Grass Valley MRC v.1.2 - Manual (Page 165)

155
Miranda Router Configurator
User’s Guide
The general procedure for performing pass-through takes (with shuffle) is:
1 Selects a destination.
2 Select a destination level (say Audio 3).
3 Choose a pass-through source (say Pass12).
(Taking pass12 to audio 3 of the destination means that audio channel 12 of the video at the
output is taken to audio channel 3 of the output.)
4 Repeat steps 2 and 3 for any other portions of the overall audio shuffle you want to achieve.
5 Press ‘Take’.
This method gives operators independent control of all pass-through channels (or as many
pass-through channels as you want your system to have).
Notes
When the router detects that the pass-through source was selected, it does not route audio
from the pass-through source, but sets the pass-through flags for the chosen audio levels. Each
flag tells the output to use the corresponding disembedder channel output in the output
stream. Refer to Figure 6-2.
 A port designated as the “pass-through source” cannot also be used as a normal source.
 “Pass-through” audio is not compatible with DHP.
 If a pass-through source is “taken” to an output that is not on a disembedder/embedder
card, the take is rejected (with an error message).
 Only NV8500 family routers (at firmware version 3.3.1 or later) support pass-through audio.