Cabling To The Cdm-700; 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
4.5

Cabling to the CDM-700

1. For information on configuring the CRS‐170A L‐Band 1:1 Redundancy Switch and
2. For information on the cables and cable assemblies specified in this section, see:
4.5.1

Modem-to-Switch Control and IF Interface Connection

Appendix A. CABLE DRAWINGS
Figure 4‐32 shows the control and IF connections for the CDM‐700 to the CRS‐170A. All control
and IF 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.
CDM‐700 Satellite Modems for 1:1 operation, see:
•
Chapter 3. MODEM AND SWITCH CONFIGURATION
•
CDM‐700 Satellite Modem Installation and Operation Manual
(CEFD P/N MN/CDM700.IOM)
•
Appendix A. CABLE DRAWINGS
4–37
Revision 9
MN/CRS170A.IOM