Kramer Electronics, Ltd.
USER MANUAL
Model:
VP-108
1:8 XGA / Balanced Stereo Audio DA
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Introduction
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range
of problems that confront the video, audio, presentation, and broadcasting
professional on a daily basis. In recent years, we have redesigned and upgraded
most of our line, making the best even better! Our 1,000-plus different models
now appear in 11 groups1 that are clearly defined by function.
Congratulations on purchasing your Kramer VP-108 1:8 XGA / Balanced
Stereo Audio DA (distribution amplifier), which is ideal for using with
presentation systems, and video duplication and production studios.
The package includes the following items:
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VP-108 1:8 XGA / Balanced Stereo Audio DA
Power cord
Windows®-based Kramer control software
Null-modem adapter
This user manual2
2 Getting Started
We recommend that you:
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Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
ñ
ñ
Review the contents of this user manual
Use Kramer high performance high resolution cables3
2.1 Quick Start
This quick start chart summarizes the basic steps when connecting a VP-108:
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems; GROUP 4:
Format/Standards Converters; GROUP 5: Twisted-Pair Solutions; GROUP 6: Specialty AV Products; GROUP 7: Scan
Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity; GROUP 10: Accessories and
Rack Adapters; GROUP 11: Sierra Products
1
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Getting Started
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Overview
3 Overview
The high-performance VP-108 1:8 XGA / Balanced Stereo Audio DA is an
8-channel distribution amplifier for VGA/XGA and stereo audio (balanced or
unbalanced) that uses 15-pin HD connectors for the VGA-type signals, and
detachable terminal block connectors for the audio.
In particular, the VP-108:
ñ
Is unique in that each of the eight XGA outputs, and each of the eight
stereo audio outputs, may be individually enabled or disabled1, replacing a
switcher which would typically be used in such setups
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Is controllable (switching of the outputs) via RS-232 or RS-485 serial
commands transmitted by a touch screen system, PC, or other serial
controller, as well as via external dry contact switches
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Stores the output configuration in non-volatile memory so that the
machine will restore its power-down status when power is returned
Uses solid-state electronic switching, and low-noise amplifying circuitry
throughout the unit, and the sync pulses are detected and reconstructed
before amplifying and buffering to the outputs
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Has a high video bandwidth, ensuring that each unit remains transparent
even at the highest resolution VGA modes such as XGA
Achieving the best performance means:
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Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and
elevated noise levels (often associated with low quality cables)
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Avoiding interference from neighboring electrical appliances and
positioning your VP-108 unit in a location free from moisture, excessive
sunlight and dust
4 Your VP-108 1:8 XGA / Balanced Stereo Audio DA
Figure 1 and Table 1 define the VP-108 1:8 XGA / Balanced Stereo Audio
DA:
1 Using the REMOTE connector (see section 6.3) or via RS-232 or RS-485
3
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Your VP-108 1:8 XGA / Balanced Stereo Audio DA
GBA
Figure 1: VP-108 1:8 XGA / Balanced Stereo Audio DA
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Your VP-108 1:8 XGA / Balanced Stereo Audio DA
Table 1: VP-108 1:8 XGA / Balanced Stereo Audio DA Features
#
1
2
Feature
POWER Switch
AUDIO INPUT Terminal Block
Connector
Function
Illuminated switch for turning the unit ON or OFF
Connect to the balanced stereo audio source
3
4
5
XGA INPUT 15-pin HD Connector
LEFT LEVEL Trimmer
RIGHT LEVEL Trimmer
Connect to the XGA source
Adjust1 the left output signal level
Adjust1 the right output signal level
6
7
8
9
10
11
12
13
LOOP 15-pin HD Connector
OUTPUT Terminal Block Connectors
OUTPUT 15-pin HD Connectors
REMOTE Terminal Block Connectors
RS-485 Connector
RS-232 9-pin D-sub Connector
SETUP Dipswitches
Power Connector with Fuse
For looping to increase output availability
Connect to the balanced stereo audio acceptors (from 1 to 8)
Connect to the XGA acceptors (from 1 to 8)
Connect to the contact closure switches
RS-485 detachable terminal block port
Connect to PC or other Serial Controller
Dipswitches for setup of the unit
AC connector enabling power supply to the unit
Figure 2 and Table 2 define the underside controls:
Figure 2: VP-108 Underside
Table 2: VP-108 Underside Features
Feature
Function
ID BIT Switch
Set to ON position2 to select the ID BIT3
TERMINATION4 Switch
EQ.4 Trimmers
Set to ON position2 to terminate with 75W, or move to Hi-Z for looping
Adjust1 the cable compensation equalization levels for blue, green and red
Adjust1 the output signal levels for blue, green and red
LEVEL4 Trimmers
1 Insert a screwdriver into the small hole and carefully rotate it
2 The factory default
3 Sometimes notebook computers refuse to output a VGA signal to an external VGA monitor if they do not detect the ID BIT
as ON. Set the ID BIT to ON using this switch so that the notebook will output to an external VGA monitor
4 Separately for Blue (B), Green (G) and Red (R)
5
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Installing the VP-108 in a Rack
5 Installing the VP-108 in a Rack
This section describes what to do before installing in a rack and how to rack
mount.
Before Installing in a Rack
How to Rack Mount
Before installing in a rack, be sure that the environment is
within the recommended range:
Operating temperature range +5º to +45º C (41º to 113º F)
To rack-mount a machine:
1. Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the
machine (3 on each side), and
replace those screws through the
ear brackets.
Operating humidity range
10 to 90% RHL, non-condensing
Storage temperature range
Storage humidity range
-20º to +70º C (-4º to 158º F)
5 to 95% RHL, non-condensing
!
CAUTION!!
When installing in a 19" rack, avoid hazards by taking
care that:
1. It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
2. Once rack mounted, enough air will still flow around
the machine.
2. Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided)
through each of the four holes in the
rack ears.
3. The machine is placed straight in the correct
horizontal position.
Note that:
4. You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the
product label.
5. The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention to situations where
electricity is supplied indirectly (when the power cord
is not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip, and that you use only the power cord that is
supplied with the machine.
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In some models, the front panel
may feature built-in rack ears
Detachable rack ears can be
removed for desktop use
Always mount the machine in the
rack before you attach any cables
or connect the machine to the
power
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If you are using a Kramer rack
adapter kit (for a machine that is not
19"), see the Rack Adapters user
manual for installation instructions
(you can download it at:
http://www.kramerelectronics.com)
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
6 Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
To connect the VP-108 1:8 XGA / Balanced Stereo Audio DA, as the example
in Figure 3 illustrates, do the following1:
1. Connect the XGA graphics source (for example, a PC) to the XGA
INPUT 15-pin HD connector, and connect2 the balanced stereo audio
source to the AUDIO INPUT terminal block connector.
2. Connect up to 8 XGA OUTPUT 15-pin HD connectors to the XGA
acceptors (for example, XGA monitors), and connect2 the corresponding
AUDIO OUTPUT terminal block connectors to the stereo audio acceptors
(for example, pairs of stereo loudspeakers).
3. Connect the LOOP 15-pin HD connector (OPTIONAL) to the XGA
INPUT 15-pin HD connector on an additional unit to increase video
outputs.
4. Set the dipswitches (see section 6.2.1).
5. Set the switches on the underside for looping3 (see Figure 2).
6. Connect the power cord4.
7. Adjust the left and right audio signal levels, if required.
8. If required5, connect a PC and/or controller to the RS-232 port (see
section 6.2), and/or the RS-485 port.
9. If required, connect a remote contact closure switch (see section 6.3).
1 Switch OFF the power on each device before connecting it to your VP-108. After connecting your VP-108, switch on its
power and then switch on the power on each device. Switching on the VP-108, recalls the last status prior to powering down
2 See section 6.1 for a description of how to connect a balanced/unbalanced stereo audio input/output
3 The default settings are for non-looping
4 The power connector is not illustrated in Figure 3
5 Not illustrated in Figure 3
7
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
Figure 3: Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
6.1 Connecting the Balanced/Unbalanced Stereo Audio Input/Output
Figure 4 illustrates how to wire a balanced input/output connection:
Figure 4: Connecting the Balanced Stereo Audio Input/Output
Figure 5 illustrates how to wire an unbalanced acceptor to the balanced output
of the unit:
Figure 5: Connecting the Unbalanced Stereo Audio Output
Figure 6 illustrates how to connect an unbalanced source to the balanced
input on the VP-108:
Figure 6: Connecting an Unbalanced Source to the Balanced VP-108 Input
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
6.2 Controlling via RS-232 (for example, using a PC)
To connect a PC to the VP-108 unit(s), using the Null-modem adapter
provided with the machine (recommended):
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Connect the RS-232 9-pin D-sub rear panel port on the VP-108 unit to the
Null-modem adapter and connect the Null-modem adapter with a 9-wire
flat cable to the RS-232 9-pin D-sub port on your PC
To connect a PC to the VP-108 unit, without using a Null-modem adapter:
ñ
Connect the RS-232 9-pin D-sub port on your PC to the RS-232 9-pin
D-sub rear panel port on the VP-108 unit, as Figure 7 illustrates
PIN 5 Connected to PIN 5 (Ground)
PIN 3 Connected to PIN 2
PIN 2 Connected to PIN 3
9-pin D-sub
(Male)
9-pin D-sub
(From PC)
PIN 4 is connected to PIN 6
PINs 8, 7, 1 are connected together
If a shielded cable is used, connect the shield to PIN 5
Figure 7: Connecting a VP-108 Unit to a PC without using a Null-modem Adapter
6.2.1
Setting the Dipswitches
Figure 8 illustrates the factory default SETUP dipswitches:
Figure 8: SETUP Dipswitches
Table 3: Dipswitch Settings
Function
Machine #
PC 485
DIPS
Description
1, 2, 3 Determines the position of a unit in the sequence (refer to section 0)
4
Set ON when connecting the PC (or other controller) via the RS-485 port, set
OFF when connecting the PC via the RS-232 port or when not connecting a PC
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
6.2.2
Setting the MACHINE #
The MACHINE # determines the position of a VP-108 unit, specifying which
VP-108 unit is being controlled when several VP-108 units connect to a PC
or serial controller. Set the MACHINE # on a VP-108 unit via DIPS 1, 2 and
3, according to Table 4.
When using a stand-alone VP-108 unit, set the MACHINE # to 1. When
connecting more than one VP-108 unit, set the first machine (the Master) that
is closest to the PC, as MACHINE # 11.
Table 4: Machine # Dipswitch Settings
MACHINE # DIPSWITCH
1
2
3
1 Master
OFF OFF OFF
ON OFF OFF
OFF ON OFF
ON ON OFF
OFF OFF ON
ON OFF ON
OFF ON ON
ON ON ON
2
3
4
5
6
7
8
6.3 Connecting the REMOTE Connector
Connecting the REMOTE terminal block connector pins to a contact closure
switch lets you to disable (and then enable again) output(s) by remote
control2. To do so, touch (momentarily) the appropriate REMOTE terminal
block connector pin to the Ground PIN, as Figure 9 illustrates.
For example to disable outputs 1, 2 and 8, touch (momentarily) PIN 1 to the
Ground PIN, and then touch (momentarily) PIN 2 to the Ground PIN, and then
touch (momentarily) PIN 8 to the Ground PIN.
Do not touch (momentarily) more than one PIN to the Ground PIN
simultaneously.
1 Set the dipswitches to OFF
2 An output may also be disabled via RS-232 or RS-485
9
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Connecting the VP-108 1:8 XGA / Balanced Stereo Audio DA
Figure 9: REMOTE Terminal Block Connector
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Technical Specifications
7 Technical Specifications
Table 5 includes the technical specifications:
Table 5: Technical Specifications1 of the VP-108 1:8 XGA / Balanced Stereo Audio DA
INPUT:
1 XGA on an 15-pin HD connector; 1 balanced audio +4dBm 100kW on
detachable terminal block connectors
1 LOOP on an 15-pin HD connector
OUTPUTS:
8 XGA on 15-pin HD connectors; 8 balanced audio +4dBm 100kW on
detachable terminal block connectors
MAX. OUTPUT LEVEL:
BANDWIDTH (-3dB):
DIFF. GAIN:
VIDEO: 1.5Vpp
VIDEO: 400MHz
0.03%
AUDIO: 25Vpp
AUDIO: >100kHz
DIFF. PHASE:
K-FACTOR:
0.03 Deg.
<0.05%
S/N RATIO:
VIDEO: 74.3dB
AUDIO: 93dB unweighted
CONTROLS:
VIDEO: Level : -1.1dB to +6.2dB;
Equalization: 0dB to +8dB, 50MHz
AUDIO: Level : -0.9dB to +8.6dB
COUPLING:
AUDIO THD + NOISE:
VIDEO: DC
0.005%
AUDIO: DC
AUDIO 2nd HARMONIC: 0.003%
POWER SOURCE:
DIMENSIONS:
WEIGHT:
90-260 V AC, 50/60Hz, 25VA
19-inch (W), 7-inch (D), 1U (H) rack mountable
2.6kg (5.7lbs) approx.
ACCESSORIES:
Power cord, Null modem adapter, Windows®-based Kramer control software
1 Specifications are subject to change without notice
11
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Table of Hex Codes for Serial Communication
8 Table of Hex Codes for Serial Communication
Table 6 lists the Hex values for a single machine (MACHINE # 1). 4 bytes of
information are sent for each instruction. For more detailed information, see
Protocol 20001.
Table 6: VP-108 Hex Codes
VIDEO2:
OUT 1
01
81
81
81
OUT 2
01
81
82
81
OUT 3
01
81
83
81
OUT 4
01
81
84
81
OUT 5
01
81
85
81
OUT 6
01
81
86
81
OUT 7
01
81
87
81
OUT 8 ALL OUTPUTS
01
81
88
81
01
80
88
81
01
81
80
81
01
80
80
81
ON
01
80
81
81
01
80
82
81
01
80
83
81
01
80
84
81
01
80
86
81
01
80
87
81
OFF
01
80
85
81
AUDIO3:
OUT 1
OUT 2
OUT 3
OUT 5
OUT 6
OUT 7
OUT 8 ALL OUTPUTS
OUT 4
02
81
81
81
02
80
81
81
02
81
82
81
02
80
82
81
02
81
83
81
02
80
83
81
02
81
84
81
02
80
84
81
02
81
85
81
02
80
85
81
02
81
86
81
02
80
86
81
02
81
87
81
02
80
87
81
02
81
88
81
02
80
88
81
02
81
80
81
02
80
80
81
ON
OFF
2 For audio-follow-video mode
3 For audio breakaway mode
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LIMITED WARRANTY
Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the
followingterms.
HOW LONGIS THE WARRANTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
WHO IS PROTECTED?
Only the first purchase customer may enforce this warranty.
WHATISCOVEREDANDWHATISNOTCOVERED
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
by the warranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
2. Any product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID
IF TAMPERED sticker has been torn, reattached, removed or otherwise interfered with.
3. Damage, deterioration ormalfunctionresultingfrom:
i) Accident, misuse, abuse, neglect, fire, water, lightning orotheractsofnature
ii) Product modification,orfailure to followinstructions supplied with the product
iii) Repairorattemptedrepairby anyonenot authorized byKramer
iv) Anyshipment oftheproduct(claims must bepresentedtothe carrier)
v) Removalorinstallationofthe product
vi) Anyothercause, whichdoes not relate to a product defect
vii) Cartons,equipment enclosures, cables or accessoriesusedinconjunctionwiththeproduct
WHATWE WILLPAYFORAND WHATWE WILLNOTPAYFOR
We will pay laborand material expensesforcovered items.We will notpayforthefollowing:
1. Removal orinstallationscharges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibility ofthe Kramerdealerfromwhomtheproduct was purchased.
3. Shipping charges.
HOW YOU CAN GET WARRANTY SERVICE
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,
company, address, and a description of the problem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
LIMITATION OFIMPLIED WARRANTIES
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
EXCLUSIONOFDAMAGES
The liability of Kramer for any effective productsis limited to the repair or replacement of the product at our option. Kramer shall
not be liable for:
1. Damage to otherproperty caused by defectsinthis product,damages basedupon inconvenience, lossofuse of the product, loss
oftime,commercialloss; or:
2. Any other damages, whether incidental, consequential or otherwise. Some countriesmay not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitationsandexclusionsmaynotapplytoyou.
Thiswarranty gives youspecificlegalrights, andyou may alsohaveotherrights, which varyfromplacetoplace.
NOTE:Allproductsreturned to Kramerforservice must have priorapproval.Thismay be obtained fromyourdealer.
Thisequipment has been testedtodeterminecompliance with the requirements of:
EN-50081:
"Electromagneticcompatibility(EMC);
generic emissionstandard.
Part1: Residential, commercial and lightindustry"
"Electromagneticcompatibility(EMC)genericimmunitystandard.
Part1: Residential, commercialand lightindustryenvironment".
FCC* Rules and Regulations:
EN-50082:
CFR-47:
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
CAUTION!
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the
equipment.
Usethe suppliedDCpowersupply to feed power to themachine.
Please use recommended interconnection cablestoconnect the machineto other components.
* FCCand CEapproved using STPcable(fortwisted pairproducts)
13
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For the latest information on our products and a list of Kramer
where updates to this user manual may be found.
We welcome your questions, comments and feedback.
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.
Caution
Kramer Electronics, Ltd.
E-mail: [email protected]
P/N: 2900-000108 REV 4
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