Comtech EF Data CRS-311, Installation And Operation Manual

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CRS-311 1:1 Redundancy Switch Revision 7
Cables and Connections MN/CRS311.IOM
3–37
3.3.7 Overhead Data Connections – CRS-351 Module to Modems
Your equipment should be connected to the “P1 User Interface” port on the CRS ‐ 351 Overhead
Switch Module. This replaces the direct connection to the Traffic Modem’s “P1 Overhead Data”
port.
Referring to Figure 3 ‐ 22 :
Connect and secure the CA ‐ 0000006 Control ‘Y’ Cable between the CRS ‐ 351 module and the
SLM ‐ 5650/5650A modems as follows:
•
DB ‐ 50F connector labeled “J1 Modem Adapter ‘Y’ Cable” on the CRS ‐ 351 module, and
•
DB ‐ 25M “P1 Overhead Data” connectors on the SLM ‐ 5650/5650A Traffic and Redundant
modems.
Figure 3-22. SLM-5650/5650A Overhead Data Cables