TMQ AP4 - NMEA Socket - Pin Configuration; GPS Data Input

TMQ AP4 Autopilot (AP4S10) 34 of 62 Version 4.96 9/10/2017
NMEA Socket - Pin Configuration
Pin 1 – GPS data positive input RX+
Pin 2 – GPS data negative input RX─
Pin 3 – TMQ data positive output TXD1
Pin 4 – Power negative 0 VDC
Pin 5 – TMQ data positive input RX2
Pin 6 – Power positive 10 VDC
GPS Data Input
The AP4 pilot will accept two forms of GPS data in NMEA 0183 format as
follows:
 GPS Plotter data – APA, APB or XTE+BOD for waypoint steering –
pilot display shows BTW
 GPS data as heading reference – used when magnetic heading reference
from a compass is not available – pilot display shows COG *
*DIP1 switch 2 must be switched to COG to receive data for COG. Boat must
be making more than 2 knots true speed over ground. Refer diagram on
page 29.
GPS Data Input Connection
Refer to GPS manual for correct identification of wires for data output
connection. An example of GPS connection:
 GPS TX+ connect to AP4 RX+ (pin 1 of the NMEA Socket)
 GPS TX– connect to AP4 RX– (pin 2 of the NMEA Socket)
TMQ C-Plot Data Input Connection
The AP4 will accept data from a computer operating a C-Plot program for
waypoint steering. The connections are as follows: