. American telephone practice . ght angle. The arrangement of the operating room needs little description,as it is clearly shown in the plan of Fig. 490. The capacity of thisswitch-board, as provided for in multiple jack space and in thenumber of sections, is 9,600 lines. As room is provided for onlynineteen subscribers sections, this indicates an average of about500 lines per section, which would be considered high in a city of CENTRAL OFFICE EQUIPMENTS. 681 the size of New York, save for the fact that this office serves to agreat extent a residence district. The operating room has a hard-woo
. American telephone practice . ght angle. The arrangement of the operating room needs little description,as it is clearly shown in the plan of Fig. 490. The capacity of thisswitch-board, as provided for in multiple jack space and in thenumber of sections, is 9,600 lines. As room is provided for onlynineteen subscribers sections, this indicates an average of about500 lines per section, which would be considered high in a city of CENTRAL OFFICE EQUIPMENTS. 681 the size of New York, save for the fact that this office serves to agreat extent a residence district. The operating room has a hard-wood floor over which rubbertiling is laid, this being advantageous in point of the degree ofquiet which it affords, and also in the ease with which it may be keptclean. In the lay-out of this building it would have been more economi-cal, from the standpoint of first cost, to have devoted the third floorto the operating room, and the fourth floor to the operators quar-ters. By making the terminal as close to the ground as possible. FICx. TO CABLE SHAFT-LOS ANGELES OFFICE. and by placing the main distributing board as nearly in a lineabove the cable vault as possible, as has been done in this case, muchis saved in length, and therefore in the cost of the lead-coveredcable leading from the subways to the distributing frame. Bv plac-ing the operating room on the third floor, so as to be immediatelyabove the terminal room a considerable amount would have beensaved in the cables leading from the intermediate frame to themultiples and from the intermediate frame to the answering latter advantage, however, was sacrificed, undoubtedly, becauseof the fact that the top floor of the building was more adaptable
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Keywords: ., boo, bookcentury1900, bookdecade1900, bookidamericantelepho00mill
