Clever idea to trace a phone line fault?

[jtpryan]

For some reason I have lost 1 of my 2 phone lines on the second floor. This would be the yellow/black pair. If I am correct, the jacks on the second floor start with the one in my bedroom. Directly below this is my office, which works. I don't understand why this would happen, I have done nothing to the jack in my office, it has never been out of the wall. So, I want to test for continuity between these two points. I don't have a tone generator, and don't want to buy one just for this. I'm wondering if anybody has another idea short of running a long wire from upstairs to downstairs.

Thanks, Jim

[Red Cloud©]

You already have available long wires running right to where you need them. Just twist the ends together at one end and measure at the other. Disconnect the red/green pair and use those as the returns, since you know they are good. Mice often chew wiring inside walls. There are several other ways a wire could fail as well.

red

[SQLit]

Do you have a VOM to read continuity? I will bet on loose connections in the jack before the problem. If you do not have a meter and do not want to buy one then call a pro or run your cable.

[HeyBub]

Connect the yellow to the black upstairs.

Measure continunity between the yellow and the black downstairs.

[jtpryan]

Of course! Funny how the obvious escapes us (me)! Yes I do have a VOM.

Thanks all. Jim