AAV-MUX
Rev. 1
Optical wavelength (C1nn0):
1270, 1290, 1310, 1330, 1350, 1370, 1390,
1410, 1470, 1490, 1510, 1530, 1550, 1570,
1590 or 1610nm ±6nm as per ITU-T G.694.2
Optical power:
0 dBm
Jitter (UI=unit interval):
Max. 0.135 UI
Return loss:
Typ. > 40 dB
Maximum reflected power:
4%
Connector:
SC/UPC
2.4.3 GPI
GPI Output:
Power good, SDI unlock, Embed error,
Audio overload1, Audio overload2.
GPI Connector:
RJ45
Signal type:
Open collector transistor.
Maximum voltage:
50 V
Maximum current:
400 mA if only one output driven, 100 mA all
outputs driven.
3 Detailed Description
The digital video passes through the receiver and the EDH information is
processed in the de-serialiser. It then is passed to the embedding processor .
The video signal is then re-serialised and sent to the electrical and optical
outputs.
The analogue audio inputs go to electronically balanced inputs which reduce
the input level by 12dB. The next stages change the level according to the
configured gain setting and send the resulting signals to the input of the A/D
converters.
4 Configuration
270 Mbit digital video may have up to four audio groups which are numbered
1 to 4. Each audio group has four mono audio channels or two stereo audio
signals. The AAV-MUX works with a single audio group. Digital VTRs usually
embed audio in group 1. Embedding on audio group 1 with the AAV-MUX
should be used if the original audio is absent, or is to be replaced. Use another
group number if extra audio is to be embedded.
NOTE!
The AAV-MUX removes all existing audio when embedding on group 1.
Embedding on other audio groups appends (adds) the new group to the
existing embedded audio.
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