Comtech EF Data CRS-500 - Manual (Page 72)

CRS-500 1:N Redundancy System Revision 2
Cables and Connections MN-CRS500
4–16
4.3.1.4.2 EIA-422 Traffic Data Cable Connections
1. This configuration is intended for use only with CDM-625 modems that do not
have the optional IP Packet Processor installed.
2. The Redundant Modem  DSU RMI WR/00066 and DSU TMI  Traffic Modem
CA-0000069 control cable connections should have already been made, as
outlined in Sect. 4.3.2.1.
3. The Redundant Modem  DSU RMI RJ-45 10/100 Ethernet port “1” and DSU
TMI  Traffic Modem 10/100 Ethernet port “1” PP/CAT5FF7FTGY M&C cable
connections should have already been made for Ethernet System
Communications, as outlined in Sect. 0.
Referring to Figure 4-6 to make the Ethernet System Communication and EIA-422 traffic data
cable connections for any 1:N configuration.
First, make the connections for Ethernet System Communication between the CRS-500 CSU and
each Traffic Modem:
• Connect any single RJ-45 Ethernet port (“Port1” through “Port 12”) on the CRS-512
Ethernet M&C Interface to
• The RJ-45 10/100 Ethernet port labeled “1” on the Traffic Modem.
Then, for the traffic data connections, connect a CA/WR00066 cable between each CRS-500 DSU
TMI and its designated Traffic Modem:
• The CRS-316 TMI port labeled “P1 | EIA-422/530, V.35, SYNC EIA-232” to
• The CDM-625 Traffic Modem port labeled “Data Interface”.