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2-3SectionWiring
23
Note The Hood (FG) is internally connected to the ground terminal (GR) on the Power
Supply Unit. Therefore, FG is grounded by grounding the ground terminal (GR)
on the Power Supply Unit.
Serial Communications Board
Power Supply Unit
Hood and GR are
internally connected.
Ground to 100 Ω or less Grounding the GR terminal
grounds the Hood (FG).
3. Be sure to turn ON the terminating resistance at the last Unit at the end of the
RS-422A/485 cable.
2-3-7 Wiring Connectors
Use the following steps to wire connectors.
Cable Preparation
See the following diagrams for the length of the cable portion to be cut in each
step.
Shield Connected to Hood (FG)
1, 2, 3... 1. Cut the cable to the required length.
2. Remove the specified length of the sheath from the cable using a knife. Be
careful not to scratch the braided shield.
25 mm (RS-422A)
40 mm (RS-232C)
3. Trim off the braided shield using scissors so that the remaining shield length
is 10 mm.
10 mm
4. Remove the insulation from each conductor using a stripper so that the ex-
posed conductor length is 5 mm.
5 mm