RJ stands for Registered Jack, part of the Universal Service Ordering Code system developed by Bell Systems and adopted in part by the FCC. The Registered Jack wiring configurations allow communication between the consum... More » Business & Finance Careers

An RJ11 to RJ45 converter converts a telephone socket into a networking socket. An RJ11 is the socket used to plug in telephones, and an RJ45 socket and jack is for computer networking. More » Home & Garden Home Maintenance Electrical

The difference between an RJ11 and an RJ12 cable is based on the number of wires used within the cable and how the wires are arranged. RJ11 includes four wires, and two slots are not used. RJ12 uses wires in all six avai... More » Technology Computers & Hardware
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