T

See: Tera

T

See: Tesla

T Carrier

See: Trunk Carrier

T Coupler

A signal coupler that has three ports.

T-1

See: T1 Carrier

T1 Carrier (T-1)

A North American and Japanese digital primary rate telephone multiplexing system that combines 24 channels of digitally coded speech or other subscriber data, at 64 kb/s for each such channel, with an 8 kb/s synchronization bit stream (the framing bits or F bits) into a 1.544 Mb/s bit stream. T-1 was historically a trade name of one manufacturer, although it is now often used for compatible products regardless of manufacturer. The synonym DS-1 is often used in standards and other documents.

TA

Terminal Adapter

TA

Transaction Capabilities

TACS

See: Total Access Communications System

TADIG

See: Transferred Account Data

Interchange Group

TAF

Terminal Adaptation Function

Talk Around

The ability of a mobile radio (typically LMR) to directly communicate with another mobile radio without the need to communicate with a network.

Talk Time

The amount of time a mobile telephone or transmitting device can continuously transmit between battery recharges or the replacement of its disposable batteries.

Tandem

(1 - general) The connection of the output terminals of one network, circuit, or link directly to the input terminals of another. (2-message network) A switching system that establishes trunk-trunk connections but has no subscriber lines connected to it. Tandem types include local tandems, LATA tandems, and access tandems.

Tandem Free Operation (TFO)

Tandem free operation involves the direct connection of switching...