Instruction Manual

Table Of Contents

CONNECTIONS AND MAINTENANCE

r DC POWER CONNECTOR

Connects to a 13.8 V DC power source. (+: Red, –: Black)

CAUTION: After connecting the DC power cable,

NMEA leads, external speaker leads, and PA speaker

leads, cover the connector and leads with an vulcaniz-

ing tape, as shown below, to prevent water seeping into

the connection.

Rubber vulcanizing

tape

t GROUND TERMINAL

Connects to a vessel ground to prevent electrical shocks

and interference from other equipment occurring.

Use a PH M3 × 6 screw (user supplied).

NOTE for the IC-M423, IC-M423G, IC-M424, and IC-

M424G: The location of the ground terminal is the same

as the GPS antenna connector on the IC-M423GE.

y GPS ANTENNA CONNECTOR

Connects to the supplied GPS antenna. (For only the IC-

M423GE)

NOTE:

Be sure the GPS antenna is positioned where it

has a clear view to receive signal from satellites, and

ﬁxed using the supplied double-sided adhesive pad.

u COMMAND MICROPHONE JACK

Connects to the optional Command microphone. (p. 89)

D Connecting to the MA-500TR/MA-510TR

An Individual DSC call can be made to the AIS target using

the transponder without entering the target’s MMSI code.

See the transponder’s instruction manual for connection de-

tails.

Connect each lead to the appropriate lead of the OPC-2014

as follows.

• Listener A (Data-H) (Yellow): To lead 3.

• Listener B (Data-L) (Green): To lead 2.

• Talker A (Data-H) (White): To lead 5.

• Talker B (Data-L) (Brown): To lead 4.

NOTE:

This instruction is for the MA-500TR. See the MA-

510TR Instruction manual for the MA-510TR

’

s connecting

instructions.