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
1. For information on configuring the CRS‐170A L‐Band 1:1 Redundancy Switchwith
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

Figure 4‐43 shows the control and IF connections for the CDM‐710G to the CRS‐170A. As with
the CDM‐710, all control and IF components are provided for the CDM‐710G 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.
the CDM‐710 Broadcast Satellite Modems for 1:1 operation, see:
•
Chapter 3. MODEM AND SWITCH CONFIGURATION
•
CDM‐710G High‐Speed Satellite Modem Installation and Operation
Manual (CEFD P/N MN‐CDM710G.IOM)
•
Appendix A. CABLE DRAWINGS
4–51
Revision 9
MN/CRS170A.IOM