GRASS VALLEY 8920DMX Datasheet

14 8920DMX Video/Audio Demultiplexer (De-embedder)
Key Features
• Extracts up to two AES/EBU streams
• Supports 48 kHz audio
• EDH detection
• 75Ω unbalanced or 110Ω balanced digital
audio outputs
• Supports networked control and
monitoring
Specifications
Supported Frame Types
GeckoFlex with 8900V-R GeckoFlex Video rear module,
Gecko video frames: 8900TX-V, 8900TF-V, 8900TFN-V
Power Rating
7 Watts – single slot
Video Input
Signal type: SMPTE 259M, EBU 3267-E
Connector: Differential loop-through BNC
Impedance: High Z
Return loss: >15 dB up to 270 MHz
Cable equalization: <300 meters
Audio Output
Signal type: AES-3id-1995 (75Ω), AES3 (110Ω)
Number of channels: Four (two streams)
Connectors: BNC (75Ω), terminal block adapter
(110Ω)
Sample rate: 48 kHz
Resolution: 20- or 24-bit
This companion to the 8920MUX simplifies
the management of multichannel audio
by extracting up to two 48 kHz AES audio
streams (up to four discrete channels) from
one of the eight available AES groups in
the ancillary data space of embedded 525
or 625 serial digital component video. The
8920DMX recognizes and preserves the ID
and channel status of the 20- or 24-bit AES
group and can delete groups assigned for
extraction or pass them through to another
demultiplexer. The two AES/EBU outputs can
be either 75Ω unbalanced or 110Ω balanced
to accommodate a variety of digital audio
processing equipment.
SDI
DEMUX
w/Embedded
Audio
Delay
Delay
Video Output
Signal type: SMPTE 259M
Connector: Four 75Ω or two 110Ω via 8900CBT-04
Return loss: >15 dB, 5 to 270 MHz
Error checking: EDH embedded
Performance
Operating temperature: 0° to 45°C
Humidity: 10% to 90% non-condensing
Indicators and Controls
Indicators: Video present, audio present, fault, power,
communication active, configuration, remote override
Controls: Audio group selection
Remote: All indicators and controls via Ethernet
8900V-R
J1 J2
Video
Output
J3 J4
J5 J6
(75/110 )
AES 1 Output
J7 J8
(75/110 )
AES 1 Output
J9 J10
Loopthru
8900CTB-04
110Ω input adapter
Reclocker
AES TX
Micro-
processor
AES TX
LEDs
Ethernet
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900V-R GeckoFlex
Video rear module.
8920DMX
Audio/video demultiplexer, 75Ω
8920DMX-110
Audio/video demultiplexer, 110Ω
8900CTB-04
BNC to terminal block adapter to convert 8920DMX to
8920DMX-110
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
Video
Output
(75/110 )
AES 2 Output
(75/110 )
AES 2 Output
Video
Input
SDI
w/Embedded
Audio
Dual 75
Single 110
AES/EBU
AES/EBU
Dual 75
Single 110