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The MFC-3485 and MFC-3465 are part of a family of
data transcoders for converting between the
commonly used MPEG2 Transport Stream formats in
the broadcast industry for video distribution.
Any ASI input with a payload data rate within the
range of 1.5 to 39 Mb/s will be converted to a B3ZS
encoded 44.736 Mb/s unformatted data stream by the
MFC-3485/45. The output shape may be either
"High" or "Low".
The MFC-3465/45 provides the complementary
conversion from a data payload within a 45 Mb/s
B3ZS G.703 stream to ASI format.
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For HDB3 34.368 Mb/s rates the MFC-3485/34 and
MFC-3465/34 may be used. These accommodate data
payloads in the range of 1.5 to 30 Mb/s.
The transmitted streams are padded up to the required
transmission rate with bytes of a unique pattern,
which are removed at the receiver so that the original
ASI payload rate is restored.
In the absence of a valid MPEG ASI input the
MFC-3485 will transmit "all ones". |
