line switching concentrator

line switching concentrator

[′līn ¦swich·iŋ ′kän·sən‚trād·ər]
(communications)
Switching center used between a group of users and the switching center to reduce the number of trunks and increase efficiency of switching equipment usage (sometimes referred to as statistical multiplexing).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.