First of all I would like to say how GREAT it is to have a site like this one. I work for a VERY large telecom and it almost a disgrace the lack of training they offer for such a highly technical job. My question is this: In a Central Office, On a 4 wire circuit you have T,R,T1 and R1. These have been explained to me as tip, ring, tip1 and ring1, but are they really transmit, receive, transmit1 and receive1? I know that if you are wiring up equipment to equipment ( channel bank to channel bank)you have to roll the jumpers. Otherwise you have xmit to xmit and recv to recv. Any information would be greatly appreciated.
