[comp.dcom.telecom] Going From Two Lines to One: Rewiring the Connection

cramer@uunet.uu.net> (04/12/90)

I used to have two phone lines into my house -- one for a business,
the other for personal use.  I have since dropped the business line,
but because I didn't want to pay Pacific Telephone an arm and a leg,
my business phone line (which terminates in my office) is now
inoperative, not connected to my personal phone number.  I would like
that phone jack on my personal phone number now.

When I look in the junction box, I can clearly identify the line going
from my business phone jack to the junction box.  I can also identify
the line going to the personal phone jacks.  There are four wires for
each, and it appears that at least two of the wires from the business
phone jack wiring are also going to the terminals of the personal
phone jacks.

Can someone provide a simple explanation of the connections involved
at the phone junction box?


Clayton E. Cramer {pyramid,pixar,tekbspa}!optilink!cramer
Disclaimer?  You must be kidding!  No company would hold opinions like mine!

john@bovine.ati.com (John Higdon) (04/13/90)

Clayton Cramer <optilink!cramer@uunet.uu.net> writes:

> Can someone provide a simple explanation of the connections involved
> at the phone junction box?

Only two wires are ever used for a telephone line ("tip" and "ring").
However, most station wire (the internal wire strung around the
premesis) has four conductors: red, green, yellow, black. Usually, the
red and green are used for an RJ11C jack. For expediancy, a second
line can be added to existing wiring by using the yellow and black
leads, and even the single jack can output two lines. When this is
done, the jack becomes a RJ14C.

It sounds as though someone has sent your personal line off on the
yellow/black leads of the wiring that was for your "business" line.
Simply put, if you can identify the two conductors bringing in your
personal line from telco and feed them to the red/green pair of all
your internal jack cables, your personal line should appear at all
existing jacks.


        John Higdon         |   P. O. Box 7648   |   +1 408 723 1395
    john@bovine.ati.com     | San Jose, CA 95150 |       M o o !