Cross connector box?

Hi. I have two phone lines in my house. I'm trying to change one jack from line A to line B. I've got it covered at the jack end. Originally, the red and green conductor wires were connected, so I just switched them over to yellow and black.

My problem is that at the other end in our basement, the yellow and black wires were never connected for this line (only the green and red). the basement box looks like this:

It's a 66B4-3 cross connect block.

I'm trying to figure out how this block works. Would I connect the yellow next to an existing yellow or above/below an existing yellow?

Thanks for any feedback!

Ken

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Posted 5 years ago by Ken in Telecom Technical

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