Operation Manual

Installation | 13
A SimNet cable is supplied with the autopilot computer. It
has a connector only at the control unit end. The other
end is prepared for screw terminals.
AC12 Board Terminals
AC42 Board Terminals
White cable may be yellow on old SimNet cable versions!
Polarity protection
The fuse located in the lower left corner of the AC board
is not put in its final position when supplied from factory.
When the motor supply is connected to the terminal, a
diode will light. If the light is red, you have to swap the
wires. When the light is green, the polarity is correct.
Switch off the supply voltage and put the fuse into
correct position.
Radio Frequency Interference (RFI)
The autopilot system has excellent RFI protection as per
EMC Directive 2004/108/EC.
SimNet cables and other signal cables (feedback, NMEA)
should not be run in parallel with other cables carrying RF
or high current, such as VHF and SSB transmitters,
battery chargers/ generators, winches and thrusters.
If problems occur with RFI, make provisions to connect
the supply cable shield to the fast-on ground terminal.
This terminal must also be connected to the hull bonding.