Grass valley 8941 DATASHEET
J1 J2
J3 J4
J5 J6
J7 J8
J9 J10
SDI Only
Outputs
(180 º)
ASI/SDI
Output
(0 º)
SDI
Input
(0 º)
Loopthru
8900V-R
SDI
Input
(0 º)
ASI/SDI
Output
(0 º)
NTSC/PAL
Analog Out
NTSC/PAL
Analog Out
SDI Only
Output
(180 º)
Auto or
Manual
Modes
Input
Monitor
SDI Input
(270 Mb/s)
De-
serializer
Reclocker
PLD
Encoder
+ DA
EQ LED
Signal + Format LEDs
ASI/SDI
Output
0
SDI Only
Output
180
NTSC/PAL
Outputs
TRS
Detector
30
8941 Component Digital Video Monitoring Distribution Amplifier
Key Features
Passive differential loop-through design •
adds flexibility and reliability to system
Four NTSC/PAL analog composite outputs •
and four serial component digital outputs
Ancillary data and audio detection•
Auto format detection (525/625)•
Front panel LEDs indicate line count, •
EQ warning, and ancillary audio/data
presence
Remote health monitoring•
The 8941 monitoring DA supports up to four
NTSC or PAL encoded monitor outputs for
picture viewing, in addition to four reclocked
serial component digital outputs. The 8941
is tailored specifically for 270 Mb/s serial
component digital signals, both 525 and 625
formats. In addition to a composite video
monitoring output, the 8941 also indicates via
front panel LED whether either ancillary data or
audio is embedded in the signal.
Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
5.5 Watts – single slot
Input
Type: Serial digital (SMPTE 259M-C)
Connector type: BNC
Impedance: High Z differential loop-through
Supported data rate: 270 Mb/s
Return loss: >18 dB (up to 270 MHz)
Automatic cable equalization: <300 meters
(up to 270 Mb/s)
Digital Output
Type: Serial digital (SMPTE 259M-C)
Number of outputs: Four
Connector type: BNC
Impedance: 75Ω
Return loss: >18 dB (up to 270 MHz)
Analog Output
Type: Composite NTSC/PAL analog (SMPTE 170M or
CCIR 624)
Number of outputs: Four
Connector type: BNC
Impedance: 75Ω
Return loss: >40 dB (up to 5 MHz)
Performance
Digital output signal reclocked
Differential gain: <1% (analog output)
Differential phase: <1° (analog output)
Electrical length:
•Analog:9.87µstypical
•Digital:10nstypical
Temperature range: 0° to 50°C
(All specifications met)
Health monitoring: Power supply fault alert per
SMPTE 269M, input signal present, input EQ warning,
missing EAV/SAV
Indicators and Controls
Indicators: Input video present, EQ warning, ancillary
data present, ancillary audio data present
User controls: Setup, input rounding, health alarm
modes, cross-color reduction, vertical blanking, test
signal, output gain
Remote: Frame alarm
Test signal: Full field color bars
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8941
Component digital monitoring distribution amplifier
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
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