On-premises wiring

On-premises wiring: Customer-owned metallic or optical-fiber[?] communications transmission lines, installed within or between buildings.

Note: On-premises wiring may consist of horizontal wiring, vertical wiring, and backbone wiring, and may extend from the external network interface to the user work station areas. It includes the total communications wiring to transport current or future data, voice, LAN, and image information.

Source: from Federal Standard 1037C