Raymarine E90W, Installation Instructions Manual

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High alarm loads and third party alarms
You can use the alarm output to switch a relay. This may be useful
for connecting high loads such as third party alarm sounders or
inductive loads to the display. If you are in any doubt as to how to
make such connections please consult an authorized installer.
The E-Series Widescreen multifunction display has a positive
switched alarm output. The following circuit shows the arrangement
for connection of a relay switch.
Alarm output configured to switch a relay
High current load
Battery +
Battery --
0v return
Relay
Suppression
diode
Alarm out
(+ve)
D1
1
591-1
Note: When connecting the output to a relay or other inductive
device you should fit a spike suppression diode e.g. 1N4001.
3.8 GPS connection
Depending upon your GPS type it may be either connected via
SeaTalk or NMEA 0183.
See also
• For SeaTalk connection refer to: 3.6 SeaTalk connection .
• For NMEA 0183 connection refer to: 3.5 NMEA 0183 connection .
Cables and connections 37