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Grounding
The display unit contains a CPU. While it is operating, it radiates noise,
which can interfere with radio equipment. Ground the unit as follows to
prevent interference:
• The ground wire should be 1.25 sq or larger.
• The ground wire should be as short as possible.
• The signal ground and frame ground are separated, however the power
line is not isolated. Therefore, do not connect the signal ground to the
frame ground when connecting other equipment to a positive ground
battery.
External equipment
The power supply port (IN/OUT port) is commonly used for connection of
external equipment such as navigation equipment or a PC. Refer to the
interconnection diagram on page S-1 for connection.
IN/OUT port
Connector Remarks
1TD-A
2TD-B
IEC61162-1/NMEA 0183
3 RD-H
4 RD-C
IEC61162-1/NMEA 0183
5+V
6GND
Power supply (12-
24VDC)
(INPUT)
7FG
AUX port
Connector Remarks
1TD-A
2TD-B
IEC61162-1/NMEA 0183
3 RD-H
4 RD-C
IEC61162-1/NMEA 0183
5 +Vout
6GND
Max 300 mA
(OUTPUT)
7FG