JRC JMA-5212-4/6 - Ais;Nmea (J6)

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2.4.4. AIS/NMEA (J6)
AIS/NMEA (J6) is used for connection with the AIS or external navigator.
*) If the AIS is connected, other NMEA equipment cannot be connected.
PIN NAME DESCRIPTION APPLICATION
1 NMEA RXD+
Signal (+) received from external
equipment
2 NMEA RXD-
Signal (-) received from external
equipment
3 NMEA TXD+ Signal (+) transmitted to the AIS
4 NMEA TXD- Signal (-) transmitted to the AIS
5 GND GND
6 EVENT+ Dry contact input 1
Own ship's position
mark
7 EVENT- Dry contact input 2
Own ship's position
mark