TELECOM Digest OnLine - Sorted: Re: Wiring Two Lines on One Jack

Re: Wiring Two Lines on One Jack
Fri, 11 Mar 2005 06:21:25 -0500 wrote:

> Hi,

> I would like to wire one jack for two lines. Here is the setup of the
> wires after opening the jack.

> The red screw terminal has two blue and 1 orange wires connected to
> it. The green screw terminal has 2 white/blue and 1 white/orange wire
> connected to it. I'm just curious as to why there are 3 wires
> connected per terminal.

> The yellow an black screw terminals are not connected to any
> wires. Now what should I do to be able to access a second line?

> Thank you!

> [TELECOM Digest Editor's Note: Red/green is traditionally one pair;
> and yellow/black is traditionally the second pair. You want to use
> the unused yellow/black screw terminals for your second line. Can
> you tell us more about the _type of phone instrument_ currently in
> use on your (I presume) working single line? With no other knowledge
> it is difficult to answer your question; was this/is this part of
> a business phone arrangment? Does the pair which is 'wired' at
> present go to a working instrument? PAT]

As Pat says red-green and black-yellow are what you care about. You
(actually the telco does this when you sign up) would normally add the
extra line to the yellow-black at the box where the phone enters the
premises. The extra wires sound like they go to extra phones. If that
box (with extra wires) is outside the premises you might want to ask the
telco or the cops unless those wires clearly go to extra phones or devices
you know about.

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