Chapter 1: System Connections
11
•
Computer AND instrument power supplies ON:
The system will function normally.
•
Only computer power supply ON:
The controller and instruments do not power up.
•
Only instrument power supply ON:
The controller shows a PILOT OFF or NO LINK message.
Connecting SeaTalk or NMEA compasses
You can connect SeaTalk or NMEA compasses to the SmartPilot computer, either
to replace the fluxgate compass or provide supplementary compass signals.
When you connect more than one compass to the autopilot system, the computer
processes their signals in this order of priority:
1. Fluxgate compass
2. NMEA compass
3. SeaTalk compass
This means that if you want to use a NMEA compass as the primary compass, you
need to disconnect the fluxgate compass.
To connect a SeaTalk or NMEA compass to the autopilot system:
•
NMEA compass
: connect it to a NMEA input on the computer
•
SeaTalk compass
: connect it to the SeaTalk bus or the SeaTalk terminals
D6302-2
SmartPilot
controller
SeaTalk instruments
SeaTalk bus
Computer
power supply
(via breaker/fuse)
SmartPilot
computer
SeaTalk
SeaTalk
Screen
Do not connect Red wire
(Cut back and insulate)
Yellow
Instrument SeaTalk
bus 12 V power supply
(via breaker/fuse
rated at 5 A or less)
Separate SmartPilot computer and instrument power supplies
81273_1.book Page 11 Thursday, November 10, 2005 8:25 AM