Vega 30 Router User Manual
User-defined Sources
Sources and Destinations 9.3
Issue1 Revision 1
Page 168
© 2017 SAM
9.3.5 Silence Audio Channel Source
If silence is required on an audio channel, then a source must be defined with silence on the
required channel and a route then made.
Silence is an internal source available to the router.
9.3.6 Null Source
For each user-defined source, video and audio channels may be defined.
If no video source, nor audio channel source, nor silence is required in a particular
user-defined source, a ‘null source’ must be entered into the source definition. To enter a ‘null
source’:
•
Enter a blank (in the Web interface)
or
•
Enter a ‘0’ (in a RollCall template).
In this case, if this source is routed to a destination, then the destination channel will be
unchanged by ‘null source’.
Initially, all user-defined sources are set to ‘null source’ for each user-definable channel
source. (Web interface screen table entries are blank. RollCall template screen table entries
show ‘0’ or ‘---’.)
9.3.7 Partial Sources
A user-defined source comprises video and 16 audio channels. If there are one or more null
sources in the user-defined source, it is called a partial source.
When a partial source is routed to a destination, the channel source(s) with null source(s) in
them do not change the corresponding destination channel(s) - these destination channels
are unaffected by the route.
After the route is made, the routed source tally displayed on a routing panel will indicate the
last source name to be routed to that destination, whether partial or not.
9.3.7.1
Partial Source Routing Example
The example illustrates how destination channels are unaffected when a partial source is
routed. Figure 123 shows the following routing sequence and shows the resulting destination:
1.
Select a destination.
2.
Pre-select a partial source.
3.
Take, i.e. make the route.
