Crystal Vision VDA110M User manual

Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England.
E-mail: [email protected] Website: www.crystalvision.tv Tel: [phone] Fax: [phone]
VDA110M
Analogue video distribution amplifier

Crystal Vision Introduction
22/09/05 1VDA110M User Manual V1.1
Contents
1 Introduction 2
2 Card edge operation 3
3 Hardware installation 4
3.1 Universal rear connectors 4
Rear module connections with RM01 5
Rear module connections with RM09 5
Rear module connections with RM18 6
Rear module connections with RM16 7
Rear module connections with RM02 8
Rear module connections with RM10 9
3.2 General purpose interface 10
3.3 Configuration 12
Changing the input termination 12
Changing the GPI output drive 12
4 Problem solving 13
5 Specification 15

Crystal Vision Introduction
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1 Introduction
The VDA110M is a 1-in, 11-out distribution amplifier with continuously variable gain
and equalisation for up to 300 metres of coaxial cable.
The VDA110M may be used with the RM01 single slot rear connector, the RM02
quadruple slot rear connector and the RM16 and RM18 double slot rear connectors. A
single slot rear connector provides five equalised outputs and five or six extra outputs and
input loop-through are available with alternative frame rear modules.
Input termination is link selectable and passive loop-through is independent of the
amplifier. The module may be removed without losing the looped-through source.
It is very compact with 12 modules fitting in a 2U frame when a single slot rear connector
is used.
The unit plugs into the front of the rack frame, and the universal connection system
allows a mixture of Crystal Vision modules in the frame. The hinged front panel of the
case reveals LED indication of input status and controls for cable equalisation and gain.
VDA110M dual analogue video DA
The VDA110M has LED and GPI indication of input presence/failure.
The main features are as follows:
•1 in 11 out video distribution amplifier (use RM18 for 11 outputs)
•Continuously variable equalisation for up to 300 metres of coaxial cable.
•GPI/LED input presence indication
•Card edge control
Note: This manual covers the VDA110M. The VDA110R with Statesman/remote control is
also available.

Crystal Vision Card edge operation
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2 Card edge operation
The front edge of the VDA110M card provides power rail monitoring, signal status and
gain/EQ adjustments for each input. There is no provision for remote control.
VDA110M front edge view
LED Location/colour Meaning when lit
IP Green (top) 525/625-line signal present on input 1
Green (bottom) Not used
Red (top) Not used
PSU Green (bottom) Power supply OK.
Adjusting cable equalisation
Cable equalisation is continuously variable from 0m to 300m using the EQ control.
Adjusting input gain
Gain is continuously variable ±3.0dB using the GAIN control. The VDA110M is
supplied with a factory-set gain of 0dB.
Video monitoring test point
A 75Ωmonitoring output is provided on two test hooks at the board edge. White is
Monitor Out and black is Ground.
On-board jumper link settings
Please refer to section 3.3 Configuration to set the following options when using card
edge control:
•Changing the input termination – 75Ωor high impedance loop through

Crystal Vision Hardware installation
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3 Hardware installation
The VDA110M single channel video distribution amplifier fits into all Crystal Vision
rack frames. All modules can be plugged in and removed while the frame is powered
without damage.
3.1 Universal rear connectors
When used with a single height rear connector, the 2U Indigo or FR2AV frame will house
up to 12 modules and dual power supplies, the 1U Indigo or FR1AV frame will house 6
modules and a single power supply. The 1U DeskTop Box has a built-in power supply
and will house up to 2 modules with a single height rear connector.
The 2U and 1U frames have a hinged front panel, which gives access to the PSU and all
modules. The DeskTop Box has a removable front. The universal frame wiring system
allows any of the interface range of modules to be fitted in any position with the use of
removable rear modules.
There are six types of rear connector available that provide system flexibility by allowing
a mix between total I/O access and module packing density.
The VDA110M may be used with the RM01 and RM09 single slot rear connector for up
to 12 modules, the RM02 and RM10 quadruple slot rear connectors for up to 4 modules
and the RM16 and RM18 double slot rear connectors for up to 6 modules in a 2U frame.
The following table summarises the rear connectors available and their recommended use
with either the single channel VDA110 or the dual channel VDA210.
Connector No of
Slots
No of
Cards *
Loop-
through
VDA110 VDA210 Differential
inputs
RM01 1 1 No 1 in 5 out 2 in 2 x 2 out No
RM09 1 1 1 1 in 4 out Not used Yes
RM15 2 1 2 Not used 2 in 2 x 4 out Yes
RM16 2 1 1 1 in 10 out Not used 1st input only
RM18 2 1 No 1 in 10 out 2 in 5 out / 5 out 1st input only
RM02 4 3 No 1 in 8 out 2 in 3 out / 4 out 1st input only
RM10 4 3 1 1 in 7 out Not used Yes
Notes: *Table shows no of cards per rear connector.
Passive loop-through is independent of the amplifier; the module may be removed
without losing the looped-through source.

Crystal Vision Hardware installation
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Rear module connections with RM01
RM01 fits in all frames Description
RM01
•12 modules in 2U, 6 in 1U &
2 in a DTB
•All frame slots can be used
BNC Signal assignment
IN Input.
OUT 1 Output
OUT 2 Output
OUT 3 Output
OUT 4 Output
OUT 5 Output
Rear module connections with RM09
RM09 fits in all frames Description
RM09
•12 modules in 2U, 6 in 1U &
2 in a DTB
•All frame slots can be used
BNC Signal assignment
IN Input.
LOOP IN Input loop through
OUT 1 Output
OUT 2 Output
OUT 3 Output
OUT 4 Output

Crystal Vision Hardware installation
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Rear module connections with RM18
RM18 fits in all frames Description
RM18 (eleven outputs)
•6 modules per 2U frame, 3 per
1U frame, 1 per DTB
•1 module per rear connector
•6 connections available
•Card fits in upper slot
•No card fits in lower slot
BNC Signal
AOutput
BInput
COutput
DOutput
EOutput
FOutput
GOutput
HOutput
IOutput
JOutput
KOutput
LOutput

Crystal Vision Hardware installation
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Rear module connections with RM16
RM16 fits in all frames Description
RM16
•6 modules per 2U frame, 3 per
1U frame, 1 per DTB
•1 module per rear connector
•6 connections available
•Card fits in upper slot
•No card fits in lower slot
BNC Signal
In Input
Loop Video Loop Video
1Output
2Output
3Output
4Output
5Output
6Output
7Output
8Output
9Output
10 Output

Crystal Vision Hardware installation
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Rear module connections with RM02
RM02 fits in Indigo and FR2AV frames Description
RM02
•9 modules per 2U frame
•3 modules per rear connector
•9 connections available
•Card 1 fits in slots 1, 5 and 9
•Card 2 fits in slots 2, 6 and 10
•Card 3 fits in slots 4, 8 and 12
•No card fits in 3, 7 or 11
BNC Signal
A Input Input
B Input Output
A Output Output
B Output Output

Crystal Vision Hardware installation
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Rear module connections with RM10
RM10 fits in Indigo and FR2AV frames Description
RM10
•9 modules per 2U frame
•3 modules per rear connector
•9 connections available
•Card 1 fits in slots 1, 5 and 9
•Card 2 fits in slots 2, 6 and 10
•Card 3 fits in slots 4, 8 and 12
•No card fits in 3, 7 or 11
BNC Signal
IN Input
LOOP Input loop through
1Output
2Output
3Output
4Output
5Output
6Output
7Output

Crystal Vision Hardware installation
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3.2 General purpose interface
GPI outputs use switch-closure to indicate VDA110M status. When closed circuit, the
GPI line is connected to Frame Ground.
Each GPI output can drive a 24V bulb (max current 500mA).
GPI Closed-circuit (Ground) Open-circuit
‘a’ Input 1 present Input 1 absent
‘b’ Not used Not used
‘c’ Not used Not used
‘d’ Not used Not used
‘e’ Not used Not used
‘f’ Not used Not used
The following tables show the GPI pinout for each frame:
2U frame GPI Connections
GPI lines ‘a’ to ‘f’ of each card connect to one of four rear remote connectors as follows:
Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin
18 (1) 9 (1) 18 (1) 26 (1) 19 (2) 20 (2)
27 (1) 16 (1) 17 (1) 25 (1) 10 (2) 11 (2)
38 (3) 9 (3) 18 (3) 26 (3) 19 (4) 20 (4)
47 (3) 16 (3) 17 (3) 25 (3) 10 (4) 11 (4)
55 (1) 6 (1) 15 (1) 24 (1) 1 (2) 2 (2)
64 (1) 14 (1) 13 (1) 23 (1) 3 (2) 4 (2)
75 (3) 6 (3) 15 (3) 24 (3) 1 (4) 2 (4)
84 (3) 14 (3) 13 (3) 23 (3) 3 (4) 4 (4)
93 (1) 12 (1) 22 (1) 21 (1) 12 (2) 13 (2)
10 10 (1) 11 (1) 19 (1) 20 (1) 21 (2) 22 (2)
11 3 (3) 12 (3) 22 (3) 21 (3) 12 (4) 13 (4)
12 10 (3) 11 (3) 19 (3) 20 (3) 21 (4) 22 (4)
Table shows Pin number (Remote number)
Note: Remote 1 and Remote 3 are 26 way high density ‘D’ type female sockets and frame
ground is pin 2 and +5V @500mA is pin 1 in each case.
Remote 2 and Remote 4 are 26 way high density ‘D’ type male plugs and frame ground is
pin 6 and +5V @500mA is pin 15 in each case.

Crystal Vision Hardware installation
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1U frame GPI connections
GPI lines ‘a’ to ‘f’ of each card connect to one of two rear remote connectors as follows:
Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin
18 (1) 9 (1) 18 (1) 26 (1) 19 (2) 20 (2)
27 (1) 16 (1) 17 (1) 25 (1) 10 (2) 11 (2)
35 (1) 6 (1) 15 (1) 24 (1) 1 (2) 2 (2)
44 (1) 14 (1) 13 (1) 23 (1) 3 (2) 4 (2)
53 (1) 12 (1) 22 (1) 21 (1) 12 (2) 13 (2)
610 (1) 11 (1) 19 (1) 20 (1) 21 (2) 22 (2)
Table shows Pin number (Remote number)
Note: Remote 1: 26 way high-density D-type socket. Frame ground is pin 2 and +5V @500mA
is pin 1.
Remote 2: 26 way high-density D-type plug. Frame ground is pin 6 and +5V @500mA is
pin 15.
DTB GPI connections
GPI lines ‘a’ to ‘f’ of each card connect to the rear remote connector as follows:
Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin
1123456
291011121314
Note: Remote connector is 15 way normal density D-type socket. Frame ground is pin 15.

Crystal Vision Hardware installation
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3.3 Configuration
The VDA110M is equipped with an on-board jumper link to change input termination.
VDA110M showing termination jumper and GPI drive resistor
Changing the input termination
Move jumper PL2 to the appropriate position to set the input termination to either 75Ωor
high impedance loop through.
Input termination
PL 2 position Termination
75R position (top) Terminated 75 Ω
Loop-through position (bottom) High-impedance
Changing the GPI output drive
As supplied, the GPI output can drive a 24V or 48V bulb. For 5V LED drive, resistor R1
(near edge connector) must be changed from 0Ωto 680Ω0805 surface-mount type. The
module can be supplied with an LED drive resistor if requested at the time of ordering.
Note: Other adjustments on the card should normally be left in the factory default positions.

Crystal Vision Problem solving
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4 Problem solving
The front edge of the card provides useful power rail and video monitoring in addition to
card-edge controls and status LEDs.
VDA110M front edge view
The top red LED is not used. The lower left hand PSU green LED indicates good power
rails when lit.
The upper right hand green LED lights when an input is present and the lower right hand
green LED is not used.
Video monitoring test point
A 75Ωmonitoring output is provided on two test hooks at the board edge. White is
Monitor Out, black is Ground.
LED indication
LED Location/colour Meaning when lit
IP Green (top) 525/625-line signal present on input 1
Green (bottom) Not used
Red (top) Not used
PSU Green (bottom) Power supply OK.

Crystal Vision Problem solving
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Basic fault finding guide
The Power OK LEDs are not illuminated
Check that the frame PSU is functioning – refer to the appropriate frame manual for detailed
information
Check that the card is seated correctly in the frame
There is no video output
Check that a valid video input is present and that any cabling is intact
The video output is low quality
Check that the cable equalisation is correct for the input cable and that the maximum length has not
been exceeded
The card no longer responds to card edge control
Check that the card is seated correctly and that the Power OK LEDs are lit
If necessary re-set the card
Re-setting the card
If required, the card may be reset by simply removing the rack power and re-applying power after a
few seconds or by removing the card from the rack and then re-inserting the card
It is safe to re-insert the card whilst the rack is powered

Crystal Vision Specification
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5 Specification
General
Dimensions 100mm x 266 mm module with DIN 41612 connector
Weight 140g
Power consumption 1 W
Inputs
Video 1 analogue. Input loop-through available with selected rear
modules
Outputs
Number and type: 11 (maximum) cable-equalised analogue
Gain adjustment
Continuous adjustment: ± 3.0dB
Cable Equalisation
Continuous adjustment: 0 to 300m Belden 8281 or equivalent
Performance
Frequency response: ± 0.05dB 0 to 6MHz.
Differential phase: < 1o
Differential gain: < 1%
Signal to noise ratio: < -60dB weighted
GPI lines
Outputs: 1 ( D-type on frame )
Input presence/absent
Status monitoring
LED display Front of card edge visual monitoring with LED indicators to
indicate:
PSU rails present
Input present

Crystal Vision Specification
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Ordering information
VDA110M Analogue video distribution amplifier w/manual control
Indigo 2 2U frame without active control panel for up to 12 modules
Indigo 1 1U frame without active control panel for up to 6 modules
Indigo DT 1U Desk top box without active control panel for up to 2 modules
Indigo 2A 2U frame with active control panel for up to 12 modules
Indigo 1A 1U frame with active control panel for up to 6 modules
Indigo DTA 1U Desk top box with active control panel for up to 2 modules
Indigo 2S Statesman enabled only 2U frame for up to 12 modules
Indigo 1S Statesman enabled only 1U frame for up to 6 modules
Indigo DTS Statesman enabled only 1U Desk top box for up to 2 modules
RM01 Single slot rear module with 6 BNCs
RM09 Single slot rear module with 6 BNCs. Allows single loop-through
RM02 Quad slot rear module with 27 BNCs for 3 boards
RM10 Quad slot rear module with 27 BNCs for 3 boards. Allows loop-
through for single VDAs
RM16 Dual slot rear module for 1 VDA with 12 BNCs. Allows single
loop-through
RM18 Dual slot rear module for 1 VDA with 12 BNCs. Accesses all 11
outputs.