I have been around the "normal" network cabling world and POTS stuff, but this is my first T1 job. I am going to bring up T1 service from the Demarc to a Cisco router. I am worried that the LEC hasn't put in RF45 jacks at the Demarc for me to plug into(then run a cable to the router) All that being said, if I have to install my own jack which lines will go under which screw terminal at the demarc? I know there are four wires, but what pairs are going to what terminal. Hope I havent confused anyone too much.

Thanks in advance,

Travis