It's not a switch. It's a power jack.
Typically...
Pin 1 (tip) = positive (from a power supply and to the device)
Pin 2 and 3 would be closed (if nothing is plugged into the jack).
- Like using batteries on the device
Batteries.
Pin 3 would be batteries. So pin 2 is connected to your device.
Using a power supply (plugged into the jack) would disconnect pin 3
(batteries) from the circuit, so power flows from your power supply directly
through pin 2 to your device.
Michail
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In a message dated 7/16/2010 9:03:24 P.M. Pacific Daylight Time,
msilv3r@... writes:
Can someone explain how you would wire this up? I don't quite get it. It's
a NC switch and input 3 appears to be the pin that controls if its open. I
don't get how I would wire it. Thanks.
datasheet: _
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