Robertson AP21 and AP22 Autopilots
74 20220596E
4.19 Interfacing
With the autopilot system there are several possibilities to
connect to other equipment for data exchange:
1. J3000X includes a single NMEA input/output port.
2. J300X includes two NMEA input/output ports and Clock Data
interface to Anritsu and Furuno radars.
3. The optional NI300X NMEA Interface (expansion) Unit with
4 additional NMEA input/output ports.
A further interface expansion is to connect to the Robertson
Databox to provide interface to IS11 sensors, Chart plotter and
GPS Receiver.
The NMEA output may also drive IS11 RUDDER and
COMPASS instruments directly.
The different connecting diagrams below illustrate the interface
possibilities.
4.20 Single NMEA input/output
RX1
RX1+
MAIN PCB
DATABOX (NMEA Input)
Vbat+
Spare
Gnd
Red Wh
Bn
Gn Blk
TX1
TX1+
NMEA
Output
NMEA listener
NAV RECEIVER
OR PLOTTER
(NMEA talker)
JUNCTION UNIT
RUDDER instr.
COMPASS instr.
RADAR
Figure 4-19 Single NMEA connection
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