BETA-32 wrote:
I should probably know this, but....

I have one 4-wire phone line running from the main incoming phone connection
box to a standard phone jack. I want to add a second phone jack next to the
existing one for a second phone line, and I don't want to run a new wire.

So, here's what I am assuming:

1) Inside the existing phone jack, leave the red and green wires from phone
line connected to the red and green connectors inside the phone jack.

2) Then take the black and yellow wires from the phone line and connect them
to the red and green connectors inside the second phone jack for the second
phone line.

I know what to do with the wires on the other end (at the incoming phone
connection box).

But, is number 2 above correct?

If so, when matching the yellow and black wires to the red and green
connectors inside the phone jack, is it better or correct to connect the
yellow wire to the red terminal and the black wire to the green terminal?

Or should it be yellow to green and black to red?

Thanks.




The yellow corresponds to the red and the black to the green.

Most modern phones don't care about the polarity of the line but some
old touch tone phones won't dial if they are wired "backwards".

HTH,

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.