Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 249
. This figure shows threelines passing through three separate sections in the multiple board.One side of each line, for instance of line 1, passes to all the con-tact rings, h, of the jacks belonging to that line. It then passes toone line terminal of the line drop, d The other side of the… … FIG. 204.-SIMPLIFIED DI.XGRAjM SERIESMlLTIFLE BOARD FORMETALLIC CIRCUITS. on the second section. So on the connection is made to allof the jacks belonging to this line, a wire leading from the anvilof the last jack to the other terminal of the annunciator. Lines 2and 3 pass successively through the…
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