Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 406
ully inserted into thejack the sleeve of the plug does not touch the test ring, r. The in-sertion of the plug into the jack, besides completing the talking cir-cuit between the contacts, t and s, of the jack and those of the plug,presses the contact, i, belonging to that jack against the contact,… … FIG. 29S.—CLEVELAND CORD CIRCUIT. circuit between the line and the various signkling devices, and com-pletes the circuit with the tip and sleeve contacts of the jack. Thethird lever, 7, on the cut-off relay serves to connect all of the testrings belonging to the line to ground through a resistance…
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