Operation Manual

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Wiring | AP70/AP80 Installation Manual
Wiring
Wiring guidelines
CAN network cables and other signal cables (i.e. compass, feedback, NMEA) should not be
run in parallel with other cables carrying radio frequency or high current, such as VHF and SSB
transmitters, battery chargers/generators, and winches.
Don’t make sharp bends in the cables, and avoid running cables in a way that allows water to
flow down into the connectors. If required, make drip and service loops.
If cables are shortened, lengthened or re-terminated, do insulate and protect all wiring
connections.
Most of the units are communicating on the CAN bus with drop cables. Try mounting the
units within the standard cable length supplied with each unit. Additional cables and cable
extensions are available from our distributors.
!
Warning: Before starting the installation, be sure to turn electrical power off. If power
is left on or turned on during the installation, fire, electrical shock, or other serious injury
may occur. Be sure that the voltage of the power supply is compatible with the spec for the
units!
The autopilot system, basic wiring principles
The AP70 and AP80 autopilot system use a CAN bus backbone which makes it simple to
interface to SimNet and NMEA 2000 devices.
NMEA 0183 devices, rudder feedbacks and other control devices connects to an autopilot
computer.
In a standard system the CAN bus is powered by the AC80A, AC80S, SI80 or AC85 Autopilot
computer. The AP70/AP80 control units have separate power supply. Other SimNet/NMEA
devices are powered by the CAN bus.
The following sections describe installation of the components listed in the illustration below.
Refer to separate manuals for detailed information about each interfacing unit.

NMEA0183/
IEC 61162-1/
IEC 61162-2
SIMNET/NMEA2000 REMOTES STEERING LEVERS CONTROL HEADS
CAN BUS
COMPUTER
RUDDER
FEEDBACK
POWER
POWER
DRIVE
SYSTEM
SIMRAD
S35
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