Comtech EF Data CDM-550T - Manual (Page 144)

CDM-550
Cable Drawings T Satellite Modem Revision 3
MN/CDM550T.IOM
A-4
A.1.3 RS-232 Remote Control Cable
Figure A-3 depicts the cable required for a simple RS-232 connection between the CDM-550T Remote Control port and a PC serial
port. This cable is also needed for Flash upgrading.
Figure A-3. CDM-550T RS-232 Remote Control Port to PC 9-Pin Serial Port