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From: BRUCE@ccavax.camb.com (Barton F. Bruce)
Newsgroups: comp.dcom.telecom
Subject: Re: A Phone Set Wiring Question
Message-ID: <14707@accuvax.nwu.edu>
Date: 13 Nov 90 20:49:00 GMT
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In article <14566@accuvax.nwu.edu>, dwh@twg.com (Dave W. Hamaker) writes:

> I expected single-line phones would ignore the yellow-black pair,

> I was subsequently surprised to discover that one of my telephone
> sets ... would take both lines off hook when in use.  

Your set was probably wired for "A" lead control and the black and
yellow wires were expected to be connected to "A" and "A1" in a 1A2
key system to light the lamps and cut ringing and knock it off hold if
it had been help by a key phone.

Don't bother getting a two wire cord. The two terminals those wires
went to were probably just interconnections to two wires coming from
the hook-switch and have NO OTHER connections internally. Try
replacing them and move one of the two hook-switch wires OFF one of
your two terminals and onto the OTHER. This leave the H/S contact
doing nothing. There is NO path between your yellow and black, and no
floating wires.

Failing that, take the yellow and black wires off the terminals, and
fold an inch or so of tape onto itself (sticky to sticky) lengthwise
to sandwich each flapping spade lug individually.