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
4.6

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:
4.6.1

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 9
MN/CRS170A.IOM