Comtech EF Data CRS-311 Installation And Operation Manual page 192

1:1 redundancy switch, accessory product for use only with comtech ef data cdm-qx/qxl and slm-5650/5650a modems (modem firmware and hardware requirements apply)
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CRS-311 1:1 Redundancy Switch
Appendix E
Step  Task 
Connect the loose (unconnected) end of the
CA-0000089 Ribbon Cable to the P1 socket on the
 
CRS-515 TMI.
Install the CRS-515 TMI into its chassis slot. Engage the
TMI until it is properly seated in the receptacle on the
 
chassis' backplane.
Securely hand-tighten the thumbscrews on both the
 
TMI and RMI.
 
The retrofit has been completed and the CRS‐311 1:1 Redundancy Switch is ready to be connected to the SLM‐5650/5650A modems per 
Chapter 3. CABLES and CONNECTIONS, Sect. 3.3 SLM‐5650/5650A Modem Connections. 
 
 
E–4
Revision 7
MN/CRS311.IOM
 

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