4-Way Light Switches

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glene77is

Senior Member
Location
Memphis, TN
Enough already ?

Enough already ?

000 ON
001 OFF
011 ON
010 OFF
110 ON
111 OFF
101 ON
100 OFF

Have not seen a boolean / truth table since 1985,
last time I graduated.
Well, I guess they are part of the PLC designs,
just don't look the same.

In a jam, I have wired whole circuits with 4-ways,
only mistake was to make connections side-to-side :happyno:

You could carry a neutral in the cable,
then energize a lite at every-other switch,
alternating the lighting scheme down the long hallway.
Seems silly. :lol:

Today, I get to check beeping signals from a UPS on a telephone system.
Better get going.
Hope it is an arcing OCPD, or loose connection,
anything worth fixing.
 
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