Grass Valley Trinix NXT v.3.3.1 - Manual (Page 149)

Trinix NXT — Installation and Service Manual 149
Setting the Rear Panel Dip Switch
tion is changed, the board must be rebooted. This switch is used in multiple
frame systems when there are multiple active NR boards that are connected
to the Com Bus. For example, if two 128 or 256 size frames are used in a
fully redundant protected path system.
Note If the “A” switch is closed when the NR33000 board is installed in the frame,
it will not drive the Com Bus.
The “B” switch is closed in output-monitor-expanded systems where
output monitor signals are brought through a combiner. See Monitoring
with Expanded Systems
on page 207 .
The “C” switch must be closed in TRX-NXT-512x512 systems whenever the
Sync Redundant switch is closed. This will prevent use of any sync refer-
ence connected to the SR-33500 Sync/OPM board.
A B C Switches and the TRX-NXT-512x512 Systems
This section applies to both the TRX-NXT-512x1024 and TRX-NXT-512x512
systems as well.
When using Telnet, or replacing a NR33000 (Broadlinx) board, in a network
controlled-redundant system, you will need to manualy set the Network
parametrs on the secondary frame
The “A” switch is labeled "COM SLAVE" and if the “A” switch is closed
when the NR33000 board is installed in the frame, it will not drive the Com
Bus.
The "B" switch is ignored since Monitor expansion is done through the
"daisy-chaining" method, which eliminates the need for combiners.
The "C" switch is ignored.
Miscellaneous Rear Panel Connectors
GPIO/TC - General Purpose / Time Code connector
The GPIO connection is reserved for future use.
The "TC" input is used for SMPTE LTC time-code. It supplies LTC to the
Active Broadlinx card and then to any Trinix Multi-viewer cards through
the Active Broadlinx.
Note Multi-viewer cards that are in other frames without Broadlinx cards may
receive this LTC data through the Com Bus.
Console A & B connectors
These connectors are for serial connection and type various Broadlinx com-
mands.