Icom MR-1000RTM Installation and Connections, Connecting the units, Power source requirement

9 INSTALLATION AND CONNECTIONS

■Connecting the units

Supplied scanner unit

NEVER connect any- thing other than the sup- plied scanner unit.

NMEA1:

Bearing data input

	Power supply
PWR	10.2 to 42 V DC
	Red: +	Black: _

GND

Ground

NMEA2:

NMEA 0183 data input

Speed sensor input

NMEA1 connection NMEA2 connection

q N TXT	i GND
(NMEA 2 output)	u N.C

w RXD	y AUX input (–); CLOCK
	or N+1(–) data input

e NMEA 1 input (+)	t AUX input (+); CLOCK
or AUX input(+); DATA	or N+1(+); data input

rNMEA 1 input (–)

or AUX input (–); DATA

uGND (Speed sensor)

q NMEA 2	y Speed sensor
output (+)	input
w NMEA 2	t Regulated 12 V output.
output (–)	(20 mA Max.)
e NMEA 2	r NMEA 2 input (–)
input (+)

■Power source requirement

DDC power source

DC input Ground

CAUTION: Incorrect cable connection may dam- age the radar.

The radar is designed for connection to any power source if the voltage is 10.2–42 V DC, so that a 12, 24, or 32 V DC battery can be used without a DC-DC con- verter, or any internal modifications.

•DC power cable connection

Connect the supplied DC power cable as shown in the diagram.

■Ground connection

To prevent electrical shocks and other problems, ground the display unit through the [GND] terminal on the unit’s rear panel. For best results, connect a heavy gauge wire or strap to the nearest grounding point on the boat. The distance between the [GND] terminal and the ground point should be as short as possible.

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