. Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems . mentioned in the chapter on trunking. Strictly speaking, there were at one time two kinds, the switchingrepeater and the switching-selector repeater. The former was a repeateronly, and for its complete functioning required selectors in the sub-office inwhich it was located. The latter combines in itself the functions ofrepeater and of selector, from which it takes its name. It is not to beconfused with the selector-repeater, which functions first as a selectorand afterwards as a repeater. The old switchin
. Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems . mentioned in the chapter on trunking. Strictly speaking, there were at one time two kinds, the switchingrepeater and the switching-selector repeater. The former was a repeateronly, and for its complete functioning required selectors in the sub-office inwhich it was located. The latter combines in itself the functions ofrepeater and of selector, from which it takes its name. It is not to beconfused with the selector-repeater, which functions first as a selectorand afterwards as a repeater. The old switching repeater is no longerused. For the purpose of simplicity as well as of clearness, we will usethe term switching repeater in describing the present form of appa-ratus, which is primarily a repeater which acts as a selector under partof the conditions of use and switches the inter-office trunk out of use. At the left of Fig. 70 is shown a diagram of trunking utilizing switch-ing-selector repeaters. The apparatus inclosed within the dotted lines AUTOMATIC ELECTRIC COMPANYS APPARATUS 73. H04JMS2UI1 RlDLUUd LUOJJ
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttelephone, bookyear19
