. Electrical world. o the multiple jack. The ringing lamp associatedwith the trunk plug at the toll trunk position will light the toll trunk operator will ring the subscriber. When the sub-scriber answers the call, this ringing lamp goes out and cannot be re-lighted without first withdrawing the trunk plug from the jack. Thisconnection is shown in Fig. lo. At the end of conversation the toll line operator receives the dis-connect signal in the same manner as at the end of a local to tollconnection, and upon withdrawing the toll trunk plug from the tolltrunk jack, lights the dis
. Electrical world. o the multiple jack. The ringing lamp associatedwith the trunk plug at the toll trunk position will light the toll trunk operator will ring the subscriber. When the sub-scriber answers the call, this ringing lamp goes out and cannot be re-lighted without first withdrawing the trunk plug from the jack. Thisconnection is shown in Fig. lo. At the end of conversation the toll line operator receives the dis-connect signal in the same manner as at the end of a local to tollconnection, and upon withdrawing the toll trunk plug from the tolltrunk jack, lights the disconnect signal at the toll switching positionon the multiple board, in the same manner. The recording operator has nothing to do with establishing a con-nection from a toll to a local subscriber. In this case the toll lineoperator does all of the work at the toll board and makes out theticket without the help of any other operator. Thus, it will be seen,that unless the charge is to be reversed the recording operator. FIG. 10.—SHOWING CONNECTION OF TOLL TO LOC.^L ELECTRIC a. always makes out the ticket when the charge is to be made against acommon battery line, and the toll line operator when the toll stationis to be charged for the connection. This is a guard against makingmistakes and charging the wrong party for the conversation. If forany reason after a common battery subscriber has called for a tollconnection and the switching operator has inserted a trunk plug intothe multiple jack of the calling line and thus lighted the lamp at therecording operators position, the recording operator does not desireto have the connection made, she will press a push button key asso-ciated with the toll trunk line in use, thus extinguishing the lamp atthe recording operators position and lighting the disconnect lamp atthe toll switching operators position. WESTERN ELECTRIC TOLL SYSTEM B, USING THREE WIRES IN TOLL TRUNKCIRCUIT. In this system the repeating coil, instead
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
