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PN-4407 (to be published as TIA/EIA TSB-110)

revision; parties to agreements based on this document are encouraged to investigate the possibility of applying the most recent editions of standards indicated. ANSI and TIA maintain registers of currently valid national standards published by them.

  • Residential Telecommunications Cabling Standard (SP-3490, to be published as


  • National Electrical Code (ANSI/NFPA-70);

  • National Electrical Safety Code (ANSI/IEEE C2);

  • Peripheral Component Interconnect (PCI) Local Bus Standard;

  • Personal Computer Memory Card International Association (PCMCIA) PC Card Standard;

    • 3.


    • 3.1


The generic definitions in this section have been formulated for use by the entire family of telecommunications infrastructure standards. As such, the definitions do not contain mandatory requirements.

Access line: a telecommunications circuit provided by the local service provider at the demarcation point.

Auxiliary disconnect outlet, telecommunications: a device usually located within the tenant or living unit used to terminate the ADO cable.

Backbone: A facility (e.g. pathway, cable or conductors) between telecommunications closets, or floor distribution terminals, the entrance facilities, and the equipment rooms within or between buildings.

Cable: An assembly of one or more conductors or optical fibers, within an enveloping sheath, constructed so as to permit use of the conductors singly, or in groups.

Cable run: A length of installed media which may include other components along its path. Connecting hardware: A device providing mechanical cable terminations.

Cross-connect: A facility enabling the termination of cable elements and their interconnection, and/or cross-connection, primarily by means of a patch cord or jumper.

Customer premises equipment (CPE): Telecommunications equipment located on the customer's premises.

Customer Premises Interface Unit: Element of the residential gateway system that provides for interconnection and interoperability with the technology of the in-house network.

Demarcation point: The point in the access line where ownership changes or responsibility and operational control for service access ends, and the customer's responsibility begins.

Distribution device: A device located within the dwelling unit for interconnection or cross connection of cables, e.g. outlet cable, equipment cable, distribution device cable/cord.

Enclosure: Assembly that houses the residential gateway system. End user: The owner or user of the telecommunications system.

Entrance bridge: A terminal strip that is an optional component in a network interface device and is provided for the connection of distribution wire.


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