DMX 200

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De-Multiplexer for Embedded Audio

 AES/EBU digital audio output from SDV
 Analogue headphone output
 Analogue audio outputs of channels 1 & 2 or 3 & 4
 Output muting in absence of embedded audio
 Power-fail bypass relay

The DMX200 module extracts AES/EBU digital audio that has been embedded into serial digital video
(270Mb/s). It conforms to SMPTE272M, extracting from any one of the four groups. Two AES/EBU digital audio
streams are produced, giving two stereo pairs. Also provided is an analogue headphone and balanced line
output for monitoring either of the stereo pairs.

The DMX200 is part of our Series 200 range of products. These can be mounted in a 1U or 3U frame. All the
modules in the Series 200 range are eurocard size and can plug into the front of the frame for easy access.
Specifications

Video Input:
Serial digital (270Mb/s) with reclocked loop through to EBU Tech 3267-E and SMPTE
259M conaining embedded audio to SMPTE 272M-A.

Video Output:
Active loop through (with power fail relay bypass) output on BNC.

Audio Outputs:
Two AES/EBU digital audio streams conforming to EBU Tech 3250-E (or AES-3-1992)
and stereo analogue line level, balanced, low impedance (both on a single 15 way
D-type socket). Headphone monitoring, single ended, stereo, low impedance (from
front of board). Unbalanced 75R output of the AES/EBU signal is available as an option
- contact Microvideo for further details.

Control:
DIP switches - Select which group is extracted from.
- Select channels (1 & 2 or 3 & 4) to convert to analogue for
monitoring output.
LEDs indicate - SDV input.
Embedded audio on SDV.

Physical:
The module will fit in a Microvideo 1U or 3U frame.
Power consumption is 8W per card.


                   

 
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