Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 292
i. e., to send from our transmitting apparatus to our own printers, and thus makecertain that the set as a whole functions properly. To do this the distributor face plate Page 9 Section 7 Multiplex System 263-C PISTRIBUTOR TABLE TERMINAL BOX ON TWO PISTRIBUTOR 5ET5 THE WIRESCONNECTED TO 4-9H-I9… … Page 10 Section 7 Multiplex System 263-C
Telegraph
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