. The Bell System technical journal . CONfLICT (IDTiNC NAUC ,CnirilCTIIte NAME J 1 K n SAW PIAl IS) ■M&, ®©d* SEARCH rOR NAMESi: 50UICES or KtUES COHSULIEO 1( HJHES COKSIOEREOOf •HICK HOT MODE THANISO cm BE USED 0PtRAIl)16 TESTS tlU PROSJBIIruKTHEB REDUCE THIS NIIUStR 1-in. 14 in\olved. B> establishinj.; a pi,in, iiowexcr, in\()l\ini; lidtii direct trunks, the mosl economical |)lan can be determined uponand in this case about 0,000 groups of trunks are rcc|uired. Fig. 13shows how rapidly the trunk groups increase with ilu- .uidiiicni ofstations and central otliccs. You c
. The Bell System technical journal . CONfLICT (IDTiNC NAUC ,CnirilCTIIte NAME J 1 K n SAW PIAl IS) ■M&, ®©d* SEARCH rOR NAMESi: 50UICES or KtUES COHSULIEO 1( HJHES COKSIOEREOOf •HICK HOT MODE THANISO cm BE USED 0PtRAIl)16 TESTS tlU PROSJBIIruKTHEB REDUCE THIS NIIUStR 1-in. 14 in\olved. B> establishinj.; a pi,in, iiowexcr, in\()l\ini; lidtii direct trunks, the mosl economical |)lan can be determined uponand in this case about 0,000 groups of trunks are rcc|uired. Fig. 13shows how rapidly the trunk groups increase with ilu- .uidiiicni ofstations and central otliccs. You can well imagine the engineering :His\: //?()/v/./;. ()/• ////; x\7 prohkiu iinoUicl in workiiin out tlir most illiiifiil Irunkiii); for aciiy sui-h as Ni-w York or (.liicMkjo. Aside from tlu- layout of llu- trunk plant itsolf, tin- unnini-i-rinj; workinvolves the design and construction of tlu underground subwaysNstem and the desikjn of the physical cable i)lani. In one >ear in Kig. 1. liii^ <,rein tilfphoiic hiiililini;. New \()rk Cit\- New York City alone, enough cable has been installed and |)laced inservice to make a cable containing 1,2()U wires reaching trom NewNork to Chicago. The expansion of the metropolitan plant to care for the increase inthe number of subscribers also in\olves, of course, opening many newoffices and the provision of new switchboards and additions to theexisting switchboards. The matter of selecting the name for a newcentral office would at first apjx-ar to be a simple one, but as indicatedby Fig. 14 it is a very involved problem in itself. As will be noted,there are many ciuestions to be considered. One feature relates tothe matter of dialing. It is interesting to note from Fig. 14, however,that while the name John does not seem in any way to contlictwith the name KiiickiTbdcker. \et these two names could not be 538 S)SII.\t I JOLRSAL used logcllur in llii: same city because of confli
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
