Icom MR-570R, Operating Manual

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9
26
INSTALLATION AND CONNECTIONS
q
DATA output (+)
w
DATA output (–)
e
NMEA 2 input (+)*
r
NMEA 2 input (–)*
u
GND (Speed sensor)
y
Speed sensor input
t
Regulated 12 V output.
(20 mA Max.)
q
N.C
w
N.C
e
NMEA 1 input (+)*
or AUX input (+); DATA
r
NMEA 1 input (–)*
or AUX input (–); DATA
u
GND
y
AUX input (–); CLOCK
or N+1 (–) data input
t
AUX input (+); CLOCK
or N+1 (+) data input
■
Connecting the units
Ground
Battery
12 to 32 V DC
Red: Black:
_
PWR
GND
NEVER connect anything
other than the supplied
scanner unit.
NMEA1:
Bearing data input
NMEA2:
NMEA 0183 data input
Speed sensor input
+
■
Power source requirement
• DC power source 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 dis-
tance between the [GND] terminal and the ground point should be as short as possible.
CAUTION
:
Incorrect cable connection may
damage the radar.
Ground
_
DC input
+
NMEA1 connection NMEA2 connection
*NMEA input impedance: 500
ø