78
Crosspoints
Pass-Through Audio
The panel operator must be aware of the names (configured in NV9000-SE Utilities) of the basic
pass-through source and the individual “extended” pass-through sources.
Configuring Pass-Through
Pass-through configuration is performed in MRC and in NV9000-SE Utilities. Pass-through
sources can then be used as often as required by panel operators.
To configure pass-through in MRC, go to the ‘Router Levels’ page. Specify (1) a basic pass-
through source in the ‘Pass-Thru Audio Source’ field and (2) up to 16 extended pass-through
sources in the ‘Pass-Thru Shuffle Audio Sources’ table. These sources will be sacrificed: you
cannot use the pass-through source as a normal audio source. Therefore, choose unused audio
port numbers for pass-through sources.
Regarding unused audio port numbers: always choose unused audio port numbers that are
greater than the number of video input ports of the router. Unused port number between
1152 and 2304 will work well for any NV8500 router.
Basic Pass-Through Source
In NV9000-SE Utilities, create an audio source device whose port number is the same as the
basic port number you entered in MRC’s router levels page. This source should
not
have a video
level. Name the source “passthru” or something similar that is acceptable to panel operators.
After the router and the NV9000 control system are configured and running, control panel oper-
ators may use the designated pass-through source to perform pass-through routes.
Panel operators make a
basic
pass-through route by taking the pass-through audio source to
the desired destination.
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 all 16 audio channels. These
flags tell the output to use the corresponding disembedder channel output in the output
stream. Refer to Figure 3-5.
Extended Pass-Through Sources
There are several ways to configure pass-through audio sources in NV9000-SE Utilities. The
different methods are used in different ways and have different purposes.
Method 1
Create a (single) source device whose individual audio port numbers are the same as the
numbers you entered in the ‘Pass-Thru Shuffle Audio Sources’ table of MRC’s router levels page.
This source should have as many audio levels as your video signals carry. It does not matter
whether the source has a video level. Name the source something that is acceptable to panel
operators as a pass-through source.
After the router and the NV9000 control system are configured and running, control panel oper-
ators may use the designated pass-through source to perform pass-through routes.
Содержание NV8500 Series
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Страница 124: ...108 Expanded NV8576 Plus Connecting the NV8576 Plus Frames ...
Страница 134: ...118 Alarms Making Alarm Connections ...
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Страница 161: ...145 NV8500 Series User s Guide Network Page Time Page ...
Страница 204: ...188 M3 Cards M3 Cable and Connectors ...
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