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Old 16 August 2017, 00:03   #1
Country: UK - England
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Garmin plotter - ACC

I have a Garmin 172C baby chart plotter. I'm tidying up my wiring & noticed it has a wire labelled 'ACC' Anyone know what it is? Here's some possibilities.

1. Permanent +ve input to help retain memory?
2. Permanent +ve input so that the voltage monitor isn't affected by the (albeit minimal) current drawn by the device. i.e. a 'sense' wire?
3. Switched output to enable downstream devices when turned on?

I went to the Garmin manual, which are always pretty good. It's got all the wires, except this one! I was surprised.
simonl is offline   Reply With Quote
Old 16 August 2017, 08:22   #2
Join Date: Jun 2010
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I believe it is to power up other devices when you turn your garmin on, I.e the vhf or another plotter that is connected to nmea
Xk59D is offline   Reply With Quote

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