Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

We had a contractor wire up our office with all the cables leading back to a central location. The only problem is that he didn't label anything, so we have no idea which cables go to which room. One end of the cable is terminated in a wall-jack (in the rooms), the other end is un-terminated and will be punched to a patch panel. Is there a way to identify the cables without having to terminate them? We'd like to group the cables on the patch panel by room, but I don't want to crimp/punch each cable twice. Thanks!

share|improve this question
1  
Can you get a cable toner? –  jscott Nov 4 '13 at 20:13
    
I'd rather not have to buy anything, but I do have a multi-meter. Could we do something with a battery and a multi-meter or something? –  Jon Tackabury Nov 4 '13 at 20:32
add comment

2 Answers

up vote 8 down vote accepted

Get a tone generator (http://www.amazon.com/Fluke-Networks-PRO3000-Tone-Probe/dp/B000FTADX0/ref=sr_1_1?ie=UTF8&qid=1383596496&sr=8-1&keywords=tone+generator) and plug that into the terminated end and use the probe to find the cables on the other end.

And anytime a cable is pulled make sure the installer plans to label them cables in a manageable way (I've done site visits before even accepting a bid for work to make sure the installer does quality work)

share|improve this answer
    
Agreed. The scope of work should include labeling of both ends of the cable being installed. It should also include certifying the cabling. –  joeqwerty Nov 4 '13 at 20:26
    
I agree, and I missed this when arranging the installation. Let's just say that they did the minimum amount of work possible. –  Jon Tackabury Nov 4 '13 at 20:33
    
A tone generator is definitely the way to go. I'll have to grab one at Home Depot or something to finish this job correctly, thanks guys. –  Jon Tackabury Nov 4 '13 at 20:41
add comment

Instead of punching down the entire cable, just punch down one wire (of the 8 in the CAT6 cable), e.g. the orange one, then cut open a patch cable, plug it into one plug and then electrically test that connection (using testing leads, a 9V battery and a little lightbulb/buzzer.

share|improve this answer
2  
Hmmm. I think using a tone/probe would be a lot simpler and less intrusive. –  joeqwerty Nov 4 '13 at 20:30
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.