Specifications Ordering Information
J1 J2
J3 J4
J5 J6
J7 J8
J9 J10
SDI only
Outputs
(180 º)
SDI only
Output
(180 º)
ASI/SDI
Outputs
(0 º)
Loopthru
8900V-R
ASI/SDI
Outputs
(0 º)
ASI/SDI
Output
(0 º)
ASI/SDI
Input
(0 º)
EQ Warning
Adjustment Input
Monitor EQ Warning LED
SDI or 4fsc
Outputs (180)
Only
ASI/SDI or 4fsc
Outputs (0)
EQ
ASI, SDI or
4fsc Input
278906 Analog Video Clamping Equalizing Distribution Amplifier w/SNMP
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8931
Digital video fanout distribution amplifier
The 8931 digital video fanout distributor
amplifier is designed for distributing all major
serial digital video formats. It is especially
suited for short runs of recently reclocked
signals where jitter is not a problem.
Key Features
Passive differential loop-through design•
adds system flexibility and reliability
Eight outputs•
Auto input cable equalization up to 300m•
Supports both component and composite•
signals, all data rates 143, 177, 270,
360 Mb/s
Front panel LED indicate EQ warning•
Remote health monitoring•
NOTE: ASI compatibility with 0° in phase
outputs
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
2.5 Watts – single slot
Input
Type: Serial digital (SMPTE 259M A, B, C, and D)
Connector type: BNC
Impedance: High Z differential loop-through
Supported data rates: 143, 177, 270, and 360 Mb/s
Return loss: >18 dB up to 270 MHz,
>15 dB up to 360 MHz
Automatic cable equalization:
<300 meters (up to 270 Mb/s)
<200 meters (up to 360 Mb/s)
Output
Type: Serial digital (SMPTE 259M A, B, C, and D)
Number of outputs: Eight
Connector type: BNC
Impedance: 75Ω
Return loss:
>18 dB up to 270 MHz
>15 dB up to 360 MHz
Performance
No signal reclocking
Electrical length: 3.4 ±1 ns
Temperature range: 0° to 50°C
(all specifications met)
Health monitoring: Power supply fault alert per
SMPTE 269M
•Inputsignalpresent
•InputEQwarning
Indicators and Controls
Indicators: EQ warning
Remote: Frame alarm
8931 Digital Video Fanout Distribution Amplifier
For detailed specifications, installation and setup
instructions see:
www.grassvalley.com/docs/modular
