. Bell telephone magazine . aken and floor-plan layouts in detailare made showing how the buildingspace is to be utilized in the installa-tion of initial and future equipment. One phase of this planning jobinvolves the study of the central of-fice equipment. For example: (a) what is the best way and thecorrect time to make additions to anoffice; (b) can economies be made by defer-ring or advancing the installation of someitem of equipment; (c) should arrangements be providedinitially for some feature required at alater date in order to facilitate its in-troduction ; (d) what is the best way to
. Bell telephone magazine . aken and floor-plan layouts in detailare made showing how the buildingspace is to be utilized in the installa-tion of initial and future equipment. One phase of this planning jobinvolves the study of the central of-fice equipment. For example: (a) what is the best way and thecorrect time to make additions to anoffice; (b) can economies be made by defer-ring or advancing the installation of someitem of equipment; (c) should arrangements be providedinitially for some feature required at alater date in order to facilitate its in-troduction ; (d) what is the best way to re-useequipment which may become spare atsome given location; (e) what will be the effect of futurerate and class of service changes on thecentral office equipment and buildingrequirements. The planning phase of the equip-ment engineers job is of greatest im-portance, as a carefully planned officecan result in considerable economiesin equipment costs, as well as give alayout which is convenient and easy touse and Four pairs of tubes are included in thiscoaxial cable, each pair capable of produc-ing 1800 telephone circuits or of transmit-ting television. One pair of tubes isusually reserved as spare 184 Bell Telephone Magazine AUTUMN
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