Labels:text | screenshot | font | line | rectangle | parallel OCR: 10BASET WIRING CONFIGURATION RJ-45 connector 2 ftransmit -) 3 (Recaiva +) 6 (Receive ) FIGURE 1: UIP cabling typically has four pairs of wire in one sheath, which connects to an RJ-45 modular jack. For 10BaseT, only the 1-2 pair and the 3-6 pair are used. The 4-5 pair and the 7.8 pair are wired, but not used with Ethernet.