Lowrance AirMap 100, GlobalMap 100, GlobalNav 12, GlobalNav 200, GlobalNav 212

pinout

6 pin Lowrance (round) special connector  at the GPS

Pin Name Description 1 VCC Power 2 RX RS-232 (receive serial) 3 GND Ground 4 TX NMEA/Pseudo RS-232 (transmit serial) 5 - DO NOT USE (recharging purposes) 6 - DO NOT USE (recharging purposes)

Source:www.pinouts.ru