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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
q
C98-20RD Radio Cable (One for each radio to be interfaced)
q
Radio adapters (for interfacing to radios
—
supplied by radio manufacturer)
q
Pin assignments for each radio adapter (supplied by radio manufacturer)
q
Wire Crimping/Cutting/Soldering/etc tools (depends on radio interface)
q
Wire ties
Figure 5: C98-20RD Radio Cable
Procedure
q
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.
q
Measure the length of cable necessary. Add 3 feet for a service loop and trim.
q
Route the cable. The connector end connects to the M-RIM. Leave enough excess cable at the
radio end for preparation of radio interface.
q
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.
q
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.
q
Prepare the radio interface in accordance with manufacturer’s instructions. See
Table 2
for
C98-20RD Radio Cable wire color functions.
q
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
