ADTRAN 25 manual Glossary

GLOSSARY

Switch

The software-controlled communications processor complex that interprets dialing pulses/tones/keyboard characters and makes the proper interconnections both within the system and outside the system. The switch itself consists of a digital computer, software, storage device (memory), and associated circuit packs and special hardware necessary to perform the actual connections.

Switchhook

The button(s) on a voice terminal located under the receiver. A user typically goes “off-hook” to place or answer a call by picking up the receiver and goes “on-hook” (hangs up) to end a call.

The RS-232C DTE peripheral equipment used to enter and change system translations.

Synchronization

Coordinated timing whereby all switches, multiplexer operate from the same stable process assures that the transmit and the achieve proper bit alignment.

channel banks, and clock reference. The distant receive node

System Administrator

A person responsible for specifying and administering features and services for the system.

System R e s t o r e

A process that allows stored data to be written from a tape into the system memory (normally after a cold start).

T 1

The T1 carrier system is a high speed, time division multiplexed, digital transmission facility capable of transmitting voice and data at 1.544 Mbps. In System 25, T1 can replace up to 24 analog trunks, offering improved quality, cost savings, and enhanced features.

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