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4408
3.6
Using the 4408 with the 4405
re-framer
It is possible that bitstream corruption may occur when switching inputs. This may
occur even if all signals are co-timed and referenced to video and when the 4408
uses a vertical switching reference derived from the same reference.
Bitstream corruption could cause downstream equipment to lose lock briefly,
resulting in audible defects. The 4405 detects the corruption and inserts mute audio
samples whilst maintaining a constant bitsream.
The 4408 can be configured to always produce a gap in the output bitsream,
guaranteeing that the re-framer will see a disturbance and re-frame.
Please refer to the 4405 re-framer manual for further details.
PL2 Switch mute
position
ON
OFF
Technical Manual
function
Bitstream gap forced during input switch
Normal
Digital Audio 8x1 Switch
23
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