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Simrad AP26 and AP27 Autopilots
76 20221586B
3.22 NMEA output on Port 2
Output signal Output terminal Output sentence
Continuous output of compass
heading at 10 Hz (10x/sec.)
Rudder angle output at 5 Hz
NMEA format
Autopilot Computer Power
PCB.
NMEA2, TX2+, TX2–
HDT (True) or HDG (Magn.)
depending on heading source.
RSA Rudder angle
3.23 NMEA Compass input
POWER PCB
TB8
TB9
TB10
RX2
RX2+
NMEA
Input2
AC20/AC40 AUTOPILOT COMPUTER
NMEA
COMPASS
Figure 3-24 NMEA compass connection
Note ! The compass connected to the NMEA In port (RX2) will not be
calibrated.