Switchboard

Switchboard

Industry: Telecommunications

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Handset cord

Telecommunications; Switchboard

The electrical cord connecting the “handset” to the base of the telephone.

Hub

Telecommunications; Switchboard

A programmable device in a building to which coax and 10base-T connexions are attached. The hub is capable of recognising which jacks ethernet addresses use to talk to the campus network.

Hunt group

Telecommunications; Switchboard

A group of phones that ring in a programmed sequence when a number that is already in use within that group is dialed.

Jack

Telecommunications; Switchboard

A type of electrical outlet, usually mounted on a wall, into which the “mounting” cord of a telephone set and/or computer is plugged.

Key system

Telecommunications; Switchboard

A very small switching system which uses multi-line telephones to provide a “pool” of lines for incoming and outgoing calls.

Key telephone:

Telecommunications; Switchboard

A telephone set with buttons that can select several incoming lines. Key telephones do not require a prime number as do single line non-key telephones.

Line:

Telecommunications; Switchboard

On most telephone systems, this generically equates to an “extension”. However, it actually refers to a physical connexion to a telephone by a pair of wires.