. American telephone practice . £=33 c c II 1V i i i yf ii if1MULTIPLE JACKS. FIG. 458.—DIAGRAM OF CONNECTIONS THROUGH INTERMEDIATEDISTRIBUTING FRAME—WESTERN ELECTRIC SYSTEM. change is made at the intermediate board. The line and cut-offrelays are therefore given numbers of their own, and do not bearthe same numbers as the multiple jacks and subscribers lines whichthey serve. To make this clearer, reference is made to Fig. 458, which showsthe part that the intermediate frame plays with respect to the linecircuit of the Western Electric multiple switch-board system. The line will be seen enteri
. American telephone practice . £=33 c c II 1V i i i yf ii if1MULTIPLE JACKS. FIG. 458.—DIAGRAM OF CONNECTIONS THROUGH INTERMEDIATEDISTRIBUTING FRAME—WESTERN ELECTRIC SYSTEM. change is made at the intermediate board. The line and cut-offrelays are therefore given numbers of their own, and do not bearthe same numbers as the multiple jacks and subscribers lines whichthey serve. To make this clearer, reference is made to Fig. 458, which showsthe part that the intermediate frame plays with respect to the linecircuit of the Western Electric multiple switch-board system. The line will be seen entering at the left and passing through thetwo sides of the main distributing frame, the jumper wires on thisframe being indicated in dotted lines. From the main distributingframe the two sides of the line are continued to two clips on theintermediate distributing frame to which same clips arc run. the 40 626 AMERICAN TELEPHONE PRACTICE. tip and sleeve sides of the multiple jacks, the test wires on themultiple jacks being run to a third clip on the same side of thisframe. A
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