Grass Valley NV9000-SE v.3.0 - Manual (Page 123)

NV9000-SE Utilities • User’s Guide 103
7. Routers
Managing Virtual Crosspoints
How to Remove a Crosspoint Exclusion
1 Launch NV9000-SE. (See Launching and Exiting the Application on page 12.)
2 From the Navigation area, select the ‘Views’ pane and then ‘XPTExclusions’. The ‘XPTExclu-
sions’ table displays, as shown in Figure 7-34.
To narrow the list of physical levels that display, enter the first characters of a physical level in
the ‘Physical Level Filter’ field. The list is automatically reduced to display only levels match-
ing that character string.
Figure 7-34. XPT Exclusion Table
3 Click anywhere in the row listing the crosspoint exclusion being deleted.
4 Click
Delete
. The row is removed from the table.
5 Click
Save
.
Or
To revert to previously saved configuration, click
Revert to Saved
.
6 Click
X
on the window title tab to close the table.
Managing Virtual Crosspoints
Virtual crosspoints allow the implementation of re-entry without actually consuming any physical
inputs or outputs. The server software simulates re-entry internally. NVISION calls this virtual re-
entry. (Physical, or real, re-entry is where an output of a router is physically connected to an input
of the same router.)
The primary purpose of re-entry is to copy the route made to a given output to other router outputs.
Virtual re-entry allows an output to be routed to a re-entered output. The physical output repre-
sented by a virtual output is normally routed to the re-entered input fed by the virtual output. Any
other router output can be routed to the same re-entry. When the physical input routed to the virtual
output is changed, all outputs routed from the re-entered input change to the same new source.