Excel Category 6 Unscreened cables are manufactured and tested to the TIA/EIA 568?B.2?1, EN50173?1 and ISO/ IEC 11801 Category 6 specifications. Each cable consists of 8 colour coded polyethylene insulated conductors. These are twisted together to form 4 pairs with varying lay lengths. These pairs are then formed around a central ‘X’ shaped polyethylene filler, which assists in maintaining and enhancing the cable performance.The print legend on the cable now includes information regarding the DOP number, Test and Classification of the cable for traceability.