Title :
Telephone toll cable extended
Author :
Calderwood, E. M. ; Smith, D. F.
Author_Institution :
Pac. Tel. & Tel. Co., San Francisco
Abstract :
Completion of the longest telephone toll cable west of the Mississippi gives San Francisco and Los Angeles a 275-circuit all-cable communication channel, the equivalent of three of the latest-type 60-wire open leads completely equipped with carrier systems. The project cost ten million dollars, involved some heavy construction problems, and provided an important step toward an ultimate all-cable transcontinental system.
Keywords :
Cable shielding; Coils; Communication cables; Loading; Power cables; Repeaters; Wires;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1931.6429423