Line concentrator

Details Line concentrator Line concentrator

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01) H04Q 3/545 (2006.01)

Patent

CA 1211195

ABSTRACT "LINE CONCENTRATOR" A concentrator for telecommunication lines uses a crosspoint matrix (100) incorporating semiconductor switches. A number of subscriber lines (1-14) are inputs to the matrix, and a smaller number of trunk lines are outputs. A subscriber loop detector is connected as a further input line and is connected successively to the input lines to scan them for a signalling loop. The detector and input lines are connected over a column of the matrix corresponding to a usable output line, and this column is varied. When all trunk lines are in use scanning ceases.

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