GRASS VALLEY JUPITER -, Installation And Operating Manual

Page: 197 / 310

JUPITER CM-4400 Control Module Installation and Operating Manual 197
The Sequential Path Finding Table
Note AccuSwitch only supports path finding between routers that are controlled by
AccuSwitch.
Table Entries
For the example shown in Figure 144 , there would be four descriptions of
the tie lines in the corresponding Path Finding Data table:
• from “A” to “B”
• from “B” to “A”
• from “B” to “C”
• from “C” to “B.”
The Switcher Input tables would also have Group entries for all three
switchers.
The switcher “A” table : The names of sources available through path
finding would all be referenced to the tie lines from switcher “B” to “A.”
This could include the sources that are wired directly to switcher “C.”
For the switcher “B” table
: The names of sources available through path
finding would be referenced to the tie lines from switcher “A” to “B,” AND
from “C” to “B.”
For the switcher “C” table : The names of sources available through path
finding would all be referenced to the tie lines from switcher “B” to “C.”
This could include the sources that are wired directly to switcher “A.”
Path finding entries are generally needed only for switchers that are imme-
diately adjacent. The system will use the entry information to find paths
involving one or more intermediate switchers.
Manual Selection of Alternate Routes
There may be situations where wiring would allow manual selection of
alternate routes. For example, in
Figure 144 on page 196 , the video lines
would also exist between switcher “A” and switcher “C.” However, the
Jupiter path finding software cannot take advantage of such alternate
routes; in other words, Jupiter does not “switch around busy areas.” Only
one possible route between each pair of switchers can be described on the
Path Finding Data table when the system is configured.