ADTRAN 25 manual Glossary

GLOSSARY

Terminal Equipment

Equipment used to change information (sound, keystrokes) into an electrical signal compatible with System 25’s port circuits. (Voice and data terminals are the two primary types.)

Tie Trunk

A telecommunications channel that directly connects two private switching systems.

Time-Division Multiplex Bus

A special bus that is time-shared by preallocating short time slots to each transmitter on a regular basis. In a PBX, all port circuits are connected to the time-division multiplex bus, permitting any port to

send a signal to any other port.

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Tone Ringer

A device with a speaker, used in electronic voice terminals to alert the user.

Translations

Specific information assigned to a terminal or to the system and customized for the user. Translations are entered and changed through the SAT.

T r u n k

A telecommunications channel between two switching systems.

Trunk Access Equipment (TAE)

The cross-connect field for central office (CO)/network facilities.

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