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1. (WO2001033823) SUBSCRIBER LINE TEST SYSTEM

Pub. No.:    WO/2001/033823    International Application No.:    PCT/IB2000/001550
Publication Date: Fri May 11 01:59:59 CEST 2001 International Filing Date: Fri Oct 27 01:59:59 CEST 2000
IPC: H04B 3/48
H04M 3/22
H04M 3/30
Applicants: SPESCOM LIMITED
HARRISON, Ian
CHESTER, Steven, John
CRONE, Vivian, John
DU RAND, Andre
FOUCHE, Pierre, Ivor
WEISS, Martin
Inventors: HARRISON, Ian
CHESTER, Steven, John
CRONE, Vivian, John
DU RAND, Andre
FOUCHE, Pierre, Ivor
WEISS, Martin
Title: SUBSCRIBER LINE TEST SYSTEM
Abstract:
A system for testing a telecommunication line is provided. The system includes acentral unit, at least one remote unit and threshold detection means. The central unit (16) includes signal generation means (20) capable of generating a test signal (26) of increasing amplitude or frequency and is operatively connected to an exchange end of the line. The central unit further includes comparator means connected to the signal generation means. The remote unit is connected in use to a subscriber unit end of the line and is operable under control of the central unit selectively to disconnect the subscriber unit. The threshold detection means (38) detects when the test signal reaches a predetermined threshold and, in response thereto, the comparator means compares the predetermined threshold with the amplitude of the test signal applied to the line when the predetermined threshold is reached. From the comparison line attenuation may be determined.