9 CONNECTIONS AND MAINTENANCE

Connections

q

w e r t

Do not

loose!

y

!0

Ferrite core*

o i u

eEXTERNAL SPEAKER LEAD (Yellow) Connects to an external speaker.

rHAILER/FOGHORN (–) LEAD (Black)

Connects to a hailer speaker (25 W nominal at 13.8 V/4 ).

tHAILER/FOGHORN (+) LEAD (Blue)

Connects to a hailer speaker (25 W nominal at 13.8 V/4 ).

yANTENNA CONNECTOR

Connects a marine VHF antenna with a PL-259 connector to the transceiver.

CAUTION: Transmitting without an antenna may dam- age the transceiver.

qNMEA IN LEAD (Red)

Connects to a GPS receiver for position indication.

A NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC, GGA, GNS, GLL and VTG) compatible GPS receiver is required. Ask your dealer about suitable GPS receivers.

wNMEA OUT LEAD (White)

Connects to a PC or navigation equipment (NMEA0183 ver. 3.01 sentence formatters DSC, DSE compatible) for position data received from other ships.

uGROUND TERMINAL

Connect this terminal to a vessel ground to prevent electri-

cal shocks and interference from other equipment occur- ring. Use a self-tapping screw (3 8 mm.)

iEXTERNAL MICROPHONE JACK Connects the optional command microphone.

oMICROPHONE CONNECTOR

Connects the supplied microphone depending on version. Ask your dealer for details.

!0DC POWER CONNECTOR

Connects the supplied DC power cable from this connector to an external 12 V battery.

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Icom IC-M504 instruction manual Connections and Maintenance, 0DC Power Connector