The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 224
und up as shown, it is released fromthe forming blocks, lifted off the pegs in f f, carried to itsposition behind the boards, and the jacks fixed in their properplaces. Fig. 224 gives a section of the cables required forfitting up a board of 600 lines, being 30 cables for 30 strips ofjacks, showing… … 200 PRACTICAL TELEPHONE HANDBOOK other by making the parts of the connecting wires from thecables to the rows of jacks in six different lengths, differingfrom each other by the width of the cable. By this methodthe cables are very compactly arranged, the shortest possiblelength of cable is used,…
Telephone
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