Also known as Cabling Subsystem 1.

The horizontal cabling system extends from the work area’s telecommunication outlet to the telecommunication room or telecommunications enclosure. It includes horizontal cable, mechanical terminations, jumpers and patch cords located in the TR or TE and may incorporate multiuser telecommunications outlet assemblies (MUTOAs) and consolidation points (CPs). The maximum horizontal cable length shall be 90 m (295 ft.), independent of media type. If a MUTOA is deployed, the maximum horizontal balanced twisted-pair copper cablelength shall be reduced.