File:Bell telephone magazine (1922) (14569757169).jpg

Identifier: belltelephone7273mag00amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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enver, whereWestern, Bell Labs and AT&T spe-cialists in equipment to be used incustomer premises are now concen-trated in a new plant. Standard PBXsystems are available for immediateshipment, while entirely new con-cepts can grow from a gleam in adesigners eye to a finished productready to be installed on a customerspremises in less than a years time. Source Document Engineering( SDE) is another way the engineer-ing interval has been reduced. Itsnow widely used on broadband jobsfor Long Lines, but there are alsomany variations of SDE used oncentral office installations. SDEeliminates one of the most time-consuming steps in the whole BellSystem engineering process. It by-passes the outline spec—one of thedocuments that was traditionallyprepared by the telephone companyengineering staff for Westerns usein doing the detailed engineeringjobs. The outline spec often had tobe revised because of changes inplans which the companies wishedto incorporate. With the regionalization of West-
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erns Systems Equipment Engineer-ing groups in the mid 60s, webrought engineering forces in theBell System closer together phys-ically. With SDE, were takinganother step in the same direction.Telephone engineers now initiate aproject by providing such sourcedocuments as facility charts, trafficorders or circuit requirements andWestern engineers at the regionalcenter then draw up the spec usingall available details. They have thelatest technological data as well asthe latest traffic studies all in oneplace. As a result, weeks of engi-neering time can be eliminated. Thetelephone company engineer whowas normally tied up on such a jobfor months can now devote his fulltime to determining needs andchecking to see that the specifica-tions will do what is expected andthat the price is reasonable. Another major development inthe regionalization of Westerns service operation is known as theMaterial Management Center(MMC) concept. The first of thesenew facilities is expected to beginoperations be

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