TEST SYSTEM FOR SUBSCRIBER CIRCUIT

摘要

PURPOSE:To save the trouble for the retrial from the tester to the test board in case the test result is faulty in the subscriber circuit test, by securing an automatic announcement for the faulty test result and at the same time giving a connection to the test board. CONSTITUTION:The tester calls out the circuit test unit from the subscriber telephone set to be tested via dial 114, thus enabling the test for the subscriber circuit. The test result is announced immediately in voice. In case the test result is faulty, the announcement is given for the faulty result. At the same time, the timing relay circuit operates to close the contact nearly at the time the anneouncement is over and then to give a connection to the test board where the test operator is. The test operator talks to the tester to carry out subsequently the necessary circuit test. Also the test can be discontinued if the tester puts the telephone receiver at the announcement time of the faulty test result.