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 155
s itsown first five contacts individual. Bays 1-2 have 1 to 5 of the A sectionof second selectors. Bays 3-4 have 1 to 5 of the B section. Bays 5-6have 6 to 0 of the B section. All are common on 6 to 0 of the A section. 138 A UTOMA TIC TELEPHON Y In another case, all the A sections of selectors in a… … dank ._>Contact jNumbers, A 6 7 8 9 ) dank _.-• 2 Contact j. Numbers 4 . 5- 5^<2nd.Selectors 0^) ToSni.Scl. > ■ l-S\ -3-0 -5-5 B-6-0 ■7-5 7c J/-^/. 5<?/. Fig. 130.—First selector trunking, 3 boards to 2 groups of trunks. indicate sections. The G sections are likewise multipled, but on…
Telephone
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