Physical and technical problems associated with moving two centralized traffic control machines to point far from controlled territory and putting them to work through leased telephone voice circuits without interrupting train service are discussed; machines control CTC on New York Central's double-track mainline from Buffalo, NY to Collinwood, Ohio, and operate through Telpak voice circuits that have relatively flat transmission response over spectrum from 400 to 2500 cps.
NYC moves CTC point of control
Ry Signaling Communications
Railway Signaling and Communications ; 57 , n 7
1964
4 pages
Aufsatz (Zeitschrift)
Englisch
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