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 145
on a certain shelf ofselectors; the next row below it stands for the corresponding level in anyshelf of selectors, and so on, until ten shelves have been connected. Itwill be seen that the retrograde nature of the bank slip is very clearlyshown, inasmuch as each trunk slips backward one contact for… … Fig. 115. -Symbol for trunkslip. TRUNKING, ITS PHYSICAL ARRANGEMENTS AND VARIATIONS 129 Trunk slip is often applied by inserting in the terminal assembly apair of jumpered terminal strips. These two strips are wired togetherby jumpers which lie in the assembly. If a slip of one is desired,…
Telephone
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