STRAIGHT THROUGH CABLES: Pinout Color Pin 1 (TD+)-----White/orange Pin 2 (TD-)-----Orange Pin 3 (RD+)-----white/green Pin 4 ----------blue Pin 5 ----------white/blue Pin 6 (RD-)-----Green Pin 7 ----------white/brown Pin 8 ----------brown CROSSOVER CABLES Pinout Color Pin 1 (TD+)----white/orange---Pin 3 (RD+) Pin 2 (TD-)----orange---------Pin 6 (RD-) Pin 3 (RD+)----white/green----Pin 1 (TD+) Pin 4 ---------blue-----------Pin 4 Pin 5 ---------white/blue-----Pin 5 Pin 6 (RD-)----green----------Pin 2 (TD-) Pin 7 ---------white/brown----Pin 7 Pin 8 ---------brown----------Pin 8 Cable Specifications: 100 OHM Maximum Segment Distance == 100 meters