On Friday, September 8, 2017 at 4:01:04 PM UTC-4, Ralph Mowery wrote:
In article ,
says...

I bought a phone jack with four terminals labeled "G" (green), "R" (red), "Y" (yellow), and "B" (black).

However, none of the wires in the telephone cable in the wall have those colors.

See the photo at:

http://i1201.photobucket.com/albums/...pskzoysgzj.jpg

Which wire do I attach to each terminal in the phone jack?

Thanks in advance.



Your link is not working.

A telephone in the US usually onlyuses 2 wires eventhough there may be 3
or most often 4 wires in the cable.

The phone will have voltage of around 15 or so volts DC on it at very
low current (probably not enough to hardly see a spark if shorted) when
not ringing. When it rings it will have aroud 90 volts pulsing with
each ring. Not much danger if no incomming call,and even if you do get
a call the voltage will not be that dangerouse,but will sure make you
hurt yourslef when you jump back .

If you have a volt meter, see which wires have from 10 to 20 volts DC
on them. Those will be the ones to hook to the red and green wires of
the phone jack. If no vom, just hook up one wire to the red jack post
and touch each of the other 3 wires to it. If you get a dial tone, you
are good to go with those 2 wires. If no dial tone, take that wire off
and connect one of the 3 remaining wires to the red post. Then try the
other 2 one the other post. If no dial tone, that shuld just leave you
the last 2 wires to connect to the red and green post. Most times it
will not matter which wire is green and red, but sometimes it may
depending on the phone. So you may have to repeat the above using the
green jack post.

Or go look at another working jack on the line and see which two
colors it's using. Assuming the new jack is to be shared on that line,
those are your colors. It's it's a jack on a new additional line,
then you can rule out the two on the existing jack.