (2.4 m), Standard
25 ft (7.6 m), Standard
30 ft (9.1 m), Custom
20 ft (6.1 m), Standard
6 ft (1.8 m), Standard
Black single RCA
Red/white/yellow RCA
Yellow S-Video
Yellow S-Video
Brown R-J9
Second monitor
Document camera
Microphone pod
ISDN network
Monitor
Green RJ-45
Triple RCA with S-video
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Table B-8. Cables for ViewStation MP DCP (Continued)
Use
Description
Length and pinout
Longer version
Network interface
DCP interface only
(4) DCP- clear RJ-45
DCP Green/white RJ-45
20 ft (6.1 m), Standard
No
No
20 ft (6.1 m),
Standard, keyed
Table B-9. Cables for Upgrading ViewStation Models (Except FX)
Use
Description
Length and pinout
Longer version
Quad BRI network side
(4) Quad BRI - Clear
RJ-45
20 ft (6.1 m), Standard
No
V.35 to MP, network
MP upgrade kit
(4) DCP - Clear RJ-45
20 ft (6.1 m), Standard
No
No cables associated with this kit
No cables associated with this kit
V.35 module upgrade kit
DCP Module, network
side
(4) DCP- clear RJ-45
20 ft (6.1 m), Standard
No
No
DCP interface only
DCP green/white RJ-45
20 ft (6.1 m),
Standard, keyed
Small Room Systems
Table B-10. Cables for ViewStation SP 128
Use
Description
Length and pinout
Longer version
IP network
Microphone pod
ISDN network
Monitor
Orange RJ-45
Brown RJ-9
12 ft (3.7 m), standard
30 ft (9.1 m), standard
20 ft (6.1 m), standard
6 ft (1.8 m), standard
No
No
No
No
Green RJ-45
Triple RCA with S-video
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Appendix B - ViewStation Series Cables
Table B-11. Cables for ViewStation 128
Use
Description
Length and pinout
12 ft (3.7 m)
Longer version
IPOTS
Pink RJ-11
No
No
No
No
No
No
No
No
No
No
IP Network
PC Ethernet
Audio device input
VCR
Orange RJ-45
Blue RJ-45
12 ft (3.7 m), standard
25 ft (7.6 m), standard
8 ft (2.4 m), standard
8 ft (2.4 m), standard
8 ft (2.4 m), standard
25 ft (7.6 m), standard
30 ft (9.1 m), Custom
20 ft (6.1 m), standard
6 ft (1.8 m), standard
Black single RCA
Red/white/yellow RCA
Yellow S-video
Yellow S-video
Brown RJ-9
Second monitor
Document camera
Microphone pod
ISDN network
Monitor
Green RJ-45
Triple RCA with S-video
Table B-12. Cables for ViewStation SP 384
Use
Description
Length and pinout
Longer version
IP network
Microphone pod
ISDN network
Monitor
Orange RJ-45
Brown RJ-9
12 ft (3.7 m), Standard
30 ft (9.1 m), Custom
20 ft (6.1 m), Standard
6 ft (1.8 m), Standard
No
No
No
No
Green RJ-45
Triple RCA with S-video
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Safety and Legal Notices
Important Safeguards
Read and understand the following instructions before using any equipment described in this
manual:
•
Close supervision is necessary when the system is used by or near children. Do not leave
unattended while in use.
•
•
•
Only use electrical extension cords with a current rating at least equal to that of the system.
Always disconnect the system from power before cleaning and servicing and when not in use.
Do not spray liquids directly onto the system when cleaning. Always apply the liquid first to a
static free cloth.
•
•
Do not immerse the system in any liquid or place any liquids on it.
Do not disassemble this system (except as instructed in the manufacturer's instructions). To
reduce the risk of shock and to maintain the warranty on the system, a qualified technician
must perform service or repair work.
•
•
Connect this appliance to a grounded outlet.
In case of lightning storms, disconnect the telephone line cord from the system, and only
connect the system to surge protected power outlets.
•
•
Keep ventilation openings free of any obstructions.
SAVE THESE INSTRUCTIONS.
License Restrictions
THE SOFTWARE PROGRAMS CONTAINED OR DESCRIBED HEREIN ARE CONFIDENTIAL
INFORMATION AND PROPRIETARY PRODUCTS OF POLYCOM, INC. OR ITS LICENSORS.
Buyer shall not sublicense or otherwise distribute any of the Subject Programs except to End
Users and/or resellers who have entered into a Sublicense Agreement. For purposes of this
Agreement a “Sublicense Agreement” shall mean a written license agreement between the
Buyer and its purchaser, or, in the case of any sale by Buyer to a reseller, between such reseller
and the End User, that is either 1) signed by the End User or 2) included with the Documentation,
in such a manner that the End User reasonably indicates its acceptance of the Sublicense
Agreement by turning on and using the Computer Equipment. Polycom, Inc. shall include
so-called “break the seal software licenses” with the Documentation, and Buyer shall not remove
or alter any such Sublicense Agreements or any notifications or warning stickers relating thereto.
Buyer shall not waive, amend, or otherwise modify any Sublicense Agreement without Polycom’s
prior consent.
Title to all Subject Programs shall at all times remain and vest solely with Polycom, Inc. and its
licensors. Buyer acknowledges Polycom’s claim that the Subject Programs are its trade secret
and confidential property, and shall treat them as such. Buyer will not attempt to disassemble,
decompile, reverse-engineer or otherwise endeavor to discover or disclose the methods and
concepts embodied in the Subject Programs. Except as expressly allowed under this Agreement,
the Buyer shall not copy, modify, transcribe, store, translate, sell, lease, or otherwise transfer or
distribute any of the Subject Programs in whole or in part, without prior authorization, in writing,
from Polycom, Inc.. Buyer shall not remove or destroy any copyright, patent, trademark or other
proprietary mark or notice on Computer Equipment, and shall reproduce any such marks on any
copies of Subject Programs that it makes hereunder.
You shall not, and shall not allow, any third party to 1) decompile, disassemble, or otherwise
reverse-engineer or attempt to reconstruct or discover any source code or underlying ideas or
algorithms of the software by any means whatsoever or 2) remove any product.
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Limitation of Remedies and Damages
Polycom, Inc., its agents, employees, suppliers, dealers and other authorized representatives
shall not be responsible or liable with respect to the product or any other subject matter related
thereto under any contract, negligence, strict liability or other theory for any indirect, incidental,
or consequential damages, including, but not limited to loss of information, business, or profits.
The law of certain states or nations does not permit limitation or exclusion of implied warranties
and consequential damages, so the above limitations, disclaimers, or exclusion may not apply to
you. This warranty gives you special legal rights. You may also have other rights that vary by
state and nation.
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Index
for direct connect 85
HD-44M to DB-25M/RS-366 and DB-
37M/RS-449/422 85
HD-44M to DB-25M/RS-366 and M34
Winchester V.35 85
A
acoustics 73
address
E.164 56
H.323 (IP) 56
HD-44M to HD-44M 85
diagram 32
pinout 33
diagram 34
administration plan 58
Adtran Atlas 800 Plus E1 module 82
audio codecs 17
pinout 35
PRI to network 84
B
Quad BRI to network 24
RS-232 for ViewStation FX
diagram and pinout 20
RS-232 for VS4000
diagram and pinout 21
V.35/RS-449
for encryption equipment 44
ViewStation FX/VS4000 Quad BRI to
network
bandwidth
allocation policy 58
PRI E1 26
PRI T1 26
requirements
calculating 50
browser, see Web browser 19
diagram and pinout 24
ViewStation FX/VS4000 to network
diagram and pinout 23
C
cable
adapter
call
coaxial,forViewStation FX/VS4000
PRI 83
ViewStation FX/VS4000 V.35/RS-
449 31
cascading 18
test 96
Ascend HD-44M to HD-44M Y 36
diagram 36
pinout 36
call blocking 27
call routing 57
caller ID 27
crossover, network interface module to
extension
ViewStation FX/VS4000tonetwork
interface module 83
camera 16
camera presets 16
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cascading 18
channel restarts, Adtran Atlas 800 Plus E1
module 82
ViewStation FX/VS4000
channel selection, ViewStation FX/VS4000
PRI 30
channel service unit, see CSU 82
clock
E
source
V.35/RS-449 32
closed captioning 19
codecs
video 14
codecs, audio 17
E.164 address 56
E1 line, dedicated 30
error correction 15
collaboration tools 19
common speeds, V.35 31
connection speed
PRI E1 26
F
fail-over management 57
fault isolation 113
PRI T1 26
ViewStation FX/VS4000
conversion tool 19
CSU, for ViewStation FX/VS4000 PRI 82
Quad BRI 22
ViewStation FX/VS4000 PRI 28
file conversion tool 19
firewall interoperability 124
frame rate 15
D
dedicated T1 or E1 line 30
deployment process, defined 78
full-screen mode
ViewStation FX/VS4000
diagnostics 113
ViewStation FX/VS4000
Quad BRI 22
dial plan 57
discussion mode
G
ViewStation FX/VS4000
display
gatekeeper 57
assignment 57
gateway 57
assignment 57
gateway/gatekeeper interoperability 123
graphics resolution 15
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Chapter -
GUI, ViewStation FX/VS4000 19
N
NAT 89
configuring 90
NAT interoperability 124
network
I
indicator lamps, see specific equipment
models 22
policy 58
internal telephone system, see PBX 22
IP address 92
network address translation, see NAT 89
network interface module, see specific
endpoint models 22
network interface modules, ISDN 12
network termination device, see NT-1
device 22
NFAS (non-facility-associated signaling) 27
required if no PBX 80
NT-1 device settings 24
IP precedence 50
ISDN connection 25
ISDN network interface modules 12
ITU-T standards 14
J
P
jitter 50
packet loss 50
pcPresent 19
picture quality 72
L
languages, ViewStation FX/VS4000 19
latency 50
LEDs, see specific equipment models 22
lighting 72
plan
administration 58
dial 57
zone 57
M
policy
MCU interoperability 123
media players 18
bandwidth allocation 58
network 58
Polycom Office
microphone pods
for ViewStation FX/VS4000 17
definition 45
multipoint calls 18
interoperability with non-Polycom
Polycom Video Error Concealment (PVEC)
PolycomSNAP 19
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power supply, for ViewStation FX/VS4000
power supply, PRI 84
PowerPoint file conversion tool 19
presentation mode
NT-1 device 24
software update
ViewStation FX/VS4000
PRI 28
Quad BRI 25
speakerphone 18
ViewStation FX/VS4000
two monitors 100
SPID allocation 25
standards, ITU-T 14
streaming, see video streaming 18
system requirements
PC connected to ViewStation FX/
VS4000 (Ethernet) 91
presentation tools 19
preset camera position, see camera presets
PVEC
defined 15
T
T1 line, dedicated 30
TCP/IP 95
Q
QoS (quality of service) 50
quality
test calls 96
tools
video 72
collaboration 19
file conversion 19
presentation 19
screen capture 19
touchscreen 19
tracking
R
remote control, ViewStation FX/VS4000 19
resolution
to presets 16
voice 16
graphic 15
video 15
traffic management 57
room lighting 72
RS-232
U
ViewStation FX/VS4000
flow control 106
user administration 58
V
video
streaming 18
S
video codecs 14
video error concealment 15
video resolution 15
screen capture tool 19
security 72
settings
138
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Chapter -
video signal format 14
ViewStation FX
cable, RS-232 20
defined 12
ViewStation FX/VS4000
cable
Quad BRI network interface module,
defined 12
RS-232
configuration 107
flow control 106
RS-232 interface 20
extension to network interface
module 83
user interface 19
Quad BRI to network 24
configuration 92
connecting to PC Ethernet port 91
DHCP server 94
electrical specifications 12
frame rate 15
graphics resolution 15
microphone placement 17
microphone pod specifications 17
multipoint calling 18
network interface modules 13
Adtran Atlas 800 Plus 82
channel selection 30
CSU 82
Crypto Resync option 44
cryptographic resynchronization
installation 86
interface signals 38
V.35/RS-449 network interface module
defined 12
V.35/RS-449 not backward-compatible
video resolution 15
video signal formats 15
video streaming 18
CSU configuration 88
external CSU 88
installation 84
internal CSU 88
power supply 84
Visual Concert
Visual Concert products 19
voice tracking 16
VS4000
PRI E1 27
cable
RS-232 21
camera 16
channel number to timeslot map-
ping 30
PRI network interface module
defined 12
defined 12
PRI T1 27
indicator lamps 22
installation 80
W
installing 81
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Z
zone plan 57
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