Onwa Marine Electronics KAP-866 - Manual (Page 34)

Data In
For GPS navigation or heading information, Connect the data output and data
output and data return wires of external device to the IN+ and IN- of KAP-866
GPS connector. Onwa KGN100 or KGN200 is supplied as an option to convert
the analog signa l (sychro or stepper) of gyrocompass onboard to NMEA0183
data as heading source to KAP-866.
Digital heading source
GPS device
3.7 External Alarm Installation
An external buzzer may be connected to the ALA + and ALA - of KAP-866
Alarm connector
The ALA- output will be 10 volts when the alarm is not sounding (with alarm
connected), and approximately 0 volts when active. We recommends a 12-volt
piezo buzzer with maximum current draw not exceeding 250 milliamps be
connected to this output.
If a larger type siren or alarm unit, which draws in excess of 250 milliamps is
used, this must be connected via a relay. The KAP-866 external alarm circuit
is used to energise the relay coil and power to the siren or alarm unit is conn-
ected via the relay contacts.
.
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AUTOPILOT
COMPASS REMOTE RUDDER MOTOR
ALA/RUDM NMEA I/O POWER IN