I was crimping my RJ31X jacks wrong for a solid two years.

I always thought the wire order just had to be neat and the crimp tight. Then I had a job in a big office building where the phone system kept dropping the alarm dialer signal. After three callbacks, the phone tech showed me his tester. The dialer needed a specific pinout on the jack to work right with the phone lines, not just any clean crimp. I had been making them all the same way for every install. Now I check the manual for the specific panel and phone setup every single time. Has anyone else had a phone line issue that turned out to be a simple wiring order mistake?

2 comments

2 Comments

grant_hart2d ago

Yeah, I've been there. Now I just keep a laminated pinout chart in my tool bag.

ruby4502d ago

My buddy laminated one for me after I mixed up the CAN bus pins. That thing has saved my weekend three times already.