Installation And Connections; Connecting The Units; Power Source Requirement; Ground Connection - Icom MR-570R Operating Manual

9

INSTALLATION AND CONNECTIONS

Connecting the units

NEVER connect anything
other than the supplied
scanner unit.
NMEA1 connection
q N.C
w N.C
e NMEA 1 input (+)*
or AUX input (+); DATA

Power source requirement

• DC power source
DC input
+
:
CAUTION
Incorrect cable connection may
damage the radar.

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 dis-
tance between the [GND] terminal and the ground point should be as short as possible.
26
NMEA1:
Bearing data input
u GND
y AUX input (–); CLOCK
or N+1 (–) data input
t AUX input (+); CLOCK
or N+1 (+) data input
r NMEA 1 input (–)*
or AUX input (–); DATA
Ground
_
Ground
GND
PWR
Red:
NMEA2:
NMEA 0183 data input
Speed sensor input
NMEA2 connection
u GND (Speed sensor)
q DATA output (+)
w DATA output (–)
e NMEA 2 input (+)*
*NMEA input impedance: 500
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.
+
Black: _
Battery
12 to 32 V DC
y Speed sensor input
t Regulated 12 V output.
(20 mA Max.)
r NMEA 2 input (–)*