4.10 Cabling The Sdm-300L3 - Comtech EF Data CRS-170A Installation And Operation Manual

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

4.10 Cabling the SDM-300L3

Comtech EF Data SDM-300L3 Satellite Modem Installation and Operation
•
Manual (CEFD P/N MN/SDM300L3.IOM)
Comtech EF Data SMS-301 Redundancy Switch Installation and Operation
•
Manual (CEFD P/N MN/SMS301.IOM)
Appendix A. CABLE DRAWINGS
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The block diagram shown in Figure 4-49 depicts connection of a pair of SDM-300L3 Satellite
Modems together with the SMS-301 and CRS-170A switches.
Cable assemblies that may be supplied with the CRS-170A when used with the SDM-300L3 and
SMS-301 are listed in the table inlcuded in Figure 4-49. The other cables between the SMS-301
and the SDM-300L3 are the same cables supplied with the SMS-301 in an SDM-300A application.
When connecting the Control cable between the CRS-170A and the SMS-301, ensure
that screw locks on the 'D' type connectors are securely fastened. This will prevent
the accidental unmating of the cable, particularly when a standby unit is being
removed or replaced.
CEFD Part No.
CA/WR10163-1
CA/RF10453-4
Figure 4-49. SDM-300L3 Block Diagram: Cable Connection
Qty Description
1 Cable – Control, SMS-301  CRS-170A, DB-15M  DB-9M, 4'
4 RoHS-Compliant Cable – IF (Tx/Rx), 50 Ω Type 'N', 4'
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Revision 10
MN/CRS170A.IOM