| 摘要 |
PURPOSE:To realize the efficient jumper check for the subscribers by one person without using any test board but with utilization of the interruption train of the using exchange. CONSTITUTION:When the loop state is secured for the subscriber terminal at the intra-office side of arrester 6 at the side of electronic exchange 21, the dial-tone state is secured through the program process of exchange 21. Then subscriber data 26 is read out through magnetic drum 23 via existing function B. By additional function A, the outgoing connection office number which is designated and registered previously is added to the self-telephone number of the subscriber data to be then set to the originating register. Then the selection is carried our for outgoing trunk 24 by existing function C, and the selected figures are sent out from the sender. Thus the outgoing connection route extends via interruption train 25 up to the subscriber's line of A-type, A-type arrester 3, existing jumper 4 of MDF, newly installed jumper 5 and the terminal outside the office of electronic exchange arrester 6 each. And the connection state during this extension can be confirmed through the earphone. |
