Simrad AP21 - Double NMEA Input;Output; Additional NMEA Output on Port 2; NMEA Compass in

Installation
20220596G 75
4.20 Double NMEA input/output
RX1
RX1+
MAIN PCB
DATABOX (NMEA Input)
Vbat+
Spare Gnd
Red Wh
Bn
Gn Blk
TX1 TX1+
NMEA
Output
POWER PCB
TB8
TB9
TB10
RX2 RX2+
GPS
(OR PLOTTER)
NMEA
Input2
TX2
TX2+
NMEA
Output2
LORAN C
(OR PLOTTER)
J300X / J300X-40 JUNCTION UNIT
Figure 4-19 Double NMEA connection
4.21 Additional NMEA output on Port 2
(Applies for AP21&AP22 V1R3/J300X V1R8 onwards)
Output signal Output terminal Output sentence
Continuous output of compass
heading on 10 Hz (10x/sec.)
NMEA format
Junction unit, Power PCB,
NMEA2, TX2+, TX2–
HDT (True) or HDG (Magn.)
depending on heading source.
4.22 NMEA Compass in
(Applies for AP20 V1R3/J300X V1R8 onwards)
POWER PCB
TB8
TB9 TB10
RX2
RX2+
NMEA
Input2
J300X / J300X-40 JUNCTION UNIT
NMEA
COMPASS
Figure 4-20 NMEA compass connection