. Electrical world. speak over an order wire to a toll switchingoperator at the local board, and ttll her that a certain subscriber de-sires a toll connection. The toll trunk operator will then insert a tolltrunk plug which is not in use into the multiple jack of that line, andthe subscribers operator will remove the answering plug from the answering jack of the subscribers line. The act on the part of thetoll trunk operator of inserting the toll trunk plug into the multiplejack will, since the subscriber of that line has his receiver off theliook, light a lamp with a white cap, located in the
. Electrical world. speak over an order wire to a toll switchingoperator at the local board, and ttll her that a certain subscriber de-sires a toll connection. The toll trunk operator will then insert a tolltrunk plug which is not in use into the multiple jack of that line, andthe subscribers operator will remove the answering plug from the answering jack of the subscribers line. The act on the part of thetoll trunk operator of inserting the toll trunk plug into the multiplejack will, since the subscriber of that line has his receiver off theliook, light a lamp with a white cap, located in the face of the tollboard at the recording operators position. The lighting of thislamp corresponding to any toll trunk line is therefore dependent,first, on the toll trunk operator having made a connection between theend of that line and the line of a subscriber; second, on that sub-scriber having his receiver off the hook. The recording operator, inresponse to this signal, will throw the listening key associated with. FIG. 9.—SHOWING CONNECTION OF LOCAL TO TOLL SUBSCRIBERS. WESTERN ELECTRIC A. this lamp and located directly below it. This act will extinguishthe white lamp and light in its place a green one. It will alsoconnect the operators telephone circuit to the toll trunk line,and therefore enable her to communicate over it with the sub-scriber. She is thus enabled to make out a ticket containing theproper data for the toll connection, and will pass it on to one of thetoll line operators. Having done this she will restore her listen-ing key, but in doing so she will not extinguish the green lamp, asit remains lighted until the toll operator in taking up the con-nection inserts a plug into the multiple jack of the toll trunk line. The purpose in furnishing two lamps at the recording operatorsposition is to make it impossible for the recording operator, aftershe has answered the call and before the toll operator has takenup the connection, to forget that she has already resp
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
