Comtech EF Data CRS-311 - Manual (Page 150)

CRS-311 1:1 Redundancy Switch Revision 7
Appendix A MN/CRS311.IOM
A-6
A.3.1 Optional EIA-485 Multi-drop Ribbon Cable (6X DB-9F)
Use this optional EIA‐485 Multi‐drop Ribbon Cable (Figure A‐4) to daisy‐chain the CDM‐Qx/QxL Redundant and Traffic Modems together for
communications with the CRS‐311. If Electromagnetic Compatibility (EMC) is a concern, then use the standard EIA‐485 Multi‐Drop Shielded
Cable (Figure A‐5).
Figure A-4. Optional EIA-485 Multi-Drop Ribbon Cable (CEFD P/N CA-0000095)