Tripp Lite T1 Shielded RJ48C Patch Cable (RJ45 M/M), 10-ft. (N265-010) ANSI certified T1 cable, Levels 1, 1A, and 1C Complies with ANSI T1.403 Carrier-to-Customer Installation-DS1 Metallic Interface Straight through T1 wiring configuration Available in 3ft, 5ft, 7ft, and 10ft stocked lengths Custom length cables available NEC (UL) Type CMR Available in Crossover wiring configurations 22AWG Solid Tinned Copper