Specifications
19537P-26 (11-12)
10
of 15
2. Radio Cables
The C98-20RD Radio Cable is used to interface a marine or mobile radio to the M-RIM. One end of the
cable connects to the M-RIM and the other end connects to the radio. Since the interface is different for
each type of radio, the C98-20RD is left un-prepared at the radio end so that the installer may choose the
correct interface.
Note: This procedure applies only to the C98-20RD Radio Cable. Contact factory if assistance with other
cables is needed.
Parts/Tools Required
C98-20RD Radio Cable (One for each radio to be interfaced)
Radio adapters (for interfacing to radios—supplied by radio manufacturer)
Pin assignments for each radio adapter (supplied by radio manufacturer)
Wire Crimping/Cutting/Soldering/etc tools (depends on radio interface)
Wire ties
Figure 5: C98-20RD Radio Cable
Procedure
Determine the path of the cable between each radio and the M-RIM. The radios should already
be installed and tested. The cable should be routed using under-deck conduits and be as far as
possible from radio antenna coax cables and anywhere water may collect.
Measure the length of cable necessary. Add 3 feet for a service loop and trim.
Route the cable. The connector end connects to the M-RIM. Leave enough excess cable at the
radio end for preparation of radio interface.
Determine which radio letter this radio is (i.e., Radio A, B, C, or D) and connect Radio Cable to
the M-RIM. See Figures 1&4 for connector locations.
To connect the cable to the M-RIM, align keyways and push. Then push and turn collar
clockwise until it stops. Pull back gently on the cable to ensure connector is properly locked.
Prepare the radio interface in accordance with manufacturer’s instructions. See Table 2 for
C98-20RD Radio Cable wire color functions.
Repeat this procedure for remaining radios.
Color Function
Red Mic Hi (+)
White Mic Lo (-)
Orange PTT Hi (+)
Brown PTT Lo (-)
Green Ear Hi (+)
Black Ear Lo (-)
Shield Shield (To PTT Lo or Mic Lo)
Table 2: Radio Cable Wire Color Functions