Polycom Network Router DOC2238A User Manual
Polycom MGC+50/  
MGC+100  
Hardware & Installation Guide  
Version 9.0.4 | August 2010 | DOC2238A  
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MGC Hardware and Installation Guide  
Table of Contents  
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
MGC+ Unit Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
MGC+50/MGC+100 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4  
MGC+ Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7  
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8  
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9  
List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10  
Installation and Configuration Workflow . . . . . . . . . . . . . . . . . . . . . 1-11  
Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
MGC+100 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Inspecting the MGC+/ReadiManager IAM Package Contents . . 2-2  
System Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
General Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Rack Mount Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 2-3  
Polycom MGC+/ReadiManagerReadiManager Precautions . . . . 2-3  
Unpacking and Positioning the MGC+100 . . . . . . . . . . . . . . . . . 2-4  
Mounting the MGC+100 on a 23” Rack . . . . . . . . . . . . . . . . . . . 2-6  
Mounting the MGC+100 on a 19” Rack . . . . . . . . . . . . . . . . . . . 2-8  
Installing the ReadiManager IAM in the MGC+ Unit . . . . . . . . . . . 2-11  
Inspecting the MGC+ ReadiManager Server . . . . . . . . . . . . . . 2-11  
Contents of the MGC+ ReadiManager Server pre-installed  
on the MGC+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11  
Contents of the MGC+ ReadiManager Server Upgrade  
Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11  
MGC+ ReadiManager Installation . . . . . . . . . . . . . . . . . . . 2-12  
Removing the Blank Panel from the MGC+ Unit . . . . . . . 2-14  
Installing the I/O Card for the ReadiManager IAM . . . . . . 2-15  
Inserting the ReadiManager IAM into the MGC+ Unit . . . 2-16  
Connecting and Setting Up the MGC+100 . . . . . . . . . . . . . . . . . . . . 2-17  
MGC+100 Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17  
Connecting to the power source . . . . . . . . . . . . . . . . . . . . . 2-18  
i
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Table of Contents  
Connecting the MGC+100 to the LAN Network . . . . . . . . 2-19  
Connecting the MGC+100 to the Operator Workstation  
(PC) Directly via RS-232 (Optional) . . . . . . . . . . . . . . . . . 2-19  
Connecting the MGC+100 to the Network . . . . . . . . . . . . 2-20  
MPI-4/8 Hardware Installation for the MGC+100 . . . . . . . . . . 2-21  
To install the MPI-4/8 Network Interface Module: . . . . . . 2-22  
MGC+50 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26  
Unpacking and Positioning the MGC+50 . . . . . . . . . . . . . . . . . 2-26  
Mounting the MGC+50 on a Rack . . . . . . . . . . . . . . . . . . . . . . 2-28  
Connecting and Setting Up the MGC+50 . . . . . . . . . . . . . . . . . 2-32  
MGC+50 Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32  
Connecting to the Power Source . . . . . . . . . . . . . . . . . . . . 2-33  
Connecting the MGC+50 to the LAN Network . . . . . . . . . 2-34  
Connecting the MGC+50 to the Operator Workstation (PC)  
Directly via RS-232 (Optional) . . . . . . . . . . . . . . . . . . . . . 2-34  
Connecting the MGC+50 to the PSTN Network . . . . . . . . 2-35  
Connecting the MGC+50 to the H.323 Network . . . . . . . . 2-36  
MPI-4/8 Hardware Installation for the MGC+50 . . . . . . . . . . . 2-37  
Compact Flash Memory Use on the MGC+ . . . . . . . . . . . . . . . . . . . 2-40  
Rescue Disk (pSOS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41  
Swapping the Operating System (OS) . . . . . . . . . . . . . . . . . . . . . . . 2-42  
MGC+ Software Installation and Configuration . . . . . . . . . . . . . . . 2-43  
Initial ReadiConvene IAM Configuration . . . . . . . . . . . . . . . . 2-43  
First Entry MGC+ Control Unit (CU) IP Configuration . . . . . 2-43  
Method 1 - Using a Compact Flash with the Updated LAN.CFG  
File: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43  
Method 2 - Using a Cross-over Cable and a Laptop to Connect  
to the MCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46  
Method 3 - Defining the IP address using a Keyboard and  
Mouse: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49  
Formatting and Creating a New Compact Flash Boot File . . . . . . . 2-50  
Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52  
System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
Information Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
MGC+ Manager Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7  
ii  
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MGC Hardware and Installation Guide  
Power Supply Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7  
Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
MGC+100 Components Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
MGC+50 Components Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5  
ReadiManager IAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7  
Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8  
Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10  
Control Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11  
Information Highway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12  
Powerplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12  
Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13  
Power Module in the MGC+100 . . . . . . . . . . . . . . . . . . . . . . . . 4-13  
Power Module in the MGC+50 . . . . . . . . . . . . . . . . . . . . . . . . . 4-14  
Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14  
Circuit Breaker (AC Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14  
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15  
Alarms Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15  
Functional Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16  
Net-2/Net-4/Net-8 or T1-CAS Network Interface Module . . . . 4-20  
The Net-2/Net-4/Net-8 ISDN/T1-CAS Network Interface  
Data Stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22  
IP+ Network Interface Module . . . . . . . . . . . . . . . . . . . . . . . . . 4-23  
Module Port Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24  
IP+ Network Interface Module Architecture . . . . . . . . . . . 4-25  
The MPI-4/8 Network Interface Module . . . . . . . . . . . . . . . . . . 4-26  
MPI-4/8 Network Interface Data Stream . . . . . . . . . . . . . . 4-28  
MPI Network Interface Module Architecture . . . . . . . . . . . 4-30  
MUX+ Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31  
MUX+ Card Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32  
IVR/Greet & Guide Welcome Slide . . . . . . . . . . . . . . . . . . 4-33  
MUX+ Port Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33  
MUX+ Participant Move Options . . . . . . . . . . . . . . . . . . . . 4-34  
MUX+ Resource Report . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35  
Audio+ Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37  
iii  
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Table of Contents  
Audio+ Module Architecture . . . . . . . . . . . . . . . . . . . . . . . 4-38  
Audio+ Port Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38  
Video+ Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40  
Video+ Module Architecture . . . . . . . . . . . . . . . . . . . . . . . 4-41  
Data Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42  
Data Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . 4-42  
Input/Output (I/O) Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43  
Rear I/O Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43  
Types of I/O cards on functional Modules . . . . . . . . . . . . . 4-44  
Audio+ Music I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47  
Attaching the Music I/O Card to the Audio+ Module . . . . 4-47  
Enabling the Audio+ Music I/O Card in the MCU  
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49  
MUX+ Video Slides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51  
System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
MGC+ Unit Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3  
MGC+ Unit Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7  
Corrective Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9  
Replacing a Functional Module . . . . . . . . . . . . . . . . . . . . . . . . 5-10  
Replacing the I/O Cards of Functional Modules . . . . . . . . . . . 5-10  
Replacing the Power Supply Modules on the MGC+100 . . . . 5-11  
Replacing the Power Supply Module on the MGC+50 . . . . . . 5-11  
Fan Replacement for the MGC+100 . . . . . . . . . . . . . . . . . . . . . 5-15  
Fan Replacement for the MGC+50 . . . . . . . . . . . . . . . . . . . . . . 5-16  
Replacing the Main Control Module . . . . . . . . . . . . . . . . . . . . 5-17  
Replacing the Main Control Module rear I/O Panel . . . . . 5-18  
Replacing Compact Flash Accessories . . . . . . . . . . . . . . . . . . . 5-18  
Replacing the Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19  
Verifying the Dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20  
Shutting Down the MGC+ 50/100 . . . . . . . . . . . . . . . . . . . . . . 5-21  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22  
iv  
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MGC Hardware and Installation Guide  
Appendix A: Interfaces Pin Assignment . . . . . . . . . . . . . . . . A-1  
PRI Port Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1  
LAN PIN Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2  
Alarms Port Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . .A-2  
RS-232 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3  
Serial Port Connectors Pin out Assignment . . . . . . . . . . . . .A-4  
Cables For the MPI-4/8 Network Interface Module . . . . . . .A-6  
v
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Table of Contents  
vi  
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1
Before You Begin  
The MGC+50 and the MGC+100 are high performance, high capacity  
Multipoint Control Units (MCU) which support up to 48 ports for the  
MGC+50, and 96 ports for the MGC+100. They utilize a variable port  
bandwidth ranging from 56 to 1920 Kbps.  
Figure 1-1: MGC+ 50  
Figure 1-2: MGC+ 100  
1-1  
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Chapter 1 - Before You Begin  
The system meets International Telecommunication Union -  
Telecommunication Standardization Sector, (ITU-T, formerly CCITT)  
standards for multipoint multimedia bridging devices, and meets ETSI  
standards for telecommunication products.  
The flexible architecture in the system is designed to accommodate users’  
changing multipoint needs. This system utilizes a modular “universal slot”  
platform that allows the formation of different configurations based on users’  
individual port capacity and functionality requirements.  
1-2  
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MGC+ Hardware and Installation Manual  
MGC+ Unit Main Features  
The MGC+ unit offers the following features:  
•
Supports a large number of ports (48 for the MGC+50, 96 for the  
MGC+100) running at 128 Kbps  
•
Universal slots, telco grade high availability with hot-swappable  
modules, redundancy, on-line upgrading and dynamic resource  
allocation  
•
•
•
Support for standard network interfaces (ISDN, T1-CAS, LAN and V.35  
serial) for the easy integration of conference elements into external  
network management and billing systems  
Support for up to 16 operator workstations (PCs) connected to either a  
local or remote MCU; each operator workstation can be connected to  
several MGC+ units  
Multirate conferencing and Transcoding (audio and video, including  
high bit rate video and data bit rate conversion)  
•
•
•
•
•
•
•
•
•
•
Channel aggregation according to H.221, Bonding and Multirate (H0)  
Automatic rate detection upon endpoint connection to the conference  
H.320/H.323 video, T.120 data conferencing  
Enhanced Continuous Presence (multi-image video)  
IVR (Interactive Voice Response)  
Windows NT®/Windows 2000®/Windows XP® based operator station  
Multiple operators per conference  
Multiple conferences and MCUs per operator  
TCP/IP - LAN - Internet access  
Supports serial communication (V.35/RS-530/RS-449) (optional)  
1-3  
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Chapter 1 - Before You Begin  
MGC+50/MGC+100 Specifications  
Table 1-1 lists the specifications of the MGC+50 and the MGC+100 units.  
Table 1-1: MGC+ Specifications  
Physical  
Height  
Width  
MGC+50  
MGC+100  
16”  
16”  
15”, 19” with  
23” with mounting plates,  
mounting plate  
19” with unit at 90°  
Depth  
19.5”  
19.5”  
Weight  
Up to 24 kg  
Up to 48 kg  
Free space above the  
MCU rack  
3” in standard  
installations  
3” standard installation, 9”  
if a MPI-8 is to be fitted  
IP Protocols  
MGC+50/MGC+100  
Audio  
G.711, G.722 (48), G.722.1, G.728, G. 723.1,  
G.729A, Siren 7, Siren 14  
Video  
Data  
H.261, H.263 (Annexes N, F, P), H.264  
T.120  
H. 320 Protocols  
MGC+50/MGC+100  
Audio  
G.711, G.722 (48), G.722.1, G.728, G. 723.1, Siren  
7, Siren 14  
Video  
H.261, H.263 (Annexes N, F, P), H.264  
Data  
T120  
Cascading  
Channel aggregation  
H.243  
H.221, BONDING, Multi-Rate (H0)  
1-4  
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MGC+ Hardware and Installation Manual  
Table 1-1: MGC+ Specifications  
Network interfaces  
ISDN:  
T1 PRI, E1 PRI, Multirate ISDN, NFAS, Leased  
lines-T1/E1, Switched 56  
T1-CAS:  
T1-CAS lines for Audio Only connections  
IP (H.323 and SIP):  
LAN  
Serial:  
V.35, RS449, RS530/A  
External  
Communications  
MGC+50/MGC+100  
Data rates  
56 Kbps - 1920 Kbps (E1)  
Network interfaces  
ISDN T1/ E1, T1-CAS, LAN, serial (MPI)  
MGC+ Manager control  
connection  
An independent LAN connection (separate from the  
Network connection)  
Clock synchronization  
Synchronizes to external network  
Local/Remote External  
Equipment  
MGC+50/MGC+100  
Operator workstations  
Reservation systems  
LAN/RS-232/Modem/Internet  
LAN/Internet/Modem  
Environment  
MGC+50/MGC+100  
Operating temperature  
10°–40°C (50°–104°F)  
10°–35°C (50°–95°F) when installed in a 19” rack  
Storage temperature  
Relative humidity  
Operating altitude  
Storage altitude  
Operating ESD  
Storage ESD  
-40°–70°C (40°–158°F)  
15%-90% no condensing  
Up to approx. 3,000m (10,000ft)  
Up to approx. 12,000m (40,000ft)  
+8kV  
+15kV  
1-5  
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Chapter 1 - Before You Begin  
Table 1-1: MGC+ Specifications  
System  
Communications  
MGC+50/MGC+100  
Integrated scheduler  
Yes  
Yes  
API to 3rd party  
reservation systems  
Conference Setup  
MGC+50/MGC+100  
(Scheduled/  
Unscheduled)  
Meet Me Per  
•
•
•
•
Conference  
MCU  
Channel  
Party  
Dial-out/Dial-in  
Yes  
Diagnostics  
MGC+50/MGC+100  
Power up  
On-line  
Yes  
Yes  
Yes  
Remote  
Serviceability /  
Reliability  
MGC+50/MGC+100  
Hot plug-in modules  
Yes  
Yes  
Front panel removable  
modules  
Power Supply  
MGC+50  
MGC+100  
AC Input  
100-240 VAC,  
50/60 Hz  
100-240 VAC,  
50/60 Hz  
1-6  
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MGC+ Hardware and Installation Manual  
Table 1-1: MGC+ Specifications  
Power Consumption  
MGC+50  
AC Voltage - 10Amp  
at 100 VAC, 5 Amp at  
240 VAC protected by  
a 15 Amp circuit  
breaker.  
MGC+100  
AC Maximum Power  
consumption  
AC Voltage - 15 Amp at  
100 VAC and 7.5 Amp at  
240 VAC protected by a 15  
Amp circuit breaker.  
MGC+ Control Unit  
A new Control unit is located in Slot A of the front panel of the MGC+.  
The Control Unit has the following features:  
•
•
•
•
•
•
•
•
Support of both XPEK and pSOS Operating Systems (OS)  
XPEK or pSOS swappable Operating Systems (OS)  
MGC Manager Version 7.0x  
External IDE Compact Flash  
40 GB Hard Drive  
USB port  
CCOM, revision version 5  
New Rear Access I/O  
1-7  
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Chapter 1 - Before You Begin  
Scope of Manual  
This manual describes the MGC+50 and the MGC+100 hardware and  
installation procedure. It is intended for service engineers, system  
administrators and system operators who need to install, configure and  
maintain the MGC+ unit.  
Detailed information on using the system, including starting and shutting  
down the system, is provided in the MGC+ Manager User’s Guide.  
This manual assumes the user has the following knowledge:  
•
Familiarity with Windows 2000®, Windows NT®, and Windows XP®  
environment and interface  
•
Basic knowledge of videoconferencing concepts and terminology  
The MGC+ Hardware and Installation Manual includes the following topics:  
•
Chapter 1 - Before You Begin  
Provides a general description of the MGC+ unit, its main features and  
description of the MGC+ Hardware and Installation Guide.  
•
Chapter 2 - Hardware Description  
This chapter includes the Descriptions of the MGC+50/MGC+100 front  
panel, back panel, and functional modules.  
•
•
•
Chapter 3 - System Architecture  
Describes the system architecture and the data flow.  
Chapter 4 - Hardware Description  
Describes the various components that make up the MGC+ unit.  
Chapter 5 - Maintenance  
Describes the controls and LED indicators and provides maintenance  
procedures.  
•
Appendix A - Interfaces Pin Assignment  
Describes the pinout of the various MGC+ unit connectors.  
1-8  
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MGC+ Hardware and Installation Manual  
Conventions  
Before using this manual, it is important for you to understand the terms and  
conventions used:  
•
•
•
•
•
•
The term “Choose” or “Double-click” is used when you need to activate  
a menu command or a command button in the dialog box.  
The term “Select” or “Click” is used to highlight a part of the window,  
dialog box or menu that you want to be changed with your next action.  
The term “Right-click” is used when you press and release the right  
mouse button to open a pop-up menu.  
The term “Choose OK” means that you can either click the OK button  
with the mouse, or press the <Enter> key on the keyboard.  
Keyboard keys appear in capital letters, between these two symbols  
< >. For example, the Shift key appears as <Shift>.  
The plus sign (+) between two key names indicates that you must press  
and hold down one key while pressing down the second key. For  
example, “press <Alt>+<P> means that you press and hold down the Alt  
key while you press the P key.  
•
Bold type appearing in the text, or in a procedure indicates the word or  
the character that you should type into a text box from the keyboard. It is  
also used to indicate the name of the menu name or command name that  
you should select.  
•
•
Italic type appearing in the text or in a procedure indicates the menu  
name, dialog box name or field name from which an option should be  
selected or into which parameters should be entered.  
Tips and notes appear in a different typeface and between two bars. For  
example:  
This is an example of notes that you may encounter throughout this Hardware  
Manual.  
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Chapter 1 - Before You Begin  
List of Abbreviations  
The following is the list of abbreviations used throughout this manual:  
Table 1-2: Abbreviations  
API  
Application Programming Interface  
CSU  
DPR  
ESD  
HDLC  
HSD  
IP  
Channel Service Unit  
Dual Port Ram  
Electro-Static Discharge  
High-level Data Link Control  
High Speed Data  
Internet Protocol  
ISDN  
LAN  
LED  
LSD  
MCU  
MGC+  
MPI  
Integrated Services Digital Network  
Local Area Network  
Light Emitting Diode  
Low Speed Data  
Multipoint Control Unit  
Multimedia Gateway Control  
Multi Protocol Interface  
Multiplexor  
MUX  
PBX  
PRI  
Private Branch Exchange  
Primary Rate Interface  
Transmission Control Protocol  
Time Division Multiplexing  
TCP  
TDM  
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MGC+ Hardware and Installation Manual  
Installation and Configuration Workflow  
The MGC+ unit installation and configuration process includes the following  
main steps: Hardware Installation, Software Installation, Network Services  
definition and the MGC+ unit cards configuration, and Database  
Configuration. The hardware and software installation, initial IP  
configuration and Network Services definition stages are described in the  
MGC+ Getting Started Guide. The installation and configuration steps and  
their description are detailed in the following flowchart.  
MGC+ Getting Started Guide, Chapter 2  
MGC+ Getting Started Guide, Chapter 2  
MGC+ Getting Started Guide, Chapter 3  
MGC Administrator’s Guide,  
Chapter 2  
MGC+ Getting Started Guide, Chapter 3  
MGC+ Getting Started Guide, Chapter 3  
MGC Manager User’s Guide - Volume II,  
Chapter 6  
Figure 1-3: Installation and Configuration Workflow  
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Chapter 1 - Before You Begin  
1-12  
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2
Hardware Installation  
This chapter describes the unpacking and connection of both the MGC+50  
and the MGC+100, to the ISDN, T1-CAS, H.323, MPI or serial network to  
the operator workstation (PC).  
MGC+ Hardware and Installation Manual,  
Chapter 2  
Hardware  
Installation  
MGC+ Hardware and Installation Manual,  
Chapter 2  
First Entry MCU  
IP Configuration  
MGC Manager  
Software  
Installation  
MGC+ Administrator’s Guide,  
Chapter 2  
MGC Unit  
Software  
Upgrade  
(Optional)  
MGC+ Administrator’s Guide,  
Chapter 2  
MGC Unit  
Definition in the  
MGC Manager  
MGC+ Administrator’s Guide,  
Chapter 2  
MGC+ Administrator’s Guide,  
Chapter 3  
NetworkServices  
Definition  
MGC+ User’s Guide - Volume II,  
Chapter 6  
Database  
Configuration  
Figure 2-1: Installation and Configuration Workflow - Hardware Installation  
2-1  
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Chapter 2 - Hardware Installation  
MGC+100 Hardware Installation  
Inspecting the MGC+/ReadiManager IAM Package Contents  
You should inspect the shipped box and note if it was damaged in any way. If  
the box items show damage, you should file a damage claim with the carrier  
who delivered it.  
When deciding on a setup location for the MGC+, refer to the section  
“System Safety” on page 2-2.  
Disclaimer  
Polycom is not responsible for damage sustained during shipment of this  
product.  
System Safety  
This section includes the follow topics related to system safety:  
•
•
•
“General Safety Precautions” on page 2-2  
“Rack Mount Safety Precautions” on page 2-3  
“Polycom MGC+/ReadiManagerReadiManager Precautions” on page 2-  
3
General Safety Precautions  
Follow these rules to ensure general safety:  
•
Keep the area around the Polycom ReadiManager clean and free of  
clutter.  
•
The MGC+50 weighs approximately 24 kg (53 lbs) and the MGC+100  
weighs approximately 48 kg (106 lbs). When lifting the system, two  
people at either end should lift slowly with their feet spread out to  
distribute the weight. Always keep your back straight and lift with your  
legs.  
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MGC+ Hardware and Installation Manual  
Rack Mount Safety Precautions  
The following precautions should be followed with regards to rack mount  
safety:  
•
Decide on a suitable location for the equipment rack that will hold the  
MGC+/ReadiManager unit. It should be situated in a clean, dust-free  
area that is well ventilated. Avoid areas where heat, electrical noise and  
electromagnetic fields are generated. You will also need it placed near a  
grounded power outlet.  
•
Ensure that the leveling jacks on the bottom of the rack are fully  
extended to the floor with the full weight of the rack resting on them.  
•
•
•
In a single rack installation, stabilizers should be attached to the rack.  
In multiple rack installations, the racks should be coupled together.  
Always make sure the rack is stable before extending a component from  
the rack.  
•
•
•
You should extend only one component at a time - extending two or more  
simultaneously may cause the rack to become unstable.  
Before you install the rails, determine the placement of each component  
in the rack.  
Install the heaviest server components on the bottom of the rack first, and  
then work up.  
•
•
Allow the power supply units to cool before touching them.  
Always keep the rack’s front door and all the blade’s panels and  
components closed when not servicing, to maintain proper cooling.  
Polycom MGC+/ReadiManagerReadiManager Precautions  
The following precautions should be followed with regards to installation of  
the ReadiConvene:  
Use a regulating uninterruptable power supply (UPS) to protect the MGC+  
from power surges and voltage spikes, to keep your MCU and ReadiManager  
IAM operating in case of a power failure.  
2-3  
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Chapter 2 - Hardware Installation  
Unpacking and Positioning the MGC+100  
To unpack and position the MGC+100:  
1. When you receive your MGC+100, inspect the equipment for damage  
and verify that the components match the packing slip. If you did not  
receive a component or if there is damage to the system, notify your  
service representative immediately.  
Wood Packing Case  
Carrying Strap  
Lock in Closed Position  
Lock in Open Position  
Figure 2-1: MGC+100 package  
2. Place the MGC+100 unit on a stable flat surface in a location that meets  
the MGC+ environment requirements, which are:  
—
Operating temperature: 10°–40°C (50°–104°F) or 10°–35°C  
(50°–95°F) when installed in a 19” rack  
—
—
—
Humidity: 15%–90% non-condensing  
Altitude: Up to 3,000m (10,000ft)  
ESD: +8 kV  
3. Release the clasp locks at the bottom, and lift the MGC+100 top cover.  
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MGC+ Hardware and Installation Manual  
Wood Packing Case  
Foam Block  
Foam Block  
Figure 2-2: Unpacking the MGC+100  
4. Lift the MGC+100 unit and remove the packaging material.  
5. Lower the MGC+100 unit, placing it on the surface.  
If the MGC+100 is a standalone unit, place it on a flat surface. If you are  
rack mounting the MGC+100, allow a minimum clearance of 3” above  
the unit.  
2-5  
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Chapter 2 - Hardware Installation  
Mounting the MGC+100 on a 23” Rack  
The MGC+100 can be mounted to a 23” rack using the two mounting plates  
that are pre-installed on the unit.  
1. Make sure that the MCU is turned OFF and it is disconnected from the  
AC power.  
2. Place the MCU in a 23” rack and support it, screw the mounting brackets  
to the rack securing it with bolts and  
self-locking nuts (which the client provides).  
-or-  
If the MGC+100 was shipped without the two mounting plates that are  
usually pre-installed:  
3. Make sure that the MCU power is turned OFF and that it is disconnected  
from the AC power.  
4. With a slotted screwdriver remove the five nylon plug hole covers from  
the MCU side covers.  
5. With an Allen wrench (M4), remove the five screws from the MCU side  
covers.  
6. Remove both MCU side covers.  
front  
remove  
screws  
rear  
7. Remove the plates from the both sides of the MGC by removing the  
appropriate number of functional modules to allow access to the screws.  
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MGC+ Hardware and Installation Manual  
8. Unscrew both MCU the side screws and remove both side plates.  
front  
Remove  
plate  
9. From the inside of the MGC-100, screw the mounting brackets to both  
sides of the MCU, securing the screws in the mounted bracket.  
Screw mounting  
plate from the  
inside of the MGC  
(Front)  
2-7  
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Chapter 2 - Hardware Installation  
10. Place the MCU in a 23” rack and while supporting it, screw the mounting  
brackets to the rack securing it with bolts and self-locking nuts.  
When the unit is installed on a rack, the rack must be properly grounded to the  
central office ground. The rack must be grounded with two-hole compression-  
type connectors using copper conductors (tinned or untinned). Wire, bus bar or  
braided strap connectors are acceptable.  
Mounting the MGC+100 on a 19” Rack  
The MGC+100 can be mounted in a 19” rack using the mounting kit (P/N-  
KIT2026A). It is highly recommended that the 19” rack be located in an air-  
conditioned room.  
When the MGC+100 unit is installed on a 19” rack, environment temprature  
should not exceed 35°C or 95°F.  
Figure 2-3 shows how to mount the MGC+100 on the 19” rack.  
19" Attachment Bar  
Figure 2-3: MCU Rack Mount  
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MGC+ Hardware and Installation Manual  
Because of heat considerations, the MCU must be installed with the Control Unit  
Module placed on the left bottom.  
1. Check that all the parts are in the kit.  
The kit should contain the following items:  
Table 2-1: 19” Rack Mounting Kit  
Item #  
Polycom P/N  
Description  
Quantity  
1
MEC2063A  
23" TO 19" Mounting Bar  
MGC+100 at 90 Degrees  
2
2
3
4
SCR2005A  
WAS2003A  
WAS2004A  
Screw 10-32 x 1/2” Allen S/H  
ST/ST  
8
8
8
Washer M5 Spring Latch Loc.  
ST\ST  
Washer M5 Flat ST/ST  
2. Make sure that the MCU power is turned OFF and it is disconnected  
from the AC power.  
Remove the side covers as described on page 2-4.  
3. If the MCU is a standalone unit, you must first remove the side covers,  
and add the mounting brackets to a 23” rack (see pages 2-4 to 2-6).  
4. Attach the two mounting bars to the MCU as follows:  
a. Fit the spring washer (Item #3) onto the screw (#2).  
Item #3  
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Chapter 2 - Hardware Installation  
b. Fit the flat washer (Item #4) onto the screw.  
Item #4  
c. Take the two mounting bars (Item #1) from the kit and attach them  
to the MGC+100 unit with the screws (with the attached washers, as  
described in step b).  
5. Carefully rotate the MGC+100 counterclockwise 90°, making sure the  
Control Unit is at the bottom left.  
6. While supporting the MGC+100, place it on the 19” rack and screw the  
brackets to the rack, securing it with the screws and nuts supplied with  
the rack.  
2-10  
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MGC+ Hardware and Installation Manual  
Installing the ReadiManager IAM in the MGC+  
Unit  
This section is relevant only to MGC+ systems that are being upgraded to the  
ReadiManager by installing the ReadiManager IAM blade.  
Inspecting the MGC+ ReadiManager Server  
The MGC+ ReadiManager Server can be shipped in two different ways:  
•
•
The MGC+ ReadiManager Server pre-installed on the MGC+  
The MGC+ ReadiManager Server Upgrade Package  
You should inspect the box that it was shipped in and note if it was damaged  
in any way. If the server itself shows damage, you should file a damage claim  
with the carrier who delivered it.  
Contents of the MGC+ ReadiManager Server pre-installed on the  
MGC+  
The ReadiManager Server and I/O are pre-installed on the MGC+ unit. The  
documentation package provided includes:  
•
•
ReadiManager Installation & Documentation CD  
ReadiManager Getting Started Guide and MGC Manager manuals  
Contents of the MGC+ ReadiManager Server Upgrade Package  
The MGC+ ReadiManager Server Upgrade package should contain the  
following:  
•
ReadiManager Server blade (requires installation from the front of  
MGC+)  
•
•
•
Server I/O (requires installation from the rear of MGC+)  
ReadiManager Installation & Documentation CD  
ReadiManager Getting Started Guide and MGC Manager manuals  
2-11  
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Chapter 2 - Hardware Installation  
MGC+ ReadiManager Installation  
The ReadiManager IAM can be installed with the MGC+ unit ON or OFF.  
Refer to Table 2-2 on page 2-12 for more detailed instructions.  
It is important that you follow the sequence of steps as defined in sections  
below.  
Table 2-2: MGC+ Power Setting During ReadiManager IAM Blade Installation  
MGC+ Power  
Do This  
Setting  
OFF  
1
2
Make sure the MGC+ is turned OFF.  
Remove the blank panel from the front of the MGC+  
unit. (This is where the ReadiManager IAM will be  
inserted.)  
See “Removing the Blank Panel from the MGC+ Unit”  
on page 2-14.  
3
Remove the rear I/O panel and install the I/O card on  
the chassis.  
See “Installing the I/O Card for the ReadiManager  
IAM” on page 2-15.  
4
5
Install the ReadiManager IAM.  
See “Inserting the ReadiManager IAM into the MGC+  
Unit” on page 2-16.  
Turn ON the Power switch on the MGC+.  
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MGC+ Hardware and Installation Manual  
Table 2-2: MGC+ Power Setting During ReadiManager IAM Blade Installation  
MGC+ Power  
Setting  
Do This  
ON  
1
Remove the rear I/O panel and install the I/O card on  
the chassis.  
See “Installing the I/O Card for the ReadiManager  
IAM” on page 2-15.  
2
3
Remove the ReadiManager IAM front panel.  
See “Removing the Blank Panel from the MGC+ Unit”  
on page 2-14.  
Install the ReadiManager IAM.  
See “Inserting the ReadiManager IAM into the MGC+  
Unit” on page 2-16.  
The ReadiManager IAM automatically starts/boots  
when inserted into its slot on the backplane.  
Note: If you did not follow this procedure and installed the  
ReadiManager IAM prior to installing the I/O card for the  
ReadiManager IAM, then:  
4
Turn the ReadiManager IAM OFF, by pushing the  
SHUT Down button.  
5
Turn the ReadiManager IAM ON, by pushing the  
SHUT Down button again.  
2-13  
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Chapter 2 - Hardware Installation  
Removing the Blank Panel from the MGC+ Unit  
To remove the blank panel from the front of the MGC+ unit:  
1. Remove the left panel (labelled MGC+) from the front of the MGC+  
unit.  
2. Unscrew four screws as shown in the following illustration.  
When power on the MGC+ is turned ON, you must install the I/O card for the  
ReadiManager IAM card before installing the ReadiManager IAM.  
Figure 2-4: MGC+ 50/100 front panels removed  
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MGC+ Hardware and Installation Manual  
Installing the I/O Card for the ReadiManager IAM  
To install the I/O card for the ReadiManager IAM:  
1. Remove the right rear I/O cover by loosening the four screws as shown  
in the following illustration.  
Figure 2-5: MGC+ 50/100 rear panel detachment  
2. Remove the I/O card for the ReadiManager IAM from its package and  
insert it in its slot as shown in the following illustration.  
Figure 2-6: MGC+ ReadiConvene IAM rear I/O Insertion  
3. Push the I/O card firmly into the MGC+ backplane. Make sure its is  
properly seated in its slot.  
4. Tighten the four screws that secure the I/O card to the MGC+ chassis.  
5. Attach the required cables or connections to the I/O card for the  
ReadiManager IAM.  
2-15  
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Chapter 2 - Hardware Installation  
Inserting the ReadiManager IAM into the MGC+ Unit  
To insert the Polycom ReadiConvene IAM blade:  
1. After removing the left front panel from the MGC+ chassis, unpack the  
ReadiManager IAM.  
2. Insert the ReadiManager IAM into its slot and carefully slide it firmly  
into the backplane, making sure that it is properly seated in its slot.  
Figure 2-7: ReadiManager IAM insertion on the MGC+ unit  
Tighten the four screws, securing the ReadiManager IAM to the MGC+  
chassis.  
When power on the MGC+ is ON, the ReadiManager IAM automatically boots  
when it is inserted into its housing on the backplane. For more information see  
Table 2-2 on page 2-12.  
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MGC+ Hardware and Installation Manual  
Connecting and Setting Up the MGC+100  
Use the MGC+100 rear panel diagram below for reference.  
DEBUG  
LAN  
VGA  
MOUSE  
COM2  
COM1  
LINE IN  
KEYBOARD  
COM1  
KEYBOARD  
MOUSE  
COM2  
VGA  
LAN  
ALARMS  
Main Switch  
AC Inlet  
Fan  
Figure 2-8: MGC+100 Rear Panel with External Connectors  
To Connect the MGC+100 to the network and power source and set up  
the system the following procedures are performed:  
•
•
•
Connecting the MGC+ unit to the power source (AC inlet)  
Connecting the MGC+ unit to the LAN Network  
Connecting the MGC+ unit to the Operator Workstation (PC) directly via  
RS-232 (optional) using COM2  
•
Connecting the MGC+ unit to the network(s)  
MGC+100 Dongle  
MGC+100 is shipped with a serial dongle and is installed on COM1 of the  
Control Module rear I/O panel. A special bracket ensures that the dongle  
remains in its fixed position. The dongle is required for normal operation of  
the MCU. If the dongle is missing, please contact support.  
2-17  
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Chapter 2 - Hardware Installation  
Connecting to the power source  
You can connect to an AC Inlet power supply at your site. It is important to  
follow these steps.  
The following restrictions apply to the conductors and connectors that may be  
used to ground the unit when rack mounted:  
•
When using bare conductors, they must be coated with an appropriate  
antioxidant compound before crimp connections are made. Tinned,  
solder-plated or silver-plated connectors do not have to be prepared in  
this manner.  
•
•
The same bolt assemblies should not secure multiple connectors.  
Listed fastening hardware must be compatible with the materials being  
joined and must be preclude loosening, deterioration and electrochemical  
corrosion of the hardware and joint materials.  
To connect to the AC Inlet:  
1. Make sure the power switch is OFF. Insert the power cable into the  
power connector on the rear panel of the MGC+100 unit.  
Main Switch  
AC Inlet  
2. Insert the power cable into the power source socket.  
3. Turn on the power by pressing on the power switch located on the rear  
panel of the MGC+100 unit.  
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MGC+ Hardware and Installation Manual  
Connecting the MGC+100 to the LAN Network  
Connect one end of a network cable to the LAN connector on the rear I/O  
panel of the MGC+100 Control Module and the other end to the network.  
LAN  
VGA  
MOUSE  
KEYBOARD  
Connecting the MGC+100 to the Operator Workstation (PC) Directly  
via RS-232 (Optional)  
Connect one end of an RS-232 cable to the COM2 connector on the rear panel  
of the MGC+100 Control Module and the other end to the serial port of the  
operator station (see RS-232 Pin Assignment, A-3).  
MOUSE  
KEYBOARD  
COM1  
COM2  
ALARMS  
2-19  
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Chapter 2 - Hardware Installation  
Connecting the MGC+100 to the Network  
To connect the MGC+100 to the ISDN network or T1-CAS Network:  
The ISDN network is optional. If the MGC+100 has to be connected to the public  
ISDN network then an external CSU or similar equipment is needed.  
T1-CAS network is optional. It allows you to connect Audio Only participants to  
conferences via T1-CAS lines. It uses the same network connections as ISDN  
and the procedure described below is applicable to both ISDN and T1-CAS  
lines.  
•
Connect the 8-pin RJ-45 connector of the network cable to the NET  
RJ-45 jack on the rear panel of the MGC+100. Repeat this step for each  
of the ISDN network lines to be connected to the Network Interface card  
installed in the MCU.  
ISDN Network connection  
for 4 spans  
ISDN network  
connection  
ISDN Network connection  
for 8 spans  
Figure 2-9: ISDN network connection  
Leased lines should be connected using an adapter with a screw  
connector with solid conductor wires or a similar adapter.  
•
Connect one side of the adapter to the NET RJ-45 jack on the rear panel  
of the MGC+100. Then connect the leased line wires to the other side of  
the adapter.  
The ISDN and T1-CAS network properties must be defined in the Network  
Services. For details, see the MGC+ Administrator’s Guide, Chapter 3.  
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MGC+ Hardware and Installation Manual  
To connect the MGC+100 to the H.323 network:  
If an H.323 network Interface card is installed in the MGC+100, connect the  
8-pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack  
on the rear panel of the MGC+100.  
Figure 2-10: LAN H.323 network connection  
The H.323 network properties must be defined in the Network Services, For  
details, see MGC+ Administrator’s Guide, Chapter 3.  
MPI-4/8 Hardware Installation for the MGC+100  
The MPI-4/8 (Multi Protocol Interface) Network Interface card is inserted  
into the MGC+100 unit.  
The MPI box may be mounted on top of the MGC+100 using mounting  
brackets, or on a separate 19” or 23” rack, as can be seen in Figure 2-7. When  
installed on a 19” rack, the MPI box can be mounted directly on the rack.  
When installed on a 23” rack, a mounting plate must be used. If the  
MGC+100 is rack mounted, there must be at least 6” free space above the  
MGC+100 to be able to install the MPI Box on top of the MGC+ unit.  
2-21  
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Chapter 2 - Hardware Installation  
MCUs in  
23" Rack  
MPI Boxes  
in 19" Rack  
MPI Boxes  
in 23" Rack  
Mounting  
Plate  
R
POLYCOM  
MGC+  
Stby  
S
tby  
ail  
ti  
Stby  
S
tby  
Fail  
ti  
S
F
tby  
ai  
S
tby  
ail  
cti v  
S
t
by  
ail  
Active  
Stby  
Fail  
Stby  
ai  
Active  
S
tby  
ai  
Activ  
S
tby  
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1
2
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Power  
In Out  
Power  
In Out  
Power  
In Out  
Figure 2-11: MPI Box rack mounting options  
To install the MPI-4/8 Network Interface Module:  
1. Slide the MPI-4/8 Network Interface module into a free slot in the MGC  
front panel.  
2. Push the MPI-4/8 Network Interface module firmly into the Backplane,  
making sure it is properly seated in its slot.  
3. Tighten the screws on the front panel of the MGC-100 that secure the  
MPI-4/8 Network Interface module.  
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To install the MPI Box on Top of the MCU:  
1. Turn OFF power to the MCU and unplug it from AC power.  
2. If the MCU is rack mounted, disconnect all the external cables, dismount  
the MCU from the rack and place it on a desktop or work table.  
If it is a standalone unit, remove the MCU side panels.  
3. Remove the two Phillips screws on each side of the MCU (near the rear  
panel).  
front  
remove  
screws  
rear  
4. Place the mounting bracket on top of the MCU aligning it against the  
screw openings as shown below and tighten the screws.  
front  
tighten  
screws  
rear  
5. Mount the bracket on the other side of the MCU (repeat step 4).  
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Chapter 2 - Hardware Installation  
6. Place the MPI box with its four 160-pin connectors facing the MCU front  
panel between the two mounting brackets. Secure it with the screws  
supplied with the MPI Box.  
rear  
front  
7. If the MCU is standalone, reassemble the side panels.  
If the MCU is rack mounted, mount the unit on the rack and connect all  
the external cables.  
8. Using the cable provided with the MPI kit, connect the 160-pin  
connector to Port A of the MPI-8 Network Interface front panel. Connect  
the other end of the cable to a (Ports 1-4) 160-pin connector of the MPI  
Box; by doing this procedure we have utilized the MPI Box as a MPI-4.  
9. Using a second cable, connect the angled 160-pin connector to Port B of  
the MPI-8 Network Interface front panel. Connect the other end of the  
cable to B (Ports 5-8) 160-pin connector of the MPI Box.  
Using this procedure we have utilized the MPI Box as a MPI-8.  
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PORTS  
1-4  
PORTS  
9-12  
PORTS  
13-16  
PORTS  
5-8  
MPI-8  
MPI-8  
A
A
B
B
10. Connect the serial cable running from the DCE to the appropriate 37-pin  
connector on the rear panel of the MPI Box. If dialing is used, connect  
the appropriate cable from the DCE to the 25-pin connector on the rear  
panel of the MPI Box.  
Whenever the MGC+ unit is used as a DCE and connected straight to an  
endpoint the serial data stream flows from the endpoint (DTE) through  
the serial connector to the MPI box. The connections stay the same,  
meaning; the endpoint is connected to the back of the MPI box by way of  
the 37-pin connector, and the other side of the MPI box is then connected  
by way of the 160-pin connector to the MPI card in the MGC+ unit.  
•
•
If V.35 or RS-530 cable is used, attach the special adapter (provided with the  
kit) to the 37-pin prior to connecting the serial cable from the DCE.  
The serial (MPI) network properties must be defined in the Network  
Services, For details, see MGC+ Administrator’s Guide, Chapter 3.  
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Chapter 2 - Hardware Installation  
MGC+50 Hardware Installation  
Unpacking and Positioning the MGC+50  
To unpack and position the MGC+50:  
1. When you receive your MGC+50, inspect the equipment for damage and  
verify that the components match the packing slip. If you did not receive  
a component or if there is damage to the system, notify Polycom  
immediately.  
Wood Packing Case  
Carrying Strap  
Lock in Closed Position  
Lock in Open Position  
Figure 2-12: MGC+50 package  
2. Place the MGC+50 unit on a stable flat surface in a location that meets  
the MGC+50’s environment requirements, which are:  
—
—
—
—
Operating temperature: 10°–40°C (50°–104°F)  
Humidity: 15%–90% noncondensing  
Altitude: Up to 3,000m (10,000ft)  
ESD: +8 kV  
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MGC+ Hardware and Installation Manual  
3. Release the clasp locks at the bottom, and lift the MGC+50 top cover.  
Wood Packing Case  
Foam Block  
Foam Block  
Figure 2-13: Unpacking the MGC+50  
4. Lift the MGC+50 unit and remove the package base.  
5. Lower the MGC+50 unit, placing it on the surface.  
If you are rack mounting the MGC+50, allow a minimum clearance of 3  
inches above the unit.  
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Chapter 2 - Hardware Installation  
Mounting the MGC+50 on a Rack  
The MGC+50 can be mounted in a 19” rack using two mounting plates (Kit  
2012A). The side plates are usually mounted when shipped, but if not, follow  
the directions below to install the mounted plates on the MGC+50 and then  
mount the MGC+50 on the 19” rack.  
To install and mount the MGC+50:  
1. Make sure that the MGC+50 power is turned OFF and it is disconnected  
from the AC power.  
2. Remove the five nylon plug hole covers from the MGC+50 protective  
side covers (using a slotted screwdriver).  
3. Using an Allen wrench (M4), remove the five screws from the MGC+50  
side covers.  
4. Remove the MGC+50 side covers from both sides.  
remove  
side cover  
front  
5. To remove the plate from both MGC+50 sides, the side screws have to be  
removed. To remove the screws from the left side of the MGC+, the  
Control Board, Server panel, Functional modules and power supply must  
be removed first. These procedures are described in Chapter 5 of this  
manual. For detailed procedures, see Chapter 5, “Replacing the Main  
Control Module” on page 5-17. For instructions on how to remove the  
power supply, see Chapter 5, “Replacing the Power Supply Module on  
the MGC+50” on page 5-11.  
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6. Once the, Server panel, Main Control Module, the power supply module  
and the boards are removed, unscrew the side screws from inside the  
MGC+50, and then remove the plate from both MGC+50 sides.  
front  
Remove  
plate  
7. To remove the plate from the right side of the MGC+ unit remove the  
appropriate number of functional modules to allow access to the screws.  
8. From the inside of the MGC+50, screw the mounting bracket to the side  
of the MGC+50, securing the screws in the mounted nuts.  
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Chapter 2 - Hardware Installation  
Screw mounting  
plate from the  
inside of the MGC+  
9. Insert the functional modules removed earlier into the MGC+50.  
10. Mount the Power Supply module, Main Control Module and Server  
panel back in their place as described in Chapter 5, “Replacing the Main  
Control Module” on page 5-17. Also see Chapter 5, “Replacing the  
Power Supply Module on the MGC+50” on page 5-11.  
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11. Place the MGC+50 in a 19” rack and while supporting it, screw the  
mounting brackets to the rack securing it with nuts.  
MPI Box  
R
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OLYCO  
M
MGC+  
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Chapter 2 - Hardware Installation  
Connecting and Setting Up the MGC+50  
Use the MGC+50 rear panel diagram below for reference.  
DEBUG  
LAN  
VGA  
MOUSE  
COM2  
COM1  
LINE IN  
KEYBOARD  
COM1  
KEYBOARD  
MOUSE  
COM2  
VGA  
LAN  
ALARMS  
Figure 2-14: MGC+50 Rear Panel with External Connectors  
To connect the MGC+50 to the network and power source and set up the  
system the following procedures are performed:  
•
•
•
Connecting the MGC+ unit to the power source (AC inlet)  
Connecting the MGC+ unit to the LAN Network (C.B., I/O)  
Connecting the MGC+ unit to the Operator Workstation (PC) directly via  
COM2 (optional)  
•
Connecting the MGC+ unit to the network(s)  
MGC+50 Dongle  
MGC+50 is shipped with a serial dongle and is installed on COM1 of the  
Control unit’s rear I/O panel. A special bracket ensures that the dongle  
remains in its fixed position. The dongle is required for normal operation of  
the MCU. If the dongle is missing, please contact support.  
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Connecting to the Power Source  
To connect to the AC Inlet:  
1. Make sure that the power switch located on the rear panel of the MGC+  
unit is off.  
2. Insert the power cable into the power connector on the rear panel of the  
MGC+50 unit.  
Main Switch  
AC Inlet  
3. Insert the power cable into the power source socket.  
4. Turn on the power by pressing on the power switch located on the rear  
panel of the MGC+50 unit.  
If the unit is rack mounted, the single-point ground on the MCU-50 must  
be connected to the rack with a single conductor and attached so that it  
prevents loosening.  
The following restrictions apply to the conductors and connectors that  
may be used to ground the unit when rack mounted:  
—
When using bare conductors, they must be coated with an  
appropriate antioxidant compound before crimp connections are  
made. Tinned, solder-plated or silver plated connectors do not have  
to be prepared in this manner.  
—
—
Multiple connectors should not be secured with the same bolt  
assemblies.  
Listed fastening hardware must be compatible with the materials  
being joined and must avoid loosening, deterioration and  
electrochemical corrosion of the hardware and joint materials.  
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Chapter 2 - Hardware Installation  
Connecting the MGC+50 to the LAN Network  
Connect one end of a network cable to the LAN connector on the rear I/O  
panel of the MGC+ Control Module and the other end to the network.  
LAN  
VGA  
MOUSE  
KEYBOARD  
Connecting the MGC+50 to the Operator Workstation (PC) Directly  
via RS-232 (Optional)  
Connect one end of an RS-232 cable to the COM2 connector on the rear I/O  
panel of the MGC+ Control Module and the other end to the serial port of the  
operator station (See RS-232 Pin Assignment, A-3).  
MOUSE  
KEYBOARD  
COM1  
COM2  
ALARMS  
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MGC+ Hardware and Installation Manual  
Connecting the MGC+50 to the PSTN Network  
To connect the MGC+50 to the ISDN network and T1-CAS network:  
This is an optional Network Interface Card. If the MGC+50 has to be connected  
to the public ISDN network then an external CSU or where required, similar  
equipment is needed.  
T1-CAS network is optional. It allows you to connect Audio Only participants to  
conferences via T1-CAS lines. It uses the same network connections as ISDN  
and the procedure described below is applicable to both ISDN and T1-CAS  
lines.  
•
Connect the 8-pin RJ-45 connector of the network cable to the NET  
RJ-45 jack on the rear panel of the MGC+. Repeat this step for each of  
the ISDN network lines to be connected to the Network Interface card  
installed in the MCU.  
ISDN Network connection  
for 4 spans  
ISDN network  
connection  
ISDN Network connection  
for 8 spans  
Figure 2-15: ISDN network connection  
•
Leased lines should be connected using an adapter with a screw  
connector for solid conductor wires with a diameter in the range 0.4 to  
0.6 mm. Use Polycom P/N CBL0602A or similar adapter.  
Connect one side of the adapter to the NET RJ-45 jack on the rear panel  
of the MGC+. Then connect the leased line wires to the other side of the  
adapter.  
The ISDN and T1-CAS network properties must be defined in the Network  
Services. For details, see the MGC+ Administrator’s Guide, Chapter 3.  
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Chapter 2 - Hardware Installation  
Connecting the MGC+50 to the H.323 Network  
If an H.323 network Interface card is installed in the MGC+, connect the 8-  
pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack on  
the rear panel of the MGC+.  
Figure 2-16: LAN H.323 network connection  
The H.323 network properties must be defined in the Network Services Wizard,  
for details, see MGC+ Quick Start Guide, Chapter 3.  
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MPI-4/8 Hardware Installation for the MGC+50  
The MPI-4/8 Network Interface card is inserted into the MGC+50.  
The MPI box is mounted on a 19” rack together with the MGC+50, as can be  
seen in Figure 2-13. The MPI box is mounted directly on the rack, above the  
MGC+50, leaving at least 6” free space above the MGC+50. For details, on  
how to mount the MGC+50, refer to the section “Mounting the MGC+50 on a  
Rack” on page 2-28.  
MPI Box  
in 19" Rack  
MPI Box  
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Figure 2-17: MPI Box mounting option  
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Chapter 2 - Hardware Installation  
To install the MPI-4/8 Network Interface Module:  
1. Slide the MPI-8 Network Interface module into a free slot in the MCU  
front panel.  
2. Push the MPI-8 Network Interface module firmly into the Backplane,  
making sure it is properly seated in its slot.  
3. Tighten the screws on the front panel of the MGC+50 that secure the  
MPI-8 Network Interface module.  
To mount the MPI Box on the Rack for the MGC+50:  
1. Place the MPI box with is four 160-pin connectors facing the MGC+50  
front panel between the two rails of the rack. Secure it to the rack with  
the screws supplied with the MPI Box.  
PORTS  
1-4  
PORTS  
9-12  
PORTS  
5-8  
PORTS  
13-16  
2. Connect all the external cables to the MPI box:  
Using the cable provided with the MPI kit, connect the 160-pin  
connector to Port A of the MPI-4/8 Network Interface front panel.  
Connect the other end of the cable to a (Ports 1-4) 160-pin connector of  
the MPI Box. Again, by doing this procedure we have utilized the MPI  
Box as a MPI-4.  
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Using a second cable, connect the 160-pin connector to Port B of the  
MPI-4/8 Network Interface front panel. Connect the other end of the  
cable to B (Ports 5-8) 160-pin connector of the MPI Box. By doing this  
procedure we have utilized the MPI Box as a MPI-4/8.  
PORTS  
1-4  
PORTS  
5-8  
R
POLYCOM  
MGC+  
A
A
Line  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
B
B
Line  
Line  
1
2
Power  
Out  
3. Connect the serial cable running from the DCE to the appropriate 37-pin  
connector on the rear panel of the MPI Box (If the endpoint is a DCE,  
then connect this to the MPI Box. For more information, refer to chapter  
4). If dialing is used, connect the appropriate cable from the DCE to the  
25-pin connector on the rear panel of the MPI Box.  
•
•
If the V.35 or RS-530 cable is used, attach the special adapter (provided with  
the kit) to the 37-pin prior to connecting the serial cable from the DCE.  
The serial (MPI) network properties must be defined in the Network  
Services, for details, see MGC+ Administrator’s Guide, Chapter 3.  
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Chapter 2 - Hardware Installation  
Compact Flash Memory Use on the MGC+  
The Main Control Unit’s Compact Flash port is used to perform the following  
tasks:  
•
•
•
pSOS Rescue Disk  
Contact you next level of support  
Swapping the Operating System (OS)  
Contact your next level of support  
First Entry MGC+ Control Unit (CU) IP Configuration using:  
—
—
—
—
pSOS OS  
XPEK OS  
The Compact Flash slot is located on the Main Control Module, below the  
Flash Memory LED. When the Flash Memory is active, the LED  
flashes.  
Eject Button  
Flash Memory Card  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
Line  
Line  
Line  
Line  
1
2
3
4
Power  
In Out  
Power  
In Out  
Power  
In Out  
Do not press the Reset button or turn the system OFF while the Flash Memory  
LED is flashing.  
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Inserting the Compact Flash Disk into the MGC+ Compact Flash slot:  
1. Insert the Flash Memory disk into the slot.  
2. Press the Reset button on the MGC+.  
The following menu appears on your monitor’s screen.  
For first entry LAN/IP configuration please refer to the section “First Entry MGC+  
Control Unit (CU) IP Configuration” on page 2-43.  
3. Select an option as explained in the following sections.  
Rescue Disk (pSOS)  
With the pSOS operating system the user is able to perform a Rescue  
Operation using the compact flash disk inserted in the Compact Flash port.  
The advantage of the Rescue Operation is that it enables a short recovery time  
on the system should any failure occur.  
To select this option press 2, Perform rescue operation. For more information  
contact your next level of support.  
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Chapter 2 - Hardware Installation  
Swapping the Operating System (OS)  
The Compact Flash enables you to switch between two types of operating  
systems:  
•
•
pSOS  
XPEK  
To select this option press 3, Change MGC+ OS. For more information  
contact your next level of support.  
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MGC+ Hardware and Installation Manual  
MGC+ Software Installation and Configuration  
The MGC+50/MGC+100 requires basic configuration before you can start  
running conferences. You are required to configure the ReadiConvene IAM  
and MGC+ Control Unit (CU) blades on the MGC+.  
Initial ReadiConvene IAM Configuration  
For entering system configuration settings and deploying the ReadiConvene  
IAM to your Network refer to the Polycom ReadiConvene IAM Getting  
Started Guide, Chapters 1 and 2.  
First Entry MGC+ Control Unit (CU) IP Configuration  
This section describes the first entry IP Configuration for pSOS and XPEK  
Operating Systems.  
The MCU is delivered with a Compact Flash disk that includes a LAN.cfg file  
with a default IP address. First, you have to change the default address to the  
IP address appropriate for the LAN. This procedure is described below.  
Methods that can be used for a first Entry IP Configuration are:  
•
•
•
LAN.CFG File  
Cross over cable  
Keyboard and mouse  
Method 1 - Using a Compact Flash with the Updated LAN.CFG  
File:  
You are required to use a USB to Compact Flash adaptor (supplied with the  
MGC+ accessory kit) connected to any PC. For first entry configuration you  
are required first to alter the LAN.cfg file and change the default IP address  
on the Compact Flash disk.  
1. Insert the Compact Flask disk into the Compact Flash adaptor and open  
using a text editor application, the LAN.cfg file stored on the Compact  
flash card. The LAN.cfg file contains three parameters that require  
editing:  
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Chapter 2 - Hardware Installation  
2. Edit the file with the following text:  
Make sure no blank spaces are inserted at the end of each line.  
IP_ADDRESS = aaa.bbb.ccc.ddd  
NETWORK_MASK = aaa.bbb.ccc.ddd  
DEFAULT_GATEWAY = aaa.bbb.ccc.ddd,  
where aaa, bbb, ccc, and ddd are numbers between 0 to 255, as follows:  
Table 2-3: IP Configuration Options  
Option  
Description  
IP Address  
Enter the IP address allocated to the MCU by the network  
administrator.  
Subnet Mask  
Enter the subnet mask IP Address as defined by the network  
administrator.  
Default Gateway  
Enter the default gateway IP Address as defined by the network  
administrator.  
3. Save the changes in the LAN.CFG file.  
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4. Use the Microsoft Unplug or Eject Hardware procedure prior to  
removing the Flash disk.  
5. Remove the Compact Flash Memory disk from the reader.  
6. Insert the Compact Flash disk into the MGC+ Control Module Compact  
Flash slot.  
7. Press Reset on the MGC+.  
The Options menu appears.  
8. Press “1, Change the MGC+ IP Setting”  
If no monitor is connected, the automatic default time-out selects option 1.  
The Flash Memory LED must be active and flash.  
9. Press Eject, after the message “1 File(s) copied” is displayed  
onscreen and the Flash Memory LED no longer flashes.  
Do not press the Reset button while the Flash Memory LED is flashing.  
10. Remove the Compact Flash card from the MGC+ Control Module  
compact flash slot and press Reset on the MGC+.  
11. Connect the MCU to your site’s network.  
12. In the MGC+ Manager, define a new MCU using the IP address you have  
entered in the LAN.CFG file:  
a. In the Browser pane, right-click the MCUs Network icon, and then  
click New MCU.  
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The Add MCU dialog box opens.  
b. In the Name box, enter the name of the MCU. Specify a name that  
clearly identifies the MCU.  
c. In the IP Address box enter the default IP Address of the MCU as  
entered in the LAN.CFG file.  
d. Click OK.  
The new MCU is added to the MCUs list.  
Method 2 - Using a Cross-over Cable and a Laptop to Connect  
to the MCU  
1. Connect a cross-over LAN or Hub cable between the laptop and the rear  
panel of the MCU.  
2. On the laptop, click Control Panel ->Network Connection->Local  
Area Connection.  
3. In the Local Area Connection - General dialog box, click the  
Properties button.  
4. In the Local Area Connection Properties dialog box, click Use the  
following IP address, and define the address of the laptop as part of the  
same network segment as the MCU. For example, 129.254.4.7.  
5. Click OK.  
6. Install the MGC+ Manager application and start this application.  
7. Define a new MCU using the default IP address:  
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a. In the Browser pane, right-click the MCUs Network icon, and then  
click New MCU.  
The Add MCU dialog box opens.  
b. In the Name box, enter the name of the MCU. Specify a name that  
clearly identifies the MCU.  
c. In the IP Address box, enter the default IP Address of the MCU  
(129.254.4.8).  
d. Click OK.  
The new MCU is added to the MCUs list.  
8. In the MCUs list, double-click the MCU icon to connect to it.  
9. Modify the IP address of the MCU unit as allocated by the network  
administrator (this is the IP address with which the MCU is identified on  
the LAN).  
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Chapter 2 - Hardware Installation  
a. Right-click the MCU icon, and then click IP Configuration.  
The IP Configuration dialog box opens.  
b. If required modify the parameters and click OK.  
10. Press Reset on the MGC+.  
11. Disconnect the MCU from the local network that you have created.  
12. Connect the MCU to your site’s network.  
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MGC+ Hardware and Installation Manual  
Method 3 - Defining the IP address using a Keyboard and  
Mouse:  
1. Access the Main Control Module rear I/O panel.  
DEBUG  
LAN  
VGA  
MOUSE  
KEYBOARD  
COM1  
LINE IN  
COM2  
ALARMS  
2. Press the Reset button on the MCU.  
The command line is displayed.  
3. Type C:\>dir mcu\cfg and press Enter.  
4. Type C:\>\mcu\cfg>edit lan.cfg and press Enter.  
The Edit screen opens displaying the IP configuration parameters.  
5. Enter the new IP Address.  
If required, modify the Subnet Mask and the Default Gateway values.  
6. Save the new IP configuration and exit the DOS editor.  
7. Press the Reset button the MGC+.  
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Chapter 2 - Hardware Installation  
Formatting and Creating a New Compact Flash  
Boot File  
The user can create a new boot file on a Compact Flash Disk, by running the  
file named system.exe located in the Compact Flash System folder of your  
MGC+ Software & Documentation CD.  
To create a new Compact Flash boot file:  
You are required to use a USB to Compact Flash adaptor (supplied with the  
MGC+ accessory kit) connected to any PC.  
1. Insert the Compact Flask disk into the Compact Flash adaptor.  
Do not use the Windows Format option to create a Compact Flash Boot disk.  
2. In the MGC+ Software & Documentation CD, browse to the Compact  
Flash System folder.  
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MGC+ Hardware and Installation Manual  
3. Double-click the System.exe file and the WinImage Self Extractor dialog  
box appears.  
4. Select from the Disk drop-down box a letter for your Compact Flash  
disk, and click OK.  
After a few seconds a new Compact Flash Boot disk is created.  
5. Copy the the files located in the Compact Flash Content CD Folder onto  
the Compact Flash Disk.  
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Chapter 2 - Hardware Installation  
Clocking  
To be able to work with the network connected to the MCU you need to  
synchronize the system clock with the network clock. This is done in two  
steps:  
•
•
Selecting the network type according to which the system clock will  
synchronize. Only one system type may be selected for clocking. The  
clock source is then defined in the “system cfg”.  
Selecting the spans of the selected network that will act as Master and  
Backup clocks. The Master and the Backup clock must be set on spans of  
the same network type.  
For more details regarding the clocking setup, see the MGC+ Administrator’s  
Guide, “Clocking” in Chapter 5.  
You have completed the hardware installation. The next step in the  
installation procedure is to install the MGC+ Manager software. For more  
information, refer to the MGC+ Administrator’s Guide, Chapter 2.  
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3
System Architecture  
The MGC+ unit is designed to provide maximum reliability, minimum  
interruptions, and effortless maintenance. Removable active components are  
accessed via the front panel to provide quick and easy serviceability.  
Redundant power supplies are easily accessed via the front panel, ensuring a  
fail safe operation (the MGC+50 power supply is not redundant, therefore  
not hot-swappable). Network connections on the back of the unit enable  
easy module removal and prevent accidental disconnection.  
All Functional Modules are front-removable and hot-swappable, allowing  
servicing functions to be performed while the system is in operation.  
The operator accesses the MGC+ unit from an operator work station which  
is connected to the MGC+ unit via an Ethernet interface or an RS-232  
interface, as shown in Figure 3-1, “MGC+ interfaces”.  
LAN / WAN / RS-232  
+
MGC 50  
Operator Workstation  
+
MGC 100  
Figure 3-1: MGC+ interfaces  
Figure 3-2, “MGC+100 Components” on page 3-2 and Figure 3-3,  
“MGC+50 components” on page 3-3 show the internal layout of the  
MGC+100 and the MGC+50, respectively. All of the MGC+ modules and  
cards connect to the backplane.  
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Chapter 3 - System Architecture  
The MGC+ Unit is made up of:  
•
•
Main Control Module, located in Slot A  
Functional Modules, located to the right of the Main Control Module  
when the unit is viewed from the front  
•
•
Power Supply Module, located underneath the Main Control Module and  
Functional Modules  
Input/Output cards, located behind the backplane opposite the Functional  
Modules  
The various modules communicate with each other via the Backplane. The  
Control Bus and Information Highway are implemented on the Backplane.  
Figure 3-2 describes the functional block diagram of the MGC+100  
components.  
Backplane  
H.323 I/O  
H.323 Network I/F  
Rear  
NET I/O  
ISDN Network I/F  
+
MUX  
+
Audio  
MUSIC I/O  
+
Video  
Data  
CU I/O  
Control  
Module  
Front  
Power Supply  
Module  
Figure 3-2: MGC+100 Components  
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MGC+ Hardware and Installation Manual  
Figure 3-3 describes the functional block diagram of the complete MGC+50.  
Backplane  
Rear  
MUSIC I/O  
H.323 I/O  
NET I/O  
CU I/O  
Control  
Module  
Front  
Power Supply  
Module  
Figure 3-3: MGC+50 components  
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Chapter 3 - System Architecture  
Figure 3-4 shows the physical layout of the MGC+100 and how it interfaces  
with the outside world.  
Operator  
Workstation  
Control  
Board I/O  
RS232  
RS232  
Ethernet  
CComm  
and  
C8M  
Hard  
Disk  
External  
Compact Flash  
Serial  
Inteface  
Main  
CPU  
Control  
Board  
CPU Bus  
Control Bus  
Functional  
ISDN  
IP  
MPI  
Network  
Interface  
+
+
+
Audio  
Video  
Module  
MUX  
Data  
Module  
Modules  
Network  
Interface  
Network  
Interface  
H323  
Network  
Module  
Module  
Information Highway  
ISDN  
Network  
MPI  
Box  
DCE  
Figure 3-4: MGC+ unit functional block diagram  
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MGC+ Hardware and Installation Manual  
Information Flow  
Figure 3-5 shows the flow of information within the system.  
The MUX+ Module is not used with the H.323/SIP modules.  
H323/SIP  
I/O Card  
ISDN/T1-CAS  
I/O Card  
ISDN/MPI  
Network  
Interface  
Module  
VoIP Network  
Interface  
Module  
MPI  
+
(includes MUX )  
Main  
Control  
Module  
+
MUX  
Module  
+
+
Audio  
Module  
Video  
Data  
Module  
Module  
Figure 3-5: Signal flow process  
Information enters the MGC+ units from the telecommunications network via  
a PBX or CSU, and into the Network Interface Module. The information is  
then transferred to the MUX+ Module via the Internet.  
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Chapter 3 - System Architecture  
The MUX+ Module transfers the control information to the Main Control  
Module via the Control Bus. The control information is then processed by the  
Main Control Module and a control response forwarded via the Control Bus  
to the appropriate MUX+ Ports.  
The MUX+ module divides the incoming information into audio, video and  
data components, and then forwards the information to the appropriate  
functional module. The information arriving at the MUX+ ports is  
multiplexed into Nx56/64 Kbps channels. These channels can be  
hyperchannels or aggregated channels, depending on the capabilities of the  
network and the receiving terminals.  
The MUX+ Module transfers audio information to the Audio+ Module via the  
Information Highway. The audio information is then processed by the  
Audio+ Module and forwarded via the Information Highway to the  
appropriate MUX+ ports.  
The MUX+ Module transfers video information to the Video+ Module via the  
Information Highway. There are two modes of video operation during a  
conference:  
•
Video Switching, where the speaker is the only person shown on the  
screen. The MUX+ module broadcasts the video of the current speaker to  
all sites involved in the conference.  
•
Continuous Presence, where several participants are shown on the  
screen. The video information is processed by the Video+ Module and  
forwarded via the Information Highway to the appropriate MUX+ Ports.  
The MUX+ Module transfers T.120 data (which follows the ITU-T T.120  
standard for data transfer and application sharing in a multipoint conference)  
to the Data Module via the Information Highway. The data information is  
processed by the Data Module and forwarded to the appropriate MUX+ Ports.  
After the audio, video, and data information has been processed, the  
processed information flows back to the MUX+ module for multiplexing,  
after which it is sent to the network via the Network Interface module and the  
Input/Output card. This information is then transferred to the Network  
Interface module via the Information Highway. The information is then ready  
for transmission.  
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MGC+ Manager Interface  
As shown in Figure 3-4, “MGC+ unit functional block diagram” on page 3-4,  
the Main Control Unit communicates with the MGC+ Manager through the  
LAN interface or the RS-232 interface.  
Power Supply Flow  
For the MGC+100, the AC power inlet is connected by a switch through a 15  
Amp. circuit breaker and then filtered to the power plan and then to the AC  
power supply module. 12V is also delivered to the fans.  
For the MGC+50, the AC power inlet is connected through a 15 Amp. circuit  
breaker and then filtered to the AC power supply module. 12V is also  
delivered to the fans.  
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Chapter 3 - System Architecture  
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4
Hardware Description  
This chapter describes the various components that make up the MGC+ unit.  
The following components are described:  
•
•
•
•
•
•
•
MGC+ ReadiManager IAM  
Control Unit  
Backplane  
Power Supply Modules  
Fans  
Alarms port  
Functional Modules  
—
—
—
—
—
—
—
Net-2/4/8 (ISDN/T1-CAS)  
IP+12, IP+24, IP+48 (H.323/SIP)  
MPI-4, MPI-8  
MUX+10, MUX+20, MUX+40  
Audio+12/24, Audio+24/48, Audio+48/96  
Video+8  
Data (T-120)  
•
Input/Output (I/O) cards  
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Chapter 4 - Hardware Description  
MGC+100 Components Location  
Figure 4-1 shows the front panel of the MGC+100. The front panel provides  
access to the Main Control Module, the Functional Modules, and the Power  
Supply Modules. Status LEDs on the Main Control Module, Functional  
Modules, and Power Supply Modules indicate the status of the system.  
MGC+ Functional  
Modules  
ReadiConvene IAM  
MGC+ Control  
Unit (CU)  
R
POLYCOM  
MGC+  
Shut Down  
button  
Compact Flash  
slot  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
Universal  
Serial Bus port  
Line  
Line  
Line  
Line  
1
2
3
4
Power  
In Out  
Power  
In Out  
Power  
In Out  
Figure 4-1: MGC+100 front panel  
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MGC+ Hardware and Installation Manual  
Figure 4-2 shows the rear panel of the MGC+100. The rear panel provides  
access to the network I/O card connectors. I/O cards are inserted via the rear  
panel. In addition, the rear panel houses the main power switch, AC inlet,  
fans, the circuit breaker, additional communications ports and alarm ports.  
The alarms port provides dry contacts for major and minor alarms.  
DEBUG  
LAN  
VGA  
MOUSE  
COM2  
LINE IN  
KEYBOARD  
COM1  
COM1  
KEYBOARD  
MOUSE  
COM2  
VGA  
LAN  
ALARMS  
Main Switch  
AC Inlet  
Fan  
Figure 4-2: MGC+100 rear panel with external connectors  
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Chapter 4 - Hardware Description  
Figure 4-3 shows the top view of the inside of the MGC+100. The Main  
Control Module, Functional Modules, and I/O cards are all connected to the  
Backplane. The Power Supply Modules, located underneath the Main Control  
Module and the Functional Modules, are connected to the Powerplane.  
REAR  
Backplane  
I/O Cards  
CU  
Functional Modules  
FRONT  
Figure 4-3: MGC+100 top (internal) view  
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MGC+ Hardware and Installation Manual  
MGC+50 Components Location  
Figure 4-4 shows the front panel of the MGC+50. The front panel provides  
access to the Main Control Module, the Functional Modules, and the Power  
Supply Module. Status LEDs on the Main Control Module, Functional  
Modules, and Power Supply Module indicate the status of the system.  
MGC+ Functional  
Modules  
ReadiConvene IAM  
MGC+ Control  
Unit (CU)  
R
POLYCOM  
MGC+  
Shut Down  
button  
Compact Flash  
slot  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
Universal  
Serial Bus port  
Line  
Line  
1
2
Line  
Line  
Power  
Out  
Figure 4-4: MGC+50 front panel  
Figure 4-6 shows the top view of the inside of the MGC+50. The Main  
Control Module, Functional Modules, and I/O cards are all connected to the  
Backplane. The Power Supply Module is located underneath the Main  
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Chapter 4 - Hardware Description  
Control Module and the Functional Modules, and is connected by wire  
leading to the backplane.  
REAR  
Backplane  
I/O Cards  
CU  
Functional Modules  
FRONT  
Figure 4-5: MGC+50 top (inside) view  
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MGC+ Hardware and Installation Manual  
ReadiManager IAM  
The ReadiManager IAM refers to the Polycom® MGC+ that houses the  
Integrated Application Module (IAM). The ReadiManager provides the  
hardware platform to run the ReadiManager™ software application.  
The ReadiManager has an Intel-based Pentium 4 processor, Compact Flash,  
Hard Disk Drive and 1 GB of Memory. The Control Unit is located in slot A  
of the MGC+, and is the connected to the MCU’s backplane and rear I/O  
panel.  
The front LED’s indicate the status if the module is in operation and  
functioning properly.  
Table 4-1: ReadiManager IAM Specifications  
Physical  
Specifications  
CPU  
Intel Pentium IV 2.8 Ghz.  
Flash Compact  
RAM Memory  
1 GB.  
1 GB. non ECC DDR SDRAM 266 Mhz or higher.  
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Chapter 4 - Hardware Description  
Control Unit  
The Main Control Unit performs the functions of conference setup,  
conference termination, and resource allocation in both the MGC+100 and  
the MGC+50. The Main Control Module has an Intel-based Pentium  
processor, a hard disk drive and 256 MB of memory. The Control Unit is  
located in slot A of the MGC+, and is the connected to the MCU’s backplane  
and Control Module rear I/O panel.  
The front LED’s indicate the status if the module is in operation and  
functioning properly.  
Figure 4-7 shows a block diagram of the Main Control Module.  
Communications  
Controller, C8M,  
CCOM  
Main  
CPU  
Serial  
Interface  
CPU  
BUS  
LAN  
Interface  
Hard  
Disk  
External Flash  
Disk  
Figure 4-6: Block diagram of MCM  
The MGC+ unit can contain different types of functional network cards. The  
Main Control Module operating system includes drivers for all of the cards. The  
Main Control Module’s operating system automatically detects the card type. If  
the card is correctly identified, the system starts up correctly. If the system fails  
to detect any card type, it will start up according to the card type definition in the  
system.cfg file.  
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MGC+ Hardware and Installation Manual  
The Main Control Module includes several connectors. These are connected  
to ports on the chassis. Two types of connectors on the rear panel provide  
connections from the MGC+ to various external systems. These systems  
include reservation systems, local or remote operator consoles, management  
systems and billing systems. One connector is a standard Ethernet LAN  
interface, which support operator workstations operating on LANs via TCP/  
IP. The other connector is an RS-232 interface on COM2, which is used for  
local diagnostics and production purposes.  
An RS-232 interface connector on COM2 the rear panel is provided for  
connecting to operator workstations locally or remotely (via a modem). The  
connector is used for local diagnostics and production purposes.  
The Main Control Module Control Bus connects to the Functional Modules.  
The CCOM and C8M provides the interface between the Main Control  
Module and the Backplane. This module also generates the MCU clock. The  
operating system running on the Main Control Module uses the Processor’s  
internal clock interrupts to set up its real-time clock. Sometimes, the  
operating system’s clock may skip one or several interrupts resulting in a time  
difference between the two clocks. In such a case, the operating system  
compares the two clocks. When a discrepancy between the two clocks is  
detected, the operating system updates its clock according to the Main  
Control processor’s clock. This feature ensures that long-term reservations  
start on time.  
This feature does not correct any time difference between the MGC+ Manager’s  
clock (which is derived from the Windows operating system run on the operator  
workstation) and the MCU internal clock.  
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Chapter 4 - Hardware Description  
Backplane  
The Backplane is based on the “universal slot” concept, where any functional  
card can be inserted in any functional slot. Therefore, different configurations  
are formed based on the users’ port capacity and functionality requirements.  
The Backplane supports hot swapping of Function Modules and all I/O cards.  
In the MGC+100, the front of the Backplane contains 16 slots for Functional  
Modules and an additional slot (Slot 1) for the Main Control Module. The  
back of the Backplane contains 16 slots for I/O cards (15 slots for I/O and 1  
slot for the Main Control Module). The Network Interface Modules  
connected via the Backplane to I/O cards, which connects the system to the  
network. The Power Supply Module provides power to the Backplane via a  
power bus.  
Backplane  
H.323 I/O  
H.323 Network I/F  
Rear  
NET I/O  
ISDN Network I/F  
+
MUX  
+
Audio  
MUSIC I/O  
+
Video  
Data  
CU I/O  
Control  
Module  
Front  
Power Supply  
Module  
Figure 4-7: MGC+100 Backplane  
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MGC+ Hardware and Installation Manual  
In the MGC+50, the front of the Backplane contains eight slots for Functional  
Modules and additional slot (Slot A) for the Main Control Module.The back  
of the Backplane also contains 7 slots for I/O cards and 1 slot for the Main  
Control Module. The Network Interface Module is connected via the  
Backplane to I/O cards, which connect the system to the network. The Power  
Supply Module provides power to the Backplane via a power bus.  
Backplane  
Rear  
MUSIC I/O  
H.323 I/O  
NET I/O  
CU I/O  
Control  
Module  
Front  
Power Supply  
Module  
Figure 4-8: MGC+50 Backplane  
Control Bus  
The MGC+100 and the MGC+50 use the same Control Bus. The Control Bus  
connects the Main Control Module to the Functional Modules. The Control  
Bus is an HDLC bus. A double bus is implemented for redundancy.  
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Chapter 4 - Hardware Description  
Information Highway  
The Information Highway is a high capacity TDM-type bus. It is used by both  
the MGC+100 and the MGC+50. The Information Highway transfers  
information from the Network Interface Modules to the MUX+ Modules and  
from the MUX+ Modules to the Audio+, Video+ and Data Modules except  
during IP calls. In IP calls (H.323 and SIP) the information is transferred  
directly to the IP+ network module and from there to the Audio+, Video+ and  
Data modules.  
Powerplane  
The MGC+100, as opposed to the MGC+50, uses a Powerplane. Up to three  
Power Supply Modules can be plugged into the Powerplane. The Powerplane  
and Power Supply Modules are designed to accommodate hot swapping of  
power supplies.  
In the MGC+50, there is one power supply, which is connected to the backplane  
and fans via wire leads.  
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MGC+ Hardware and Installation Manual  
Power Supply Module  
Both MGC+ units (MGC+100 and MGC+50) operate at 100-240 volts  
AC 50/60 Hz.  
Power Module in the MGC+100  
Three redundant power supplies provide backup for the system to ensure  
multipoint service is not interrupted as a result of any single power supply  
failure. The Power Supply Modules are hot swappable and connect to the  
Powerplane, which is part of the Backplane.  
The power supply automatically senses the AC input voltage.  
Two Power Supply Modules are required to power a full system.  
Three Power Supply Modules are installed on the MGC+, with one power  
supply providing redundancy. Should one power supply fail the other two  
power modules are sufficient to power the MCU.  
The capacity of each power supply module is shown in Table 4-1.  
Table 4-2: MGC+100 Power supply modules capacity  
Voltage (V)  
Maximum current (Amp.)  
5
90  
6.5  
1
12  
-12  
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Chapter 4 - Hardware Description  
Power Module in the MGC+50  
In the MGC+50, the Power Supply Module is not hot swappable. The power  
supply automatically senses the AC input voltage.  
The capacities of the power supply module are shown in Table 4-3,  
“MGC+50 Power supply module capacity”.  
Table 4-3: MGC+50 Power supply module capacity  
Voltage (V)  
Maximum current (Amp.)  
5
120  
13  
.5  
12  
-12  
Power Supply Cord  
The MGC+100 and the MGC+50 use only power supply cords supplied by  
Polycom Inc.or equivalent UL approved cable, rated at a current of up to 15  
A, depending on country standards, for its AC power supply. The following  
specifications are for both the MGC+100 and MGC+50.  
Circuit Breaker (AC Power)  
Currently, MGC+100 and MGC+50 Control Units come equipped with a  
circuit breaker.  
Table 4-4: MGC+ Circuit Breaker Specifications  
MGC+ 50  
MGC+100  
AC Voltage - 10Amp at 100  
VAC, 5 Amp at 240 VAC  
protected by a 15 Amp circuit  
breaker.  
AC Voltage - 15 Amp at 100 VAC  
and 7.5 Amp at 240 VAC  
protected by a 15 Amp circuit  
breaker.  
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MGC+ Hardware and Installation Manual  
The specifications of the Power Supply modules of the MGC+100 is shown in  
“MGC+100 Power supply modules capacity” on page 4-13. The  
specifications of the Power Supply module of the MGC+50 is shown in  
“MGC+50 Power supply module capacity” on page 4-14.  
Fans  
Three fans are mounted at the bottom of the rear panel on the MGC+100.  
Each fan has an alarm, which is monitored by that Main Control Module. Two  
fans are mounted at the bottom of the rear panel on the MGC+50. On both  
MCU’s the system can generate an alert upon failure. For configuration  
requirements and information, contact your next level of support.  
Alarms Port  
The main control module I/O module includes an Alarm port. The Alarm port  
on the rear panel of the MGC+-100 can be connected with the MCU’s fans  
and power supplies.  
The Alarm port on the rear panel of the MGC+50 can only be connected to  
the MCU’s fans.  
For more information see, “Front Panel LEDs” on page 5-4.  
The Alarms port has the following specifications:  
•
•
Voltage rating: 60 V DC maximum  
Current rating: 0.2 A maximum  
On the MGC+50, Alarms ports are in use for the two fans.  
The pin assignment of the Alarm port are specified in the section“Alarms  
Port Pin Assignment” on page A-2.  
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Chapter 4 - Hardware Description  
Functional Modules  
The Functional Modules (cards) perform the various audio, video, and data  
processing functions for the MGC+ unit. Both the MGC+100 and the  
MGC+50 use the same functional modules.  
The MGC+100 unit houses up to sixteen Functional Modules, which can  
occupy slots 1 through 16.  
The MGC+50 unit houses up to eight Functional Modules, which can occupy  
slots 1 through 8.  
The LED’s on the front of each Functional Module indicate the status of  
operation and whether it is functioning properly. Functional Modules are  
installed via the front panel of the MGC+ unit. A connector at the rear of each  
functional module connects the module to the backplane. Any module can be  
inserted into any slot. All Functional Modules are front-removable and hot  
swappable.  
Table 4-5 lists the available Functional Modules.  
Table 4-5: MGC+ Functional Modules Description  
Functional Module  
Function  
Port capacity  
Net-2 ISDN/T1-CAS  
Network Interface  
Interfaces between the  
MGC+ unit and the ISDN  
network or T1-CAS lines.  
46 channels/60 ISDN  
channels or 48 T1-CAS  
channels  
Net-4ISDN//T1-CAS Interfaces between the  
92 channels/120 ISDN  
channels or 96 T1-CAS  
channels  
Network Interface  
MGC+ unit and the ISDN  
network or T1-CAS lines.  
Net-8 ISDN/T1-CAS  
Network Interface  
Interfaces between the  
MGC+ unit and the ISDN  
network or T1-CAS lines.  
184 channels/240  
ISDN channels or 192  
T1-CAS channels  
IP+12/24  
Perform signaling and  
32 channels at  
128Kbps  
capabilities exchange for  
conferencing. Encrypted  
conferences with IP  
participants, SIP sessions  
and mixed component  
conferences that include SIP  
participants require IP+ cards  
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MGC+ Hardware and Installation Manual  
Table 4-5: MGC+ Functional Modules Description  
Functional Module  
Function  
Port capacity  
IP+24/48  
Perform signaling and  
48 channels at  
128Kbps  
capabilities exchange for  
conferencing. Encrypted  
conferences with IP  
participants, SIP sessions  
and mixed component  
conferences that include SIP  
participants require IP+ cards  
IP+48/96  
Perform signaling and  
96 channels at  
128Kbps  
capabilities exchange for  
conferencing. Encrypted  
conferences with IP  
participants, SIP sessions  
and mixed component  
conferences that include SIP  
participants require IP+ cards  
MPI-4  
MPI-8  
Audio+  
Uses dialing protocols to  
communicate to endpoints  
using “Data Terminal  
Equipment” (DTE), or Data  
Communications Equipment  
(DCE).  
120 channels/92  
channels  
Uses dialing protocols to  
communicate to endpoints  
using “Data Terminal  
Equipment” (DTE), or Data  
Communications Equipment  
(DCE).  
240 channels/184  
channels  
Performs audio compression,  
decompression  
•
•
•
Audio+12/24 - 12/  
24* ports  
Audio+24/48 - 24/  
48* ports  
Audio+48/96 - 48/  
96* ports  
* video/audio  
conferences  
4-17  
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Chapter 4 - Hardware Description  
Table 4-5: MGC+ Functional Modules Description  
Functional Module  
Function  
Port capacity  
Video+8  
MUX+10  
Performs video processing  
and Transcoding.  
Up to 8 participants  
Multiplexes and  
demultiplexes audio, data,  
video, and control  
18 channels at  
128Kbps  
information; performs  
channel aggregation,  
enables Encryption.  
MUX+20  
MUX+40  
Multiplexes and  
demultiplexes audio, data,  
video, and control  
information; performs  
channel aggregation,  
enables Encryption.  
128 36 channels at  
128Kbps  
Multiplexes and  
demultiplexes audio, data,  
video, and control  
72 channels at  
128Kbps  
information; performs  
channel aggregation,  
enables Encryption.  
Data Module (T-120) Performs data routing and  
conference control.  
•
•
T.120-12 standard  
card - 12 ports  
T.120-24 card - 24  
ports  
The different types of Functional Modules are used to produce a variety of  
configurations. In the MGC+50 up to eight individual Functional Modules  
can be used to build the desired configuration. In the MGC+100, 16 modules  
can be used.  
Figure 4-10 shows the general design of the Functional Modules. The  
components that are common to all Functional Modules are shown in detail in  
the figure and are described in Table 4-6 on page 4-19.  
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Figure 4-9: General module architecture  
Table 4-6: Common functional module components  
Component  
Description  
The Card Manager processor.  
Provides the interface for the Control bus.  
Card Manager  
HDLC Interface  
Watch Dog  
Represents the Watch Dog, power control, and reset  
switch.  
Represents the RAM for processor general use and  
the flash for the card CPU’s software and module  
specific information such as serial number.  
Memory  
4-19  
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Chapter 4 - Hardware Description  
The Functional Modules are described in detail in the following segments.  
Net-2/Net-4/Net-8 or T1-CAS Network Interface Module  
The Net-2/Net-4/Net-8 Network Interface module provides the interface  
between the MGC+ unit and the ISDN network or T1-CAS lines.  
TDM Interface  
TDM I/F  
PHYI/F  
FRAMER  
Front  
Panel  
LEDs  
COM  
Processor  
Card  
Manager  
DPR  
Watch  
Dog  
HDLC Interface  
Figure 4-10: Net-2/Net-4/Net-8 ISDN/T1-CAS Network Interface Module  
The same type of card can be used to connect ISDN lines or T1-CAS lines.  
However, you cannot connect ISDN lines and T1-CAS lines to the same network  
card.  
The Net-2/Net-4/Net-8 card connects to the I/O-2, I/O-4, and I/O-8 cards  
respectively. The I/O-8 card contains connections of up to eight PRI spans, of  
either an E1 or T1 line and it can work with both types simultaneously. When  
the Net-2/Net-4/Net-8 card is used for T1-CAS lines, only T1 spans are  
connected to the I/O card.  
Different types of ISDN and T1-CAS Network Interface Modules can be  
installed. For more details, see “MGC+ Functional Modules Description” on  
page 4-16.  
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MGC+ Hardware and Installation Manual  
The module’s front panel includes two, four or eight tri-color LEDs  
(depending on the card’s configuration). Depending on the states of the LEDs  
inputs, the LED can be off, green, red or yellow. The red and yellow states  
indicate alarms.  
NET  
2
NET  
4
NET  
8
Line 1  
Line 2  
Line 3  
Line 4  
Line 5  
Line 6  
Line 7  
Line 8  
Line  
1
Line  
Line  
2
3
Line 1  
Line 2  
Line  
4
Figure 4-11: 2/4/8 tri-color LED NET cards front panels  
4-21  
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Chapter 4 - Hardware Description  
The Net-2/Net-4/Net-8 ISDN/T1-CAS Network Interface Data Stream  
Figure 4-12 shows a block diagram of the Net-2/Net-4/Net-8 network  
interface of the MGC+ unit.  
RJ45  
Span A  
ISDN  
RJ45  
Span B  
Telephone  
Network  
Lines  
Backplane  
IO-2  
IO-4  
NET  
A
B
IO-8  
IO-4  
IO-2  
Figure 4-12: Net-2/Net-4/Net-8 ISDN/T1-CAS ISDN Network Interface Block  
Diagram  
The ISDN Network Interface Module is connected to the telephone network  
via the IO card (IO-2, IO-4 or IO-8), which is connected to the PABX and  
CSU. The customer is responsible for supplying the PABX and CSU.  
The ISDN data stream flows from the ISDN telecommunication network  
through the PABX > CSU > MGC+ RJ-45 input connector > IO card (IO-2,  
IO-4 or IO-8) > Backplane connectors > Network Interface Module to the  
Backplane information bus.  
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MGC+ Hardware and Installation Manual  
IP+ Network Interface Module  
The IP+ Network Interface Modules support participant connections using  
H.323 communication standards. The IP+ Network Interface Module also  
supports SIP participants.  
H.323 is a standard for audio, video and data communications across IP based  
(LAN) networks, including the Internet. H.323 allows endpoints to use  
multimedia applications without changing the network infrastructure. H.323  
also allows device independent communications between different endpoints.  
Conference participants therefore do not have to worry about devices and  
compatibility.  
Session Initiation Protocol (SIP) is an application layer protocol designed to  
work over IP networks. SIP can establish, modify, and terminate multimedia  
sessions (conferences).  
The IP+ modules provide bandwidth management, that ensures that corporate  
networks will not be clogged and critical data cannot be disrupted. Network  
managers can limit the number of simultaneous IP connections within their  
network or the amount of bandwidth available to IP applications.  
The IP+ Network Interface modules combine two very different functions in  
one board. This interface module is primarily an IP+ network card, using  
H.323 standards for video conferencing, with an added MUX+ capability that  
uses H.320 standards. The IP+ module design includes an Ethernet network  
interface and a heavy processing core to handle data.  
An MCU with IP only configuration requires the IP+ Network interface  
module and Audio+/Video+/Data cards for conferencing. In that case, the IP+  
module performs the MUX+ functionality.  
A more powerful MCU configuration combines the two network interface  
cards to form a gateway. In this configuration, an IP endpoint can participate  
in the same conference as an H.320 endpoint.  
The IP+ modules contains an embedded software module that interfaces  
between the MCU and the external Gatekeeper.  
The IP+ cards are available in IP+12, IP+24 and IP+48 port sub-assemblies.  
The following table lists the type of IP+ card, its version number, its  
compatibility with SIP, VoIP and Encrypted conferences and its capacity.  
IP+ cards are available with version 4.23 and higher.  
4-23  
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Chapter 4 - Hardware Description  
Table 4-7: IP+ Card Types  
IP+  
Card  
Name  
HW Version  
SIP  
Number  
VOIP  
Call  
Capacity  
Encryption  
Support of Units  
IP+12  
IP+24  
IP+48  
+
+
+
1
2
3
32  
64  
96  
4.41  
4.41  
4.41  
Conferences that include SIP defined participants require IP+ cards from  
version 4.41.  
Module Port Capacity  
The number of participants in a conference is limited by the Line Rates and  
conference type. Table 4-8 describes the port capacities of the cards using  
different line rates.  
Table 4-8: IP Participant Types and Line Rate Capacities  
Number of Participants  
IP+12  
IP+24  
IP+48  
Line  
Rate  
Kbps  
Non-  
encrypted  
Non-  
encrypted  
Non-  
encrypted  
Encrypted  
Encrypted  
Encrypted  
128  
256  
32  
32  
16  
12  
8
16  
12  
8
64  
64  
32  
24  
16  
8
32  
24  
16  
12  
8
96  
96  
48  
36  
24  
12  
48  
36  
24  
18  
12  
6
384  
512  
6
768  
4
T1/E1  
4
2
4
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MGC+ Hardware and Installation Manual  
IP+ Network Interface Module Architecture  
The IP+ Network Interface Modules have the same general card structure as  
other MGC+ modules: Card-Manager, TDM interface, and the functional  
units.  
Figure 4-13 shows the architecture for the IP+ Network Interface Modules.  
TDM Interface  
RTP  
Memory  
System  
controller  
CPU  
FPGA  
UART  
System  
controller  
CPU  
FLASH  
LEDs  
Stack Controller  
Memory  
UART  
FLASH  
LEDs  
10/100  
LAN Controller  
x3  
Front Panel  
LEDs  
Card  
Manager  
Memory  
Watch  
Dog  
HDLC Interface  
I/O  
Figure 4-13: IP and IP+ Network Interface Module architecture  
The IP+ module is accompanied with an IP LAN-I/O card. The LAN Ethernet  
10/100BaseT is connected via the I/O card at the back of the MCU.  
4-25  
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Chapter 4 - Hardware Description  
The MPI-4/8 Network Interface Module  
MPI is an acronym for the Multi Protocol Interface card. The MPI-8 is a serial  
communications interface card that uses certain protocols to communicate to  
endpoints, “Data Terminal Equipment” (DTE), or “Data Communications  
Equipment” (DCE). The protocols that it uses are RS-449, RS-530, V.35, and  
RS-366, which is a dialing protocol.  
The MPI-4/8 Network Interface Module is connected to the DCE (supplied by  
the customer) via the MPI box. The front panel of the MPI-4/8 network  
interface contains two 160-pin connectors.  
MPI-8  
Connection to the  
160-pin connector on  
A
the front panel of the  
MPI box  
Connection to the  
160-pin connector on  
the front panel of the  
B
MPI box  
Figure 4-14: MPI-4/8 Network Interface Module front panel  
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MGC+ Hardware and Installation Manual  
Each 160-pin connector can be connected to one 160-pin connector located  
on the front panel of the MPI box.  
160-pin connector  
Converts data from four ports  
PORTS  
1-4  
A
B
A
B
PORTS  
9-12  
PORTS  
5-8  
PORTS  
13-16  
160-pin connector  
Converts data from four ports  
Figure 4-15: MPI box front panel  
Each of the 160-pin connectors on the MPI box interfaces to four serial ports  
found on the back of the MPI box. Therefore, each MPI-4/8 Network  
Interface module can be connected to up to eight ports. Each port has two  
connectors: 37-pin connector and the 25-pin connector. The 25-pin connector  
is used to dial to an endpoint over an ISDN switch. (In leased line connection  
this port is not used.) The 37-pin connector connects to the serial cable  
coming from the DCE.  
RS-449 37 pin  
D-type  
connector  
RS-336 25 pin  
D-type  
connector  
Single port  
connection  
P12  
P13  
P14  
P1  
P7  
P8  
P9  
P2  
P3  
P1  
P2  
P3  
P6  
P11  
P12  
P13  
P14  
P7  
P8  
P4  
P4  
P5  
P9  
P15  
P16  
P10  
P5  
P6  
P15  
P10  
P11  
P16  
Figure 4-16: MPI box rear panel  
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Chapter 4 - Hardware Description  
MPI-4/8 Network Interface Data Stream  
When the MCU is set as a DTE  
The ISDN data stream flows from the ISDN telecommunication network  
through the DCE to the serial port (37-pin connector) on the MPI box. The  
data is then directed from the 37-PIN connector to the 160-PIN connector,  
which gathers data from four different ports, and channels the data stream to  
the 160-pin connector located on the MPI-4/8 front panel. The data is then  
converted from serial format to TDM format and flown to the Backplane  
information bus.  
The master and the Backup clock must be set on spans of the same network  
type.  
Since this is full duplex communication, the data is also flowing in the  
opposite direction. Figure 4-17 shows the data flow on an ISDN data stream.  
MPI Box  
DCE  
Serial  
connection  
37-PIN  
connector  
160-PIN  
connector  
To the 160-PIN connector  
on the MPI-8 module  
37-PIN connector  
T1 ISDN line  
(23 channels)  
37-PIN  
connector  
37-PIN  
connector  
Serial  
connection  
Figure 4-17: MPI Data Flow when MCU is DTE  
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MGC+ Hardware and Installation Manual  
When the MCU is set as a DCE  
The serial data stream flows from the endpoint (DTE) through the serial  
connector entering the MPI box by way of the 37-pin connector. The data is  
then directed from the 37-pin connector to the 160-pin connector connected to  
the MCU (DCE). In the MCU the data stream is converted to a TDM format,  
and then sent to the backplane information bus. Since this is a full duplex  
communication, the data is also bi-directional.  
The network clock is enabled only when the span coming from the DCE to the  
MCU is active (i.e. handles a call). Therefore, the spans defined as Primary and  
Backup clock must be connected first when starting a conference and  
disconnected last when terminating the conference.  
Figure 4-18, “MPI Data Flow when MCU is DCE” shows the data flow on a  
serial connection - the endpoints are connected directly to the MPI Box.  
MCU (DCE)  
MPI Box  
37- Pin  
Connector  
Endpoint (DTE)  
Serial  
Connection  
37- Pin  
Connector  
Serial  
Connection  
160-Pin Cable  
Endpoint (DTE)  
37-Pin  
Connector  
Serial  
Connection  
37- Pin  
Endpoint (DTE)  
Connector  
Serial  
Connection  
Endpoint (DTE)  
Figure 4-18: MPI Data Flow when MCU is DCE  
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Chapter 4 - Hardware Description  
MPI Network Interface Module Architecture  
Figure 4-19, “MPI-4/8 Network Interface module architecture” shows the  
architecture for the MPI-4/8 Network Interface Module.  
TDM Interface  
Bit Rate I/F #1  
Bit Rate I/F #2  
PHYI/F  
PHYI/F  
TDM I/F  
Front  
Panel  
LEDs  
Watch  
Dog  
Card  
Manager  
HDLC Interface  
Figure 4-19: MPI-4/8 Network Interface module architecture  
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MGC+ Hardware and Installation Manual  
MUX+ Module  
The MUX+ card performs multiplexing and de multiplexing of audio, video,  
data and control information. The MUX+ card has the same general card  
architecture as other modules. The MUX+ card capabilities include:  
•
Flexible port allocation  
•
Supports conference encryption  
Encryption requires the MUX+ card.  
TDM Interface  
RTP  
FPGA  
System  
controller  
MUX+  
Processor  
10/100  
Memory  
LAN Controller  
UART  
FLASH  
LEDs  
x4  
Front Panel  
LEDs  
Card  
Manager  
Memory  
Watch  
Dog  
HDLC Interface  
I/O  
Figure 4-20: MUX+ 40 Module Card Architecture  
Three types of MUX+ cards are available:  
•
•
•
MUX+10 with one processor  
MUX+20 with two processors  
MUX+40 with four processors  
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Chapter 4 - Hardware Description  
The MUX+ handles a variety of Line Rates, aggregation calls (1B to 6B) and  
Bonding calls (128 Kbps to E1).  
MUX+ Card Properties  
A flexible port resource allocation mechanism is available with the MUX+  
card and allocates ports dynamically thereby decreasing fragmentation. It  
enables the MCU to allocate and free resources according to the conference  
requirements without pre-configuring the Line Rate on each card unit.  
Figure 4-21: MUX+ Card Participant Properties  
When version 7.0 software is installed on the MCU, during system re-start the  
MUX+ is recognized as a new type of card and no configuration is required.  
The Card Settings dialog box definitions - Common Parameters and MUX  
Plus Parameters properties are identical to the MUX+ card properties.  
For more information see the MGC Administrator’s Guide, Chapter 4,  
Viewing the MUX+ Module Specific Properties.  
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MGC+ Hardware and Installation Manual  
IVR/Greet & Guide Welcome Slide  
Up to four video slides can be stored on the MUX+ card. The Welcome slide  
is downloaded to all MUX+ cards if more than one card is present on the  
MGC+ MCU.  
MUX+ Port Capacity  
MUX+ resources are allocated at the reservation stage. MUX+ resources are  
calculated according to the relative weight assigned to the different line rates.  
Using the dynamic allocation mechanism, the MUX+ eliminates  
fragmentation and enables better utilization of resources. For example, a  
participant connecting at a line rate of E1 requires 10 times more resources  
than a participant connecting at a line rate of 128 Kbps.  
Encrypted participants always require MUX+ resources and use more  
resources than a regular participant as shown in Table 4-9, "MUX+ Cards  
Port Capacity."  
In a system with MUX+ cards, both encrypted and non-encrypted participants  
resources are allocated and calculated according to the relative weight  
assigned to the different line rates during a reservation. For example, a  
MUX+40 card can host 72 non-encrypted or 48 encrypted participants in a  
conference using a line rate of 128 Kbps.  
The following table details the number of ports available with the MUX+  
cards.  
Table 4-9: MUX+ Cards Port Capacity  
Number of non-  
encrypted ports  
capacity  
Number of  
encrypted ports  
capacity  
Participant Line  
Rate  
Card type  
MUX+10  
128  
256  
384  
512  
768  
T1  
18  
16  
10  
10  
6
9
9
5
5
3
1
2
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Chapter 4 - Hardware Description  
Table 4-9: MUX+ Cards Port Capacity (Continued)  
Number of non-  
encrypted ports  
capacity  
Number of  
encrypted ports  
capacity  
Participant Line  
Rate  
Card type  
MUX+20  
E1  
2
1
128  
256  
384  
512  
768  
T1  
36  
32  
20  
20  
12  
4
18  
18  
10  
10  
6
2
E1  
4
2
MUX+40  
128  
256  
384  
512  
768  
T1  
72  
64  
40  
40  
24  
8
36  
36  
20  
20  
12  
4
E1  
8
4
MUX+ Participant Move Options  
The administrator has the option to define move behavior of encrypted  
participants by setting the system.cfg flag:  
ALLOW_ENCRYPT_IN _PARTY_LEVEL =YES/NO.  
When set to YES, participants can move:  
•
From an encrypted conference to a non-encrypted conference or another  
encrypted conference.  
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MGC+ Hardware and Installation Manual  
•
From a non-encrypted conference to an encrypted conference or another  
non-encrypted conference.  
When the ALLOW_ENCYPT_IN_PARTY_LEVEL flag is set to NO, the  
participant’s encryption setting must match the conference encryption  
setting’s to be moved to the other conference. For example, encrypted  
participants can only move from an encrypted conference to another  
encrypted enabled conference.  
MUX+ Resource Report  
MGC-50/100 Resource Report  
The Resources Report, displays the total number of MUX+ port resources  
available according to the card type, line rate and encryption.  
In the example shown here, the system lists the total number of ports  
available with the MUX+20 card for both non-encrypted and encrypted  
participants, based on their connection line rates. At a line rate of 128 Kbps,  
up to 36 non-encrypted and 18 encrypted participants can connect to  
conferences. At a line rate of 384 Kbps, 20 non-encrypted and 10 encrypted  
participants can connect to conferences running on the MCU.  
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Chapter 4 - Hardware Description  
IP/SIP  
In the IP/SIP section of the Resources Report both non-encrypted and  
encrypted participants are grouped together.  
For example, if one encrypted and one non-encrypted participants using a line  
rate of 128 Kbps attend a conference, the resource report displays the sum of  
the used resources of both participants together. In this case the non-  
encrypted participant is allocated 1 port and the encrypted participant 2 ports,  
totalling 3 ports.  
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MGC+ Hardware and Installation Manual  
Audio+ Module  
The Audio+ Module performs audio compression, decompression, and  
bridging. The Audio+ Module also performs transcoding between various  
audio algorithms.  
The Audio+ Module supports the following algorithms:  
•
•
•
•
•
•
•
•
ITU-T G.711 48, 56, and 64 Kbps  
ITU-T G.722 48, 56, and 64 Kbps  
ITU-T G.728 16 Kbps  
ITU-T G.722.1  
ITU-T G.723.1  
ITU-T G.729  
Siren7  
Siren14  
The Audio+ module enables the usage of the Interactive Voice Response  
(IVR) software component. Interactive Voice Response (IVR) for video  
enables video and VOIP conference participants to use the IVR services for  
interactive routing to conferences and to perform interactive operations from  
their endpoint using DTMF codes. It stores the voice messages used with IVR  
Services.  
The Audio+ card also enables increased port capacity in Audio Only  
conferences. Conferences can include participant handled by one card type -  
either standard audio or the Audio+ family.  
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Chapter 4 - Hardware Description  
Audio+ Module Architecture  
Audio+ represents a new family of audio cards. Audio+ has the same general  
card architecture as other modules. This has an impact on the number of ports  
supported by each card.  
TDM Interface  
Audio  
Audio  
Module  
32 Mbit/s  
Link  
QIFI  
FPGA  
Message  
module  
32 Mbit/s  
Links  
Audio  
Codec  
DSP  
Audio  
Controller  
Unit  
DSP  
x 7  
PCI  
BUS  
Memory  
Memory  
Memory  
Front  
Panel  
LEDs  
Card  
Manager  
LAN  
I/F  
PMC  
I/F  
Data  
Module  
PCI  
BUS  
HDLC  
I/F  
Figure 4-22: Audio+ Module  
Audio+ Port Capacities  
The system’s working mode affects its system capacity: Medium Band  
(without Siren14) and Wide Band (with Siren14). The Medium and Wide  
Band settings are defined in the system.cfg file.  
For Medium Band, the flag is set to  
AUDIO_PLUS_FREQUENCYBAND_MODE=MB.  
For Wide Band, the flag is set to  
AUDIO_PLUS_FREQUENCYBAND_MODE=WB.  
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MGC+ Hardware and Installation Manual  
The following table details the card capacities according to the Audio  
algorithm used in the conference when the MCU is configured to Medium  
Band.  
Table 4-10: Audio+ card capacity per Audio algorithm - Medium Band setting  
Audio Algorithm  
G.711  
G.722  
G.722.1  
G.728  
G.723.1  
G.729  
Siren7  
Siren14  
Card Type  
Audio+12/24  
Audio+24/48  
Audio+48/96  
24  
48  
96  
12  
24  
48  
12  
24  
48  
12  
24  
48  
12  
48  
96  
12  
48  
96  
12  
24  
48  
The following table details the card capacities according to the Audio  
algorithm used in the conference when the MCU is configured to Wide Band.  
Table 4-11: Audio+ card capacity per Audio algorithm - Wide Band setting  
Audio Algorithm  
Card Type  
G.711  
G.722  
12  
G.722.1  
12  
G.728  
12  
G.723.1  
12  
G.729  
12  
Siren7  
12  
Siren14  
12  
Audio+12/24 24  
Audio+24/48 48  
Audio+48/96 96  
24  
24  
24  
48  
48  
24  
24  
48  
48  
48  
96  
96  
48  
48  
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Chapter 4 - Hardware Description  
Video+ Module  
The Video+ module supports up to 8 participants per module. In addition  
it provides the following features/enhancements:  
•
Click&View - A graphical console transmitted to endpoints enabling  
the users to change their personalized video layout or conference.  
•
Personal Layout - Definition and on-the-fly modification of  
individualized participant Continuous Presence layouts. For details,  
see Personal Layout  
•
•
Visual Effects - Definition of background colors, frame colors and  
frame widths for Continuous Presence layouts. For details, see Visual  
Effects  
Quad Mode Continuous Presence - Additional Continuous Presence  
layouts suitable for large conferences, i.e. 4x4.  
•
•
•
H.263 video protocol at 30 Frames Per Second  
Improved video Quality  
Improved Continuous Presence image quality at high bit rates  
(1.52 Mbps)  
•
•
No fragmentation - Conferences can be run across Video+ cards  
Large Continuous Presence conferences - Conference size determined  
only by overall system limitations  
•
Improved latency  
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Video+ Module Architecture  
Figure 4-23 shows the Video+ module architecture.  
Figure 4-23: Video+ module architecture  
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Chapter 4 - Hardware Description  
Data Module  
The Data Module performs conference data and control routing for up to 12  
participants. The system allows for 12 conferences of one participant each, or  
one conference of 12 participants or any combination in between. In T.120  
conferences, the data module does the Transcoding. The module supports  
various ITU-T T.120 standards for data transfer and application sharing in a  
multipoint conference.  
The Data Module supports the following standards:  
•
•
•
ITU-T T.122/T.125—MCS (Multipoint Communications Service)  
ITU-T T.123—Transport Protocol Stacks  
ITU-T T.124—GCC (Generic Conference Control)  
Data Module Architecture  
Figure 4-24 shows the Data Module’s architecture.  
TDM Interface  
Data  
Data Hardware  
FPGA  
LEDs  
PAL  
Data  
Processor  
SRAM  
FLASH  
DPR  
x 4  
Front  
Panel  
LEDs  
Card  
Manager  
Watch  
Dog  
Memory  
HDLC Interface  
Figure 4-24: Data Module  
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MGC+ Hardware and Installation Manual  
Input/Output (I/O) Boards  
On the MGC+ there a number of I/O cards that can be installed on the MGC+:  
•
•
•
•
I/O board of the ReadiManager IAM  
I/O board of the Control Unit (CU)  
Input/Output (I/O) cards connected to Functional Modules  
Music card connected to the Audio+  
Rear I/O Boards  
The Control board can house two I/O board and are connected behind the  
Backplane of the Control Unit and ReadiManager IAM. These I/O cards  
enable connections to the MGC+ Control Unit and ReadiManager IAM.  
MGC+ CUI/O  
ReadiManager I/O  
DEBUG  
LAN  
VGA  
MOUSE  
COM2  
COM1  
LINE IN  
KEYBOARD  
COM1  
KEYBOARD  
COM2  
MOUSE  
VGA  
ALARMS  
LAN  
Figure 4-25: MGC+ Control Unit and ReadiManager IAM rear I/O panels  
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Chapter 4 - Hardware Description  
The following I/O connections are available:  
•
LAN - for more information see “Connecting the MGC+100 to the LAN  
Network” on page 2-19 or “Connecting the MGC+50 to the LAN  
Network” on page 2-34.  
•
•
•
•
VGA Monitor - Connection to a VGA standard monitor  
Mouse  
Keyboard  
COM1 - Dongle connection only. For more information see “MGC+100  
Dongle” on page 2-17 or “MGC+50 Dongle” on page 2-32.  
•
COM2 - for more information see “Connecting the MGC+100 to the  
Operator Workstation (PC) Directly via RS-232 (Optional)” on page 2-  
19 or “Connecting the MGC+50 to the Operator Workstation (PC)  
Directly via RS-232 (Optional)” on page 2-34.  
•
Alarms - for more information, see Chapter 4, “Alarms Port” on page 4-  
15.  
Types of I/O cards on functional Modules  
Input/Output (I/O) Cards connect the Functional Modules to external systems  
and networks. The I/O Cards are housed behind the Backplane, opposite the  
Functional Modules.  
The I/O Cards, which are small and simple, are installed via the rear panel of  
the MGC+. A connector at the rear of each I/O card connects the card to the  
Backplane.  
The following I/O cards can be installed on functional cards of the MCU:  
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•
The IO-2 card connects two PRI/Leased connections from the MGC+ rear  
panel to a Net-2 ISDN/T1-CAS Network Interface Module.  
Figure 4-26: ISDN /T1-CAS Network connection for two spans  
•
The IO-4 card connects four PRI/Leased connections from the MGC+  
rear panel to a Net-4 ISDN/T1-CAS Network Interface Module.  
Figure 4-27: ISDN /T1-CAS Network connection for four spans  
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Chapter 4 - Hardware Description  
•
The IO-8 card connects eight PRI/Leased connections from the MGC+ rear  
panel to a Net-8 ISDN/T1-CAS Network Interface Module.  
Figure 4-28: ISDN/T1-CAS Network connection for eight spans  
•
The LAN-IO Card on the rear MGC+ panel connects an IP connection to the  
H.323 Network Interface Module.  
Figure 4-29: One H.323 Network connection  
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Audio+ Music I/O Card  
A special daughter card, which is attached to one of the Audio+ Functional  
Module can be attached to the rear of the Audio+ module, on the MCU’s rear  
panel. It is used to playback music or recorded messages from an external  
device such as a tape recorder or CD player. Only one music card per MCU  
may be installed.  
Attaching the Music I/O Card to the Audio+ Module  
The Music I/O card is used to attach an external audio device such as a tape  
recorder or CD player to playback music or recorded messages to participants  
waiting in the Welcome Queue during Greet and Guide conferences.  
The Music I/O card is inserted in the rear panel of the MGC+ unit, and it is  
attached to the Audio+ module.  
The Music-IO Card enables importing audio music from an external source  
such as a CD player, tape, radio, etc. It includes a Line-in jack and headphone  
output. The music is available to all endpoints.  
DEBUG  
LINE IN  
Figure 4-30: Music-IO card  
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Chapter 4 - Hardware Description  
To install the Music I/O card in the rear panel of the MGC+ unit:  
1. Carefully slide the Music I/O card into the slot in the backplane where  
the Audio+ module is inserted in the front.  
Backplane  
H.323 I/O  
H.323 Network I/F  
Rear  
NET I/O  
ISDN Network I/F  
+
MUX  
+
Audio  
MUSIC I/O  
+
Video  
Data  
CU I/O  
Control  
Module  
Front  
Power Supply  
Module  
2. Tighten the screws on the rear panel of the MGC+ unit to secure the  
Music I/O card.  
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Enabling the Audio+ Music I/O Card in the MCU Software  
Once the Audio Message daughter card and the Music I/O card are installed,  
the system automatically identifies them. However, if you are upgrading the  
MCU by adding the Message daughter card and the Music I/O card, you may  
have to enable them in the MCU software.  
1. Select Edit "system.cfg" from the MCU Utils sub-menu.  
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Chapter 4 - Hardware Description  
The SysConfig dialog box opens.  
2. Double-click on the GREET_AND_GUIDE line in the Section box.  
The Greet and Guide hardware items appear in the Item = Value box.  
These values are set according to the Hardware installed in the system.  
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MUX+ Video Slides  
Video slides are downloaded and stored in the MUX+ memory. Up to four  
slides may be stored in the MUX+ memory – one per Message Service.  
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Chapter 4 - Hardware Description  
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5
System Maintenance  
The MGC+ is designed with ease of maintenance in mind. Most components  
are hot swappable and are accessible directly via the front panel or the rear  
panel.  
Each module includes LED indicators, which reflect the state of the module.  
The LEDs are located on the front panel of the MGC+.  
All external connectors are located on the rear panel. The main power switch  
is also located on the rear panel.  
This chapter contains the following sections:  
•
•
•
A description of the controls and LED indicators  
Maintenance procedures  
Troubleshooting procedures  
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Chapter 5 - System Maintenance  
Controls and Indicators  
MGC+ Unit Front Panel  
The front panel of the MGC+ unit contains a number of controls, components,  
and indicators for using the MGC+ system. Figure 5-1 and Figure 5-2 show  
the front panel of the MGC+100 and MGC+50 and all their elements.  
R
POLYCOM  
MGC+  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
Line  
Line  
Line  
Line  
1
2
3
4
Power  
In Out  
Power  
In Out  
Power  
In Out  
Figure 5-1: MGC+100 front panel  
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MGC+ Hardware and Installation Manual  
R
POLYCOM  
MGC+  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
Line  
1
2
3
4
5
6
7
8
Line  
Line  
1
2
Power  
Out  
Figure 5-2: MGC+50 front panel  
LED Indicators  
The following LEDs appear on the front panel:  
•
•
•
4 LEDs on the ReadiManager IAM  
4 LEDs on the Control Unit (CU)  
3 LEDs on each Functional Module except for the Network Interface  
Module which contains additional LED for each PRI span connected to  
the system  
•
•
•
•
•
2 LEDs for each of the MGC+100 Power Supply modules  
2 LEDs on the MGC+50 Power Supply  
5 LEDs on NET-2 ISDN Network Interface Module  
7 LEDs on NET-4 ISDN Network Interface Module  
11 LEDs on NET-8 ISDN Network Interface Module  
The system uses these LEDs to indicate operating states. The LEDs on the  
Net-2/Net-4/Net-8 are tri-color. Depending on the states of the LEDs inputs,  
the LED can be off, green, red or yellow. The LEDs on the front panel are  
described in Table 5-1.  
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Chapter 5 - System Maintenance  
Table 5-1: Front Panel LEDs  
Module  
Name  
Color  
Description  
ReadiManager  
IAM (left group)  
Power LED  
Yellow  
Red  
On. Not lit when OFF.  
Flash  
Memory  
LED  
Read or write enable. Lit when  
active.  
Shut Down  
button  
NA  
Turn the ReadiManager ON or  
OFF.  
OFF - Closes all ReadiManager  
processes and applications.  
ON - Starts all ReadiManager  
processes and applications.  
Compact  
Flash slot  
NA  
Future use.  
USB port  
HD LED  
NA  
Future use.  
Red  
Flashes when the Hardisk is  
active.  
Remove  
Server LED  
Green  
When lit, you can remove the  
ReadiManager server. This  
button is lit when you press the  
Shut Down button on the  
ReadiManager.  
Power LED  
Power  
Yellow  
Green  
Red  
On. Not lit when OFF.  
Power supply normal.  
Control Unit  
(right group)  
Flash  
Memory  
Read or write enabled, is lit  
when active  
Major  
Red  
A major fault exists on the  
MGC+ unit  
Minor  
Yellow  
A minor fault exists on the  
MGC+ unit  
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MGC+ Hardware and Installation Manual  
Table 5-1: Front Panel LEDs  
Module  
Name  
Color  
Description  
Functional  
Modules  
Stby  
Green  
On during normal operation  
(refer to Table 5-2)  
(Audio+,  
Fail  
Red  
On when a failure has occurred  
(refer to Table 5-2)  
Video+, IP+,  
MUX+ , MPI and  
T-120)  
Active  
Yellow  
On when the module is handling  
a conference (refer to Table 5-2)  
Net-2 (ISDN and  
T1-CAS)  
Network  
Interface  
Module  
Line 1  
Line 2  
Off  
Span x is not in use  
Span x is OK  
Green  
Yellow  
Red  
Span x yellow alarm (RAI)  
Span x red alarm (LOS)  
(additional  
LEDs)  
Net-4 (ISDN and  
T1-CAS)  
Network  
Interface  
Module  
Line 1  
Line 2  
Line 3  
Line 4  
Off  
Span x is not in use  
Span x is OK  
Green  
Yellow  
Red  
Span x yellow alarm (RAI)  
Span x red alarm (LOS)  
(additional  
LEDs)  
Net-8 (ISDN and  
T1-CAS)  
Network  
Interface  
Module  
Line 1  
Line 2  
Line 3  
Line 4  
Line 5  
Line 6  
Line 7  
Line 8  
Off  
Span x is not in use  
Span x is OK  
Green  
Yellow  
Red  
Span x yellow alarm (RAI)  
Span x red alarm (LOS)  
(additional  
LEDs)  
Power Supply  
Module  
In  
Out  
Green  
Power-in from the mains is OK.  
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Chapter 5 - System Maintenance  
The three Functional Module LEDs function as a group. Each state of the  
Functional Module and its associated LED array is described in Table 5-2.  
The (IDLE, ACTIVE, FAILURE, and PARTIAL FAILURE) states are the  
operational modes of the Functional Module. The (RESET, WAITING FOR  
MCMS and LOADING SOFTWARE) indicates the stages during the startup  
procedure of the Functional Module.  
Table 5-2: Function Module LEDs  
Module State  
STBY  
ON  
FAIL  
ACTIVE  
IDLE—Ready, but not used in a  
conference  
OFF  
OFF  
ACTIVE—Used in one or more  
conferences  
ON  
OFF  
ON  
FAILURE—Error state; board is  
out of operation  
OFF  
ON  
ON  
OFF  
PARTIAL FAILURE—Error state;  
part of board is out of operation  
Flashing  
ON/OFF  
RESET—Board is in Reset state  
TEST—Power-on self test  
ON  
ON  
ON  
OFF  
OFF  
Flashing  
OFF  
WAITING FOR MCMS—Waiting  
for MCMS to start loading software  
Flashing  
Flashing  
LOADING SOFTWARE  
ON  
Flashing  
OFF  
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MGC+ Unit Rear Panel  
The rear panel of the MGC+100 and MGC+50 contains a number of controls  
for using the MGC+ unit. Figure 5-3 and Figure 5-4 show the back panel and  
labels all elements of the MGC+100/50.  
DEBUG  
LAN  
VGA  
MOUSE  
LINE IN  
KEYBOARD  
COM1  
COM2  
ALARMS  
Main Switch  
AC Inlet  
Fan  
Figure 5-3: MGC+100 rear panel controls  
The main power switch is used during installation and replacement of the  
main control unit only, since all other MGC+-100 components are hot  
swappable. The switch includes an AC circuit breaker.  
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Chapter 5 - System Maintenance  
IO Card  
DEBUG  
LAN  
VGA  
MOUSE  
LINE IN  
KEYBOARD  
COM1  
COM2  
ALARMS  
Main Switch  
AC Inlet  
Fan  
Figure 5-4: MGC+50 rear panel controls  
The main power switch is used during installation, and replacement of fans,  
main control module and power supply since the functional modules are hot  
swappable. The switch includes an AC circuit breaker.  
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Corrective Maintenance  
Corrective maintenance refers to changing or replacing an element of the  
system that is faulty. The MGC+ has several components in which problems  
may occur:  
•
•
•
•
•
•
•
•
•
•
•
ReadiManager IAM  
Control Unit (CU)  
Function Modules:  
Network Interface Modules (ISDN/T1-CAS, IP and MPI and/or Serial)  
MUX+ Modules  
Audio+ Modules  
Video+ Modules  
Data Modules  
I/O Cards  
Power Supply Module  
Fans  
Warning!  
•
All maintenance tasks are to be performed by qualified, authorized  
personnel.  
•
•
Use only replacement parts supplied by your dealer.  
Follow all procedures. Do not skip any steps.  
Unless specified differently, the procedures described here are the same for  
both the MGC+100 and the MGC+50.  
Before replacing parts:  
•
To ensure a part needs replacing, complete the troubleshooting  
procedures.  
•
•
•
Identify exactly which part needs replacing.  
Make sure you have the correct replacement part on hand.  
Make sure you are using proper ESD equipment, to prevent damage to  
the system.  
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Chapter 5 - System Maintenance  
Replacing a Functional Module  
The following procedure is applicable for both the MGC+100 and the  
MGC+50. All Functional Modules are hot-swappable and can be replaced  
with the system running. Use the following procedure to replace a faulty  
Functional Module:  
1. Unscrew the screws on the front panel of the MGC+ that secure the  
Functional Module.  
2. Use the plastic ejectors to pull the Functional Module out of its slot in the  
Backplane.  
3. Carefully slide the Functional Module out through the front panel.  
4. Slide in the replacement Functional Module.  
5. Push the Functional Module firmly into the Backplane; making sure it is  
properly seated in its slot.  
6. Tighten the screws on the front panel of the MGC+ that secure the  
Functional Module.  
Replacing the I/O Cards of Functional Modules  
The following procedure is applicable for both the MGC+100 and the  
MGC+50. The I/O Cards (such as the NET I/O card) are hot-swappable and  
can be replaced with the system running. Use the following procedure to  
replace a faulty I/O Card:  
1. Label then disconnect the external connections from the I/O card.  
2. Unscrew the screws on the rear panel of the MGC+ that secure the I/O  
Card.  
3. Pull the I/O Card out of its slot in the Backplane.  
4. Carefully slide the I/O Card out through the rear panel.  
5. Slide in the replacement I/O Card.  
6. Push the I/O Card firmly into the Backplane; making sure it is properly  
seated in its slot.  
7. Tighten the screws on the rear panel of the MGC+ that secure the I/O  
Card.  
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MGC+ Hardware and Installation Manual  
8. Referring to the labels, reconnect the external connections to the I/O  
card.  
Replacing the Power Supply Modules on the MGC+100  
The Power Supply Modules are hot swappable and can be replaced with the  
system running. Use the following procedure to replace a faulty Power  
Supply Module:  
1. Unscrew the 4 screws on the front panel of the MGC+100 that secure the  
Power Supply Module.  
2. Pull on the handle on the plastic panel of the Power Supply Module to  
pull the module out of its slot in the Powerplane.  
3. Carefully slide the Power Supply Module out through the front panel.  
4. Slide in the replacement Power Supply Module.  
5. Push the Power Supply Module firmly into the Powerplane making sure  
it is properly seated in its slot.  
6. Tighten the 4 screws on the front panel of the MGC+100 that secure the  
Power Supply Module.  
Replacing the Power Supply Module on the MGC+50  
The Power Supply Module is not hot swappable and cannot be replaced with  
the system running. Use the following procedure to replace a faulty Power  
Supply Module:  
1. If the MCU is working, exit the MGC+ Manager application and turn off  
the MCU. Otherwise, skip this step.  
2. Unplug the MCU from the AC outlet.  
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Chapter 5 - System Maintenance  
3. Using a standard Phillips screwdriver, remove six spring-loaded screws  
from the fans cover on the MCU’s rear panel.  
4. Optional. Remove the two jack connectors from the fan panel to  
completely remove the fans from the MCU.  
5. Disconnect the AC input (J1) and the 12V/5V Sense connectors (J2).  
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6. Disconnect the +5V and -5V power cables using a 9/16” (13 mm) M8 nut  
driver.  
Tighten the two flat washers, the spring washer and the nut back to their +5V  
and -5V screws on the faulty unit to be shipped to the manufacturer. These  
items are delivered with the new power supply module.  
7. Using a Phillips screwdriver, loosen the six spring-loaded screws on the  
front panel of the MGC+50 that secure the Power Supply Module.  
PWR  
OUT  
8. From the rear, carefully slide the Power Supply Module out through the  
front panel and remove.  
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Chapter 5 - System Maintenance  
9. Slide in the replacement Power Supply Module from the front panel and  
push it firmly into its place.  
10. Tighten the six screws on the front panel of the MGC+50 that secure the  
Power Supply Module.  
11. Connect the red power cable to the +5V screw and ensure that the nut is  
well fastened and secured:  
—
—
—
—
—
First install the flat washer.  
Next, install the terminal ring of the power cable.  
Next, install the second flat washer.  
Then, install the spring washer.  
Last, screw the nut.  
12. Connect the black power cable to the -5V screw in the order described in  
step 11 and ensure that the nut is well fastened and secured.  
13. Reconnect the AC input (J1) and the 12V/5V Sense connectors (J2).  
14. Reposition the fans cover panel on the rear panel. Ensure that the two fan  
connectors are in their place and tighten the six screws to secure the fan  
cover to its place.  
15. Connect the AC power cable to the MCU and turn on the MCU.  
The green Power Supply Module LED should be green to indicate that  
the MCU power is on.  
5-14  
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MGC+ Hardware and Installation Manual  
Fan Replacement for the MGC+100  
The fans are hot swappable and can be replaced with the system running. The  
fans are located on the rear panel of the MGC+100. Use the following  
procedure to replace a faulty fan:  
1. Disconnect the cable to the fan.  
2. Unscrew the four screws on the rear panel of the MGC+100 that secure  
the fan.  
3. Remove the fan.  
4. Position the replacement fan correctly on the rear panel.  
5. Tighten the four screws on the rear panel of the MGC+100 that secure  
the fan.  
6. Connect the cable to the fan.  
5-15  
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Chapter 5 - System Maintenance  
Fan Replacement for the MGC+50  
The fans are not hot swappable and cannot be replaced with the system  
running. Fans are located on the rear pane of the MGC+50. Use the following  
procedure to replace a faulty fan:  
1. Exit the MGC+ Manager application, turn off the MCU and unplug it  
from the AC outlet.  
2. Using a standard Phillips screwdriver, remove six spring-loaded screws  
from the fans cover on the MCU’s rear panel.  
Lower the fans cover carefully without tearing the cables to gain access  
to its inner side.  
3. Disconnect the two connectors of the power supply cable from the inside  
of the fan panel. At this point, the fan panel is loose and it may be  
removed.  
4. From the inside of the fan panel, push the connector panel mount locks  
of the faulty fan connector and push the connector to the front of the  
panel.  
5. Unscrew the four screws on the Fans front panel that secure the faulty  
fan to the fan panel.  
5-16  
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MGC+ Hardware and Installation Manual  
6. Remove the fan.  
7. Position the replacement fan correctly on the rear panel.  
8. Tighten the four screws on the Fans front panel that secure the fan.  
9. Insert the connector to its place in the Fans panel and ensure that the  
panel mount locks are locked.  
10. Connect the two connectors of the power supply cable.  
11. Reposition the fans cover panel on the rear panel and tighten the six  
screws to secure the fan cover to its place.  
12. Connect the AC power cable to the MCU and turn on the MCU. Check  
the fan is working correctly.  
Replacing the Main Control Module  
The Main Control Module is not hot swappable. Use the following procedure  
for both the MGC+100 and the MGC+50 to replace the Main Control  
Module:  
1. Exit the MGC Manager application, as described in the MGC Manager  
User’s Guide.  
2. Switch off the main power switch on the rear panel and disconnect the  
power cord from the power source.  
3. Unscrew the four screws on the front panel of the MGC+ that secure the  
Main Control Module.  
4. Use the silver plastic ejectors to pull the Main Control Module out of its  
slot in the Backplane.  
5. Carefully slide the Main Control Module out through the front panel.  
6. Slide in the replacement Main Control Module.  
7. Push the Main Control Module firmly into the Backplane making sure it  
is properly seated in its slot.  
8. Tighten the four screws on the front panel of the MGC+ that secure the  
Main Control Module.  
9. Reconnect all internal cables to the Main Control Module.  
10. Close the cover of the Main Control Module on the rear panel of the  
MGC+.  
5-17  
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Chapter 5 - System Maintenance  
11. Connect the power cord to the power source and switch on the main  
power switch on the rear panel.  
12. Turn on the MCU. Connect to the MCU via the MGC+ Manager, as  
described in the MGC+ User’s Guide.  
Replacing the Main Control Module rear I/O Panel  
Use the following procedure to replace a faulty I/O:  
1. Exit the MGC Manager application, as described in the MGC Manager  
User’s Guide.  
2. Switch off the main power switch on the rear panel and disconnect the  
power cord from the power source.  
3. Unscrew the 4 screws on the rear panel of the MGC+100/50 that secure  
the I/O panel.  
4. Pull on the plastic handles on the rear panel of the I/O panel to pull the  
module out of its slot and Backplane.  
5. Carefully remove the I/O panel.  
6. Slide in the replacement I/O panel.  
7. Push the I/O panel firmly into the Backplane and slot making sure it is  
inserted properly.  
8. Tighten the 4 screws on the front panel of the MGC+100/50 that secure  
the I/O panel.  
9. Connect the power cord to the power source and switch on the main  
power switch on the rear panel.  
10. Turn on the MCU. Connect to the MCU via the MGC+ Manager, as  
described in the MGC+ User’s Guide.  
Replacing Compact Flash Accessories  
The MGC+ is supplied with two Compact Flash accessories:  
•
•
USB to Compact Flash adaptor  
Compact Flash 128MB Disk  
5-18  
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MGC+ Hardware and Installation Manual  
When these parts require replacement, please contact Polycom Resource  
Center.  
You are required to use only parts approved by Polycom, or supplied in the  
Polycom accessories kit.  
Table 5-1: Compact Flash Kit  
Item #  
Polycom P/N  
Description  
1
MSC2042A  
Reader/Writer, Compact Flash Type I  
To USB 2.0  
2
ICM2025A  
IC Memory Compact Flash Card  
128MB Type I  
Replacing the Dongle  
The Dongle is installed on COM1 on the Control Unit (CU) rear panel I/O  
with a bracket. Prior to replacing a dongle, please contact Polycom Resource  
Center.  
1. Remove the bracket by removing the screws and unplug the dongle.  
LAN  
VGA  
MOUSE  
KEYBOARD  
COM1  
COM2  
ALARMS  
5-19  
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Chapter 5 - System Maintenance  
2. Insert the new dongle in COM1 and re-attach the bracket by fixing the  
screws.  
Verifying the Dongle  
•
Check the serial number of the dongle currently installed on the MGC  
Manager; right-click the MCU icon, and then click Dongle Information.  
The Dongle Information dialog box opens, displaying the dongle's serial  
number and the current MCU Version.  
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MGC+ Hardware and Installation Manual  
The serial number displayed in the Dongle Information dialog box  
should match the serial number on the Dongle. If the numbers do not  
match, do not proceed and contact support.  
Shutting Down the MGC+ 50/100  
Use the following procedure for both the MGC+100 and the MGC+50 to turn  
off the MGC+ 100/50:  
1. Exit the MGC Manager application, as described in the MGC Manager  
User’s Guide.  
2. Switch off the main power switch on the rear panel and disconnect the  
power cord from the power source.  
5-21  
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Chapter 5 - System Maintenance  
Troubleshooting  
The MGC+ unit provides on-line diagnostics for quick isolation and  
resolution of problems. The card status and the MCU's status can be viewed  
in the Browser and the Status areas of the MGC+ Manager main window. The  
full messages regarding the cards status can also be viewed in the Status box  
of the Card Settings dialog box. For more information, see the MGC+  
Administrator’s Guide, Chapter 4, “MCU Card Management”.  
Faults and errors (usually software) are recorded in the Faults file and can be  
viewed in the faults dialog box (accessed from the MCU right-click pop-up  
menu). For more details, see the MGC+ Administrator’s Guide, Chapter 5.  
A list of system faults can be viewed via the Faults function. A detailed list of  
faults can be found in the MGC+ Administrator’s Guide, Appendix B.  
5-22  
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Appendix A: Interfaces Pin  
Assignment  
PRI Port Assignment  
Pin 8  
Pin 1  
Table A-1: PRI Port Assignment  
Pin  
Signal Name  
1
2
3
4
5
6
7
8
Receive Ring  
Receive Tip  
No connection  
Transmit Ring  
Transmit Tip  
No connection  
No connection  
No connection  
A-1  
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Appendix A: Interfaces Pin Assignment  
LAN PIN Assignment  
TD+  
TD-  
1
8
RD+  
RD-  
Figure A-1: LAN Pin Assignment  
Alarms Port Pin Assignment  
Minor  
Major  
Critical  
Pin 1  
Critical  
Major  
Minor  
Figure A-2: Alarm Port Pin Assignment  
A-2  
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MGC+ Hardware and Installation Manual  
RS-232 Pin Assignment  
DCD  
RxD  
TxD  
DTR  
GND  
Pin 1  
RI  
CTS  
RTS  
DSR  
Figure A-3: RS-232 Pin Assignment  
Table A-1: PRI Port Assignment  
Pin  
Description  
1
2
3
4
5
6
7
8
Data Carrier Detect (DCD)  
Receive Data (RXD)  
Transmit DATA (TXD)  
Data Terminal Ready (DTR)  
GROUND (GND)  
Data Set Ready (DSR)  
Clear to Send (CTS)  
Ring Indicator (RI)  
A-3  
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Appendix A: Interfaces Pin Assignment  
Serial Port Connectors Pin out Assignment  
SOURCE  
PIN  
NO.  
SOURCE  
SIGNAL  
DESIGNATION  
SIGNAL  
DESIGNATION  
PIN  
NO.  
1
2
Shield  
Common  
DTE  
Transmitted Data (B)  
Transmit Signal Element (A)  
Received Data (B)  
Receiver Signal Element Timing (A)  
Local Loopback  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
Return  
DCE  
Transmitted Data (A)  
Received Data (A)  
3
DCE  
Return  
DCE  
4
Request to Send (A)  
Clear to Send (A)  
DTE  
5
DCE  
DTE  
6
DCE Ready (A)  
DCE  
Return  
DTE  
Request to Send (B)  
DTE Ready (A)  
7
Signal Ground  
Common  
DCE  
8
Received Line Signal Detector (A)  
Receiver Signal Element Timing (B)  
Received Line Signal Detector (B)  
Ext. Transmit Signal Element Timing (B)  
Transmit Signal Element Timing (B)  
Clear to Send (B)  
DTE  
Remote Loopback  
DCE Ready (B)  
9
Return  
Return  
Return  
Return  
Return  
Return  
Return  
DTE  
10  
11  
12  
13  
DTE Ready (B)  
Ext. Transmit Element Timing (A)  
Test Mode  
DCE  
Figure A-4: RS-530 Pin out (DB-25)  
SOURCE  
PIN  
NO.  
SOURCE  
SIGNAL  
DESIGNATION  
PIN  
NO.  
SIGNAL  
DESIGNATION  
1
2
Shield  
Common  
DCE  
-
Receive Common  
KG Resync (B)  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
Common  
-
Signal Rate Indicator  
KG Resync (A)  
Send Data (A)  
3
Send Data (B)  
Return  
Return  
Return  
Return  
Return  
Return  
DTE  
4
DTE  
DCE  
DCE  
DTE  
DCE  
DCE  
DTE  
DCE  
DTE  
DCE  
DTE  
DCE  
DTE  
DTE  
DCE  
Common  
Send Timing (B)  
Receive Data (B)  
Request to Send (B)  
Receive Timing (B)  
Clear to Send (B)  
Terminal in Service  
Data Mode (B)  
5
Send Timing (A)  
Receive Data (A)  
Request to Send (A)  
Receive Timing (A)  
Clear to Send (A)  
Local Loopback  
Data Mode (A)  
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
Return  
Return  
Return  
DTE  
Terminal Ready (B)  
Receiver Ready (B)  
Select Standby  
Terminal Ready (A)  
Receiver Ready (A)  
Remote Loopback  
Incoming Call  
Signal Quality  
DCE  
New Signal  
DTE  
Select Frequency  
Terminal Timing (A)  
Test Mode  
Terminal Timing (B)  
Standby Indicator  
Send Common  
Return  
DCE  
Common  
Signal Ground  
Figure A-5: RS-449 Pin out (DB-37)  
A-4  
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MGC+ Hardware and Installation Manual  
SOURCE  
SIGNAL  
DESIGNATION  
PIN  
NO.  
SOURCE  
PIN  
NO.  
SIGNAL  
DESIGNATION  
Common  
Signal Ground  
Clear to Send  
Data Carrier Detect  
Ring Indicator  
Unassigned  
B
D
F
J
A
C
E
H
K
M
P
S
U
W
Y
Common  
Chassis Ground  
Request to Send  
Data Set Ready  
DCE  
DTE  
DCE  
DCE  
DCE  
Data Terminal Ready  
Unassigned  
DTE  
-
L
-
-
Unassigned  
N
R
T
V
X
Z
Unassigned  
-
DTE  
DTE  
DTE  
DTE  
DCE  
DCE  
-
DCE  
Receive Data (A)  
Receive Data (B)  
Receive Timing (A)  
Receive Timing (B)  
Unassigned  
Transmitted Data (A)  
Transmitted Data (B)  
Terminal Timing (A)  
Terminal Timing (B)  
Transmit Timing (A)  
DCE  
DCE  
DCE  
-
-
-
-
-
-
-
Unassigned  
BB  
AA Transmit Timing (B)  
CC  
Unassigned  
DD  
FF  
JJ  
Unassigned  
Unassigned  
EE Unassigned  
HH Unassigned  
-
Unassigned  
-
Unassigned  
LL  
KK  
-
Unassigned  
Unassigned  
NN  
MM Unassigned  
-
Figure A-6: V.35 Pin out (M-34 Connector)  
SIGNAL  
DESIGNATION  
PIN  
NO.  
SOURCE  
PIN  
NO.  
SIGNAL  
DESIGNATION  
SOURCE  
1
2
Shield  
-
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
(NB1)  
Digit Present  
(DPR)  
(NB2)  
3
Abandon Call and Retry  
Call Request  
Digit Signal Circuits  
(ACR)  
(NB3)  
4
(CRQ)  
(NB4)  
5
Present Next Digit  
Power Indication  
Signal Ground  
Unassigned  
Reserved for automatic calling equipment  
testing. These 2 pins shall not be  
wired in the data terminal equipment.  
(PND)  
Receive Common  
Send Common  
Unassigned  
RC  
6
(PWI)  
SC  
7
(SG)  
-
8
-
Unassigned  
-
9
-
Data Line Occupied  
Unassigned  
DLO  
10  
11  
12  
13  
-
-
-
-
Unassigned  
-
Unassigned  
Unassigned  
-
Unassigned  
Distant Station Connected  
(DSC)  
Figure A-7: RS-366 Pin out (DB-25)  
A-5  
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Appendix A: Interfaces Pin Assignment  
Cables For the MPI-4/8 Network Interface Module  
There are three new cables for interfacing with the MPI-4/8 Network  
Interface Module in DCE. The difference in the cables is that they have  
certain pins that are crossed.  
1. Part Number: CON2044A – Adapter RS-449 (BD37) to V.35 (female)  
crossed DCE.  
2. Part Number: CON 2045A- Adapter RS-449/EIA530 Crossed DCE  
(DB37M/DB37F).  
3. Part Number: CON2046A- Adapter RS-449/RS-449 Crossed DCE  
(DB37M/DB37F).  
A-6  
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