gary21sn(at)hotmail.com
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 Posted: Sat Jul 01, 2006 5:58 am Post subject: Is there a color code convention for intercom wiring |
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<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> > > I had planned to use one color style to wire the microphone jacks and the
> > other color style to wire the headphone jacks. I feel that this
> will aid in
> > avoiding confusion for future troubleshooting.
> > Charlie Kuss
>==========================
>Charlie:
>
>The colors are your choice.
>But, the Mic cable should have 3 wires and a shield and the Phone cable
>should have 2 wires and a shield. Kind of hard to mix that up.
>
>Barry
>"Chop'd Liver"
Barry,
For a mono intercom, you are correct. However, I clearly stated
that this is a STEREO intercom. (You snipped this part of my original
post out of your reply) . The headphone jacks also have 3 wires.
(Pilot & Co-Pilot mics have 3 wires. Passenger mics have 2 wires) I
like Rick Lindstrom's idea of using the "Red is Right" rule. This is
a common convention with home and car stereo equipment.
Blue is closer to Black (normal ground color) than yellow or red,
so that seems like a good color for ground. Yellow, being odd man
out, gets to be the left channel.
I'll use this color coding unless someone knows of a definitive
aviation convention.
Charlie Kuss
Charlie,
An aviation A&P, A&I related to me a line to remember when wiring jacks and plugs, which I utilized when wiring my Lancair and several RV's is:
White, Right, Ring
Obviously white is the wire color; right is the right channel for copilot or stereo or earcup or whatever; ring if which terminal on the jack or plug.
Gary Edwards
LNC2
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