Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 47
solid receiving ring, six the solid corrector ring, seven the solidsending ring and eight the solid local ring. 28. The various solid rings and segments of the distributor face plate are connectedto pins in three multiple unit connector plugs, one of which is shown in Figure 6. Theseare so arranged… … Fig. 6 29. One plug is connected to the rings and segments used in selecting and correctingand is called the receiving and correcting plug. A second plug is connected to the seg-ments and ring used in sending and is called the sending plug. The remaining plug isconnected to the ring and segments…
Telegraph
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-80-29.webp)
