I have a Cat 5 ethernet cable that runs from a stereo cabinet to an equipment closet. A couple dozen other identical cables run from other parts of the house to the same hole in my drywall in this closet. They’re not all well labeled. Originally, the cable in the stereo cabinet served as a telephone connection, with a 4P4C jack in the cabinet and the other end punched down into a 66 Block in the closet (question edited to show 66 Block photo).
Now, I want to re-purpose that Cat 5 cable to serve as an Internet connection to the cabinet. I have already re-terminated the cabinet end with an 8P8C Ethernet jack, and I want to find the other end of this cable in the closet so I can connect it to our data network.
If the cable from the stereo cabinet weren’t punched into the 66 Block, I think it would be easy enough to find it, using an answer like “How can I find out which ethernet cable goes where?”. But if I were to use a Tone Generator and Probe, then I would expect for every cable in the house that serves our phone system (all of which are the same gray Cat 5, and all of which are tied together in that 66 Block) to probe positive exactly like the one cable I’m trying to find. Right?
Because of this, the only way I can think of to find this cable is to start pulling wire off my 66 Block. However, I don’t want to do this unless it really is necessary, because I’m fearful that I’ll mess up our home phone system in a way I won’t be able to repair. (One problem I foresee is that I don’t have a lot of extra cable length to work with for punching wires back down.)
How can I figure out which of the many Cat 5 cables that are punched down into the 66 Block in my closet is the one coming from my stereo cabinet?