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Twisted-Pair PCords and Cross-Connect Jumpers

  • Patch cords should use stranded cable for adequate flex-life.
  • Stranded cables must meet the minimum performance requirements for horizontal cable except that 20 percent more attenuation for UTP is allowed by '568-B.2 and 50 percent more attenuation is allowed by '11801:2002 for UTP and F/UTP.
  • Color-code for cross-connect jumpers: One conductor white, the other a visibly distinct color such as red or blue.
  • Performance markings should be provided to show the applicable transmission category in addition to safety markings.
  • Insulated O.D. of stranded wires should be 0.8mm (0.032 in.) to 1mm (0.039 in.) to fit into a modular plug.
  • Production performance specifications for plug cord assemblies are addressed in '568-B.2.
  • Color Codes for Stranded, 100Ω Patch Cord
Option 1   Option 2
white/blue - blue pair 1 green - red
white/orange - orange pair 2 black - yellow
white/green - green pair 3 blue - orange
white/brown - brown pair 4 brown - slate

Note:
Because of their identical pair groupings, patch cords terminated with either T568A or T568B pair assignments may be used interchangeably, provided that both ends are terminated with the same pin/pair scheme.