Comtech EF Data CRS-311 - Manual (Page 156)

CRS-311 1:1 Redundancy Switch Revision 7
Appendix A MN/CRS311.IOM
A-12
A.3.7 Control ‘Y’ Overhead Cable for CRS-351 to SLM-5650/5650A (DB-50M to 2X DB-25F)
This cable (Figure A‐10) connects the CRS‐351 Overhead Module on the CRS‐311 to the SLM‐5650/5650A Redundant and Traffic Modem “P1
Overhead Data” ports. Use this cable as needed for protection of the overhead signals (backward alarms, audio ESC, data ESC, etc.).
Figure A-10. SLM-5650/5650A Control ‘Y’ Overhead Cable (CEFD P/N CA-0000006)