Grass Valley Trinix v.2.4.1 User Manual
Page 64
Planning Guide
64
Planning and Installation Manual
DV-33256
Recommended protected path ranges for DV-33256 routers are as fol-
lows:
For example, to protect an output in the range 1-128, choose a corre-
sponding input in the range 1-128; this will be the primary path. For the
secondary (failover) path, choose an output in the range 129-256 and a
corresponding input in the range 129-256.
This will provide the most independent possible paths through a DV-
33256, i.e., the primary path will use one set of input, matrix, and
output boards while the secondary path will use a different set of
boards.
CAUTION With a DV-33256, it isn’t possible to arrange completely independent
paths, i.e., paths that use different power supplies. Protected path con-
figuration for DV-33256 routers provides redundancy for matrix boards
and input and output boards only.
Note that for a DV-33256 router the maximum number of protected
paths is 128.
A more detailed example is shown in
. This table shows a
sequential wiring scheme for a system yet to be installed or a system
where cables will be re-arranged in a symmetrical pattern in order to
simplify protected path operation.
Table 6.
Primary path
Secondary path
Out
In
Out
In
1-128
1-128
129-256
129-256
Table 7. DV-33256 protected paths (example of sequential numbering)
Primary path
Secondary path
Out
In
Out
In
Name
No.
Name
No.
Name
No.
Name
No.
AirPP
1
MCPP
1
AirSP
129
MCSP
129
Sat1PP
2
StuAPP
2
Sat1SP
130
StuASP
130
Sat2PP
3
StuBPP
3
Sat2SP
131
StuBSP
131
.
.
.
.
.
.
.
.
.
.
.
.
NetPP
128
MainPP
128
NetSP
256
MainSP
256