Installation And Connections; Connecting The Units; Power Source Requirement; Ground Connection - Icom MR-1200RII Instruction Manual

■ Connecting the units

Power supply
10.2 to 42 V DC
Red: Black: _
+
NOTE: Use the ter mi-
nals as shown below for
the cable connections.
Crimp
Solder
NMEA1 connection (Rear panel view)
i GND
q AIS input (+)
w RXD
(FW_UP)
e NMEA 1 input (+)
or AUX input (+); DATA
r NMEA 1 input (–)
or AUX input (–); DATA
NMEA 1/2 inputs/NMEA 2 output: 4800 bps, AIS input: IEC61162-2 38400 bps

■ Power source requirement

D DC power source
DC input
(Rear panel view)
:
CAUTION
Incorrect cable connection will dam-
age the display unit.

■ Ground connection

To prevent electrical shocks and other problems, ground the display unit through the [GND] terminal. For best re-
sults, 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.

INSTALLATION AND CONNECTIONS

Display unit
PWR
NMEA1:
AIS data input
Bearing data input
u AIS input (–)
y N+1 input (–)
or AUX input (–); CLOCK
t N+1(+); data input
or AUX input (+); CLOCK
Ground
GND
NMEA2:
NMEA 0183 data input/output
Speed sensor input
NMEA2 connection (Rear panel view)
u GND (Speed sensor)
q NMEA 2
output (+)
w NMEA 2
output (–)
e NMEA 2
input (+)
The display unit 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 converter, or any internal modifications.
• DC power cable connection
Connect the supplied DC power cable as shown in the
diagram.
8
Supplied Scanner unit
NEVER connect anything
other than the supplied
Scanner unit.
Ground
y Speed sensor
input
t Regulated 5 V output.
(20 mA Max.)
r NMEA 2 input (–)
28