Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 28
tribute traffic to all of the 100-line groups, that is, to all of thejunctions C. Only three C junctions are shown, but ten must be imagined. The junction S is the multipled banks of all the selectors. (Comparewith Fig. 10.) The links which connect S to the various junctions Care selector trunks,…
Telephone
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