File:The Bell System technical journal (1922) (14569203789).jpg

Identifier: bellvol36systemtechni00amerrich (find matches)
Title: The Bell System technical journal
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company
Subjects: Telecommunication Electric engineering Communication Electronics Science Technology
Publisher: (Short Hills, N.J., etc., American Telephone and Telegraph Co.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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with battery standby, (c) battery plants forsupplying the carrier terminal bays, and (d) last but by no means leastin complexity, the cable current supplies themselves. These latter fur-nish regulated direct current to a series loop consisting of the centralconductors of the two cables, with their repeaters. A power systemground is provided at the midpoint of the cable current supply at eachcable station. FACTORS AFFECTING SYSTEM DESIGN General A repeatered submarine cable system differs from the land-wire typeof carrier system in two major respects. First, the cost of repairing afault, and of the concurrent out-of-service time, is so great as to putan enormous premium on integrity of all the elements in the system andon proper safeguards in the system against shore-end induced faults.Second, once such a system is resting on the sea-bottom it is accessiblefor adjustment only at its ends. These two restrictions naturally had aprofound influence on the design of the North Atlantic link.
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