Grass Valley Trinix NXT v.3.3.1 - Manual (Page 224)

224 Trinix NXT — Installation and Service Manual
Section 3 — Hardware Installation
Com Bus
In multi-frame systems, a “Com Bus” is used to loop through each frame,
up to a maximum of four. The Com Bus is intended to provide Routing
switcher monitoring of multiple frames using Broadlinx web pages or
SNMP. The Com Bus uses a 10/100BaseT (Cat 5 twisted pair) cable with RJ-
45 connectors. Shielded cable is recommended, maximum length 60
meters.
1
Maximum length for a non-shielded cable is 100 meters.
Figure 134. Example of a Com Bus
In TRX-NXT-512x512 systems, if the power supply frame is equipped with
an NR-33000 Broadlinx board, install a Cat 5 twisted pair cable between the
power supply frame Com Bus connector associated with the NR board and
one of the main frame Com Bus connectors.
If there are additional TRX-NXT-512x512 frames in the system, and they do
not have Broadlinx boards, the Com Bus should be daisy-chained to those
additional frames as well. For an illustration, see
Figure 83
NR-33000 (Broadlinx) Board Configuration
Any use of the NIC (LAN) connector, whether for control or for monitoring,
will require configuration of the NR-33000 board:
• To configure the board using Broadlinx web pages, refer to the
Broadlinx Software section on page 285.
• To configure the board using the Grass Valley NetConfig applica-
tion, refer to the NetConfig Instruction Manual.
1. Compliance with EEC, EMC, EN series, UL- 1950, and CSA C22.2 No. 950-M89 standards requires use of a shielded cable.
Com Bus cable
(see discussion
for specifications)
Trinix frames
with SR-33000
Sync/OPM
or SR-33500
Sync/OPM
boards
Trinix frame
with NR-33000
Sync/NIC/
OPM board
(Broadlinx
board)