Comtech EF Data CRS-500, Installation And Operational Manual

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CRS-500 1:N Redundancy System
Revision 4
Cables and Connections 5–14 MN-CRS-500
5.3.1.4.2 EIA-422 Traffic Data Cable Connections
1) This configuration is intended for use only with CDM-625/625A 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
directed in Section 5.3.2.1.
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 directed in Section 5.3.1.3
.
See Figure 5-6 to make the Ethernet System Communication and EIA-422 traffic data cable
connections for any 1:N configuration.
Do these steps:
1. Make the connections for Ethernet System Communication between the CRS-500 CSU
and each Traffic Modem:
a. Connect any single RJ-45 Ethernet port (“Port1” through “Port 12”) on the CRS-
512 Ethernet M&C Interface to
b. The RJ-45 10/100 Ethernet port labeled “1” on the Traffic Modem.
2. For the traffic data connections, connect a CA/WR00066 cable between each CRS-500
DSU TMI and its designated Traffic Modem:
a. The CRS-316 TMI port labeled “P1 | EIA-422/530, V.35, SYNC EIA-232” to
b. The CDM-625/625A Traffic Modem port labeled “Data Interface”.