Simrad AUTOPILOT SYSTEM AP50 - Manual (Page 107)

Installation
20221032B
105
4.20 Interfacing to Optional Equipment (THD,
Navigation Receiver, etc.)
With the AP50 autopilot system, there are several options for
connection to other equipment for data exchange:
1. The J50 Junction Unit includes two NMEA input/output ports
and a Clock Data heading interface to Simrad and Furuno
radars. Only the J50-2 port (NMEA input 2) accepts NMEA
heading sentences.
2. The optional NI300X NMEA Interface (expansion) Unit
includes 4 additional NMEA input/output ports.
The following connecting diagrams illustrate the interfacing
possibilities.
Note ! See also “Interface Set-up” page 126 and the NMEA sentence
table page 68.
Single NMEA input/output
RX
1 RX
1+
MAIN PCB
NMEA Input 1
Vb
a
t+
S
ys.
se
l.
Gn
d
TX
1 TX
1
+
NMEA
Output1
NMEA listener
NAV RECEIVER
OR PLOTTER
(NMEA talker)
JUNCTION UNIT
RUDDER instr.
COMPASS instr.
RADAR
TB13 TB14
Figure 4-33 Single NMEA Connection