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Wiring | AP70/AP80 Installation Manual
External I/O
Handshake
Connects to: SD80 board (in SD80, AC80S or AC85 Computer) or AD80 board (in AD80,
AC80S or AC85 Computer).
The SD80 and AD80 boards have two identical galvanic isolated handshake digital I/O ports
that can be sw configured for various applications like interface to steering gear control,
hand steering override, watch alarm, direct i/o type central alarm panel, pulse log input and
pendulum ferry function.
+
-
Max
100 mA
AD80/SD80 BOARDEXTERNAL
INTERFACE
OUT A
OUT B
IN +
RET
HS..
HS..
AD80/SD80,
AC80S or AC85
Computer
5 mA
OUT A
OUT B
IN +
RET
The LED is green when handshake output is on.
¼ Note: The Handshake must be defined as described in “Dockside - Drive system” on page
46.
Central alarm panel with direct I/O interface
Connects to: AP70/AP80 Control unit, and AD80 board or SD80 board.
The interfacing described below applies for central alarm panels that use direct lines for
alarm, mute and acknowledge. For alarm panel using serial interface, refer to “IEC61162-1/2
(NMEA 0183) devices” on page 26.
The autopilot system will have two cable connections to a Central Alarm panel;
• one from the autopilot control unit
• one from the autopilot computer
From the autopilot control unit we are using the same two wires (red and blue) as for external
alarm relay connection.
Under normal operation you will see 12/24 V between these two wires. In an alarm situation,
or when power is lost, you will see no voltage.
From the autopilot computer we are using the handshake connection on the SD80 or AD80
board for alarm mute and acknowledge.
HS1
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