CUSTOMER LINE TESTER

摘要

Apparatus is disclosed for testing a telephone line between a customer's network termination equipment and an exchange associated therewith. The apparatus comprises a field unit (5) positionable between the customer's telephone (1) and the network termination equipment (4), and an exchange unit (16) positionable at the exchange (2). The exchange unit (6) comprises activating means (16) for initiating a test sequence, and processing means (14) for controlling testing and analysing test results. The field unit (5) comprises a noise generator (12) for sending noise signals to the exchange unit (6), and a sensor (10) for activating the noise generator upon receipt of the activating signal. The processing means (14) analyses the incoming noise signal to provide a measure of the line attenuation.