Comtech EF Data CRS-170A - Manual (Page 75)

CRS-170A L-Band 1:1 Redundancy Switch MN/CRS170A.IOM
Cables and Connections Revision 13
5–5
5.3 Cabling to the CDM-625/A
1) For information on the CDM-625/A’s 1:1 auto-enable functionality, see:
• Chapter 4. MODEM
AND SWITCH CONFIGURATION
• CDM-625A Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625A)
• CDM-625 Advanced Satellite Modem Installation and Operation Manual
(CEFD P/N MN-CDM625)
2) For information on the cables and cable assemblies specified in this section, see
Appendix A. CABLE DRAWINGS.
5.3.1 CRS-170ACDM-625/A Control and IF Interface Connections Using
Cabling Kit KT-0000160
You must order terrestrial data interface components/kits separately. See Sect. 5.3.2
for CDM-625/A terrestrial data interface configuration and connection examples and
details.
You must use Comtech EF Data’s KT-0000160 1:1 Redundancy Control/IF Interface Cabling Kit
(Sect. 5.2.1) for your control and L-Band Modem-to-Switch cabling connections. Figure 5-1,
Figure 5-2, and Figure 5-3 show how to connect a pair of CDM-625/A modems together with the
CRS-170A L-Band 1:1 Redundancy Switch module. The table included with each figure lists the
items you will need from this kit for your initial setup.
CAUTION – It is ESSENTIAL that you make the control and the IF Rx and Tx
connections correctly. See Sect. 5.3.1.1 for details about the CDM-625/A Modem-to-
Switch Control Interface connection, and Sect. 5.3.1.2 for details about the CDM-
625/A Modem-to-Switch IF Interface connections.