| 摘要 |
PURPOSE:To prevent the ineffective operation of the related exchange equipment and suppress the heavy fault and breakdown, by constitution such the outgoing sender link as to prevent the multiple connection between the outgoing trunk and the outgoing sender, and its release failure and fault. CONSTITUTION:The diodes are inserted in series between the connection point and the holding magnets PHMoo...PHMon, to the control line of each like to which are connected the holding magnets PHMoo...PHMon of the grid switches PL0 and SL0...SLn related to accomodation of the outgoing trunks OGToo...OGTom. As a result, it can be prevented that the earth comes around from other vertical line in the same horizontal line. Also, when the holding earth of the holding magnets PHMoo...PHMon is disconnected, the ring current of its counter electromotive force is removed so that release of the holding magnets PHMoo...PHMon is not delayed. In this way, the ineffective operation of the related exchange equipment can be prevented and the heavy fault and breakdown can be suppressed, by constituting such the outgoing sender link as to prevent the release failure and fault between the outgoing trunk and the outgoing sender. |
