digital audio
modular
processing system
C8000
4/8/16 channels DSP with SDI & system-bus I/O
C8492(B)
page
2/30
The C8492 is a variation of the next generation module platform that combines a 16 channel
3G/HD/SD-SDI embedder / de-embedder with a 16ch DSP. For a start it can be treated as the successor
of the C8491. The C8492 can be purchased as a four / eight or 16 channel processor (C8492-x)
with surround option (C8492-xS) or without it.
It may also be purchased with c8k audio bus access and is then called C8492B.
Without the SDI piggyback board it is called C8092 and offers a 16 channel c8k audio processor that is
beyond a successor of the C8086+ since it combines LevelMagic loudness control with stereo and/or
surround fail over functions inluding 5.1 downmix and 5.1 upmix. For details of versions and pricing pls.
consult the actual price list.
Technical specifications
Standards
Video complies with SMPTE 424/425M (3G, Level A and B), SMPTE 292M
(HD) or SMPTE 259M (SD). Automatic format detection.
Audio embedding and de-embedding complies with SMPTE 299M (3G,
HD) or SMPTE 272M-AC (SD).
Metadata embedding and de-embedding complies with SMPTE 2020-2.
Video Data Rate
2970/296Mbps (3G), 1485/1483.5Mbps (HD), 270Mbps (SD)
Video Formats
1080p23.975, 24, 25, 29.97, 30, 50, 59.94, 60
1080i50, 59.94, 60
720p23.975, 24, 25, 29.97, 30, 50, 59.94, 60
625i50, 525i59.94, …
Video Delay
User selectable 0 …15frames, can be disabled
Audio
24bits, transparent forwarding of PCM and compressed audio (SDI)
40bits floating point processing (DSP)
Audio Channels
SDI: 16 inputs and 16 outputs (4 groups with 4 channels each)
DSP: 16 inputs and 16 outputs
Board: 32 inputs and 32 outputs (2 and 8ch TDM format)
Audio Sample Rate
48kHz (SDI compliant)
Audio Delay
Embedder audio delay selectable 0 … 340ms per channel
DSP audio delay selectable 0 … 2s per channel
Metadata (RDD6)
2 channel input and 2 channel output, SDID selectable
Impedance
75Ohm
Return loss
> 15dB, 5 … 1485MHz
> 10dB, 1485 … 2970MHz
Cable length (max.)
250m @ SD for Belden 1694A cable
230m @ HD for Belden 1694A cable
140m @ 3G for Belden 1694A cable
BNC Input
Jitter tolerance
> 0.7UI (Alignment)
Impedance
75Ohm
Output voltage
0.8Vpp (typ.)
Return loss
> 15dB, 5 … 1485MHz
> 10dB, 1485 … 2970MHz
BNC Output
Output jitter
< 0.2UI (Alignment), < 0.5UI (Timing)
