3. Cabling
3-43
TI 32P01J10-01EN
Mar. 15, 2018-00
Example of Node Interface Unit and I/O Unit Cable Wiring (Junction Box)
IOBP
IOBP
NIU
From NIU
F030512.ai
： System Wiring Area
From NIU
IOBP
IOBP
Junction Box
Field Power Supply
F-SB Bus
Cable for Field
Power Supply
Power supply
cable for Base Plate
Power supply
cable for
Base Plate
IOBP: N-IO I/O Unit
Figure Example of Node Interface Unit and I/O Unit Cable Wiring (Junction Box)
WARNING
The wiring that will be intrinsic safety circuits must be installed so that they are electrically
separated from the wiring of non-intrinsic safety circuits, including the in-cabinet wiring. Install the
wiring according to the IEC 60079-14 standards or the requirements for explosion-proof wiring of
the country where the system is used.
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