Cabling The Cdm/R-570Al-Ip - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Appendix N
N.7

Cabling the CDM/R-570AL-IP

Figure N-5 shows connection of a pair of CDM/R-570AL-IP s to the CRS-170A L-Band 1:1
Redundancy Switch. The table provided here lists cable assemblies that may be supplied with the
CRS-170A.
Quantity Part #
2 CA/WR9378-4
4 CA/RF10453-4
It is essential that you correctly make the control and Rx/Tx IF cable connections. For example,
the Tx IF from Modem 'A' connects to the Tx IF port 'A' on the CRS-170A, and Modem 'B'
connects to the Tx IF Port 'B' (and the same for the Rx IF connections). Failure to observe this
cabling requirement will result in system malfunction.
When connecting the control cables between the CRS-170A and the modems, make
sure that the screw locks on the Type 'D' connectors are securely fastened. This
prevents the accidental unmating of the cable, particularly if a standby unit must be
removed or replaced.
Description
Control Cable, Universal, DB9 Male to Male, 4'
RoHS-Compliant Cable – IF (Tx/Rx), 50Ω Type 'N', 4'
Figure N-5. CDM/R-570AL-IP and CRS-170A Interconnect
N–11
MN-CDM570A
Revision 3