ocr: TOBASET WIRING CONFIGURATION RJ-45 connector Dransmil & Nransmit- - - Receive +1 Receive FIGURE 1: UIP cabling typically has four poirs of wire in one sheath, which conecis io an R45 modular jack. For OBosel, only the 1-2 pair and the 3-6 pair are - used. The 4-5 poir and the 7-8 pair gre wired, but noi used with Ethernet.