Cabling To The Cdm-710; Modem-To-Switch Control And If Interface Connection - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Cables and Connections
4.7

Cabling to the CDM-710

1. For information on configuring the CRS-170A L-Band 1:1 Redundancy Switch
2. For information on the cables and cable assemblies specified in this section, see:
4.7.1

Modem-to-Switch Control and IF Interface Connection

Appendix A. CABLE DRAWINGS
Figure 4-38 shows the control and IF connections for the CDM-710 to the CRS-170A. All IF and
control components are provided in the KT/12551 CRS-170A L-Band 1:1 Redundancy Kit
(terrestrial data interface components/kits must be ordered separately). Note the following:
1. To provide user access to modem "Fault Summary Relay," Control 'Y' Cable CA/WR13011-4,
sold separately, is available for use in place of the CA/WR12135-1 cable.
2. Control Cable CA/WR12135-1 will mute the Offline modem's Tx IF. If this is not desired, then
an alternate cable, Control Cable CA-0000187, sold separately, is available for use in place of
the CA/WR12135-1 cable.
with the CDM-710 Broadcast Satellite Modems for 1:1 operation, see:
•
Chapter 3. MODEM AND SWITCH CONFIGURATION
• CDM-710 Broadcast Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM710.IOM)
• Appendix A. CABLE DRAWINGS
4–45
Revision 10
MN/CRS170A.IOM