Grass Valley Trinix v.2.4.1 - Manual (Page 145)

Output Monitoring
Planning and Installation Manual 145
For all expanded systems with Monitoring, the “B” switch on the rear
of the chassis must be set to ON (closed). See page 98 (128 x 128);
page 100 (256 x 256); or page 102 (512 x 512).
The “Monitor” switch must also be set to identify the total number of
outputs (see page 141 ).
In systems controlled by SR-33000 boards, Monitor Expansion jumpers
JN3 and JN4 on the SR-33000 boards must be set to “Exp.” See page 120 .
Note Output monitoring is not available for input-expanded systems con-
trolled by an SR-33000 Sync/OPM board.