Garmin GPS 100 - Manual (Page 88)

14.2 ELECTRICAL WIRING
The GPS 100 power/data cable allows you to connect the unit to vehicle
power systems, other marine electronics, and a remote alarm/beeper. The
harness will plug into the connector located at the left rear corner of the GPS
100.
To connect to vehicle power systems...
· Connect the RED harness lead (with fuse) to the positive (+) side of
a 12 or 24 volt DC power source.
· Connect the BLACK harness lead to the negative (-) side of the 12 or
24 volt DC power source.
You may also power your GPS 100 using a 12 or 24 volt automobile type
cigarette lighter by connecting a lighter adapter to the power/data cable.
To connect lighter adapter...
· Connect the RED harness lead to the positive (+) adapter lead.
· Connect the BLACK harness lead to the negative (-) adapter lead.
The GPS 100 will drive a remote alarm or relay that requires no more than
100 milliamps of current. (WARNING: Devices which draw current in excess
of 100 milliamperes may damage your unit and will void your warranty.
Consult the instructions included with the remote alarm or relay for current
drain information.)
14-3