Lucent Technologies 8.2 User Manual

Issue 1

April 2000

Glossary and abbreviations 

1631

 

The use of redundant components to improve availability. When a duplicated subsystem fails, its backup 
redundant system automatically takes over.

A system option that duplicates the following: control carrier containing the SPE, EI circuit packs in carriers, 
fiber-optic cabling between port networks, and center-stage switch in a CSS-connected system.

DEFINITY Wireless Business System

Direct extension selection

A digital transmission standard that carries traffic at 2.048 Mbps. The E1 facility is divided into 32 channels 
(DS0s) of 64 kbps information. Channel 0 is reserved for framing and synchronization information. A 
D-channel occupies channel 16.

Ear and mouth (receive and transmit)

Expansion archangel

Expansion archangel link

Trunk supervisory signaling, used between two communications systems, whereby signaling information is 
transferred through 2-state voltage conditions (on the E and M leads) for analog applications and through a 
single bit for digital applications.

See "Expert Agent Selection".

Error Correct Code

European Computer Manufacturers Association

Extended Binary-Coded Decimal Interexchange Code

Electronic power feed

Expansion interface

Electronic Industries Association