4 Installation and Wiring
4 - 10
NX-series Digital I/O Unit User’s Manual (W521)
z Supply from External Source
This power is supplied to the Units from an external source.
I/O power is supplied by connecting an I/O power supply to the I/O power supply terminals on the
Units.
Power Supply-related Units for the NX-series
The following three NX-series Units are related to power supply.
• Additional NX Unit Power Supply Unit
• Additional I/O Power Supply Unit
• I/O Power Supply Connection Unit
Refer to the NX-series System Unit User’s Manual (Cat. No. W523) for the specifications of
these Units.
For a complete list of the latest power supply Units in the NX Series, refer to the product catalog
or OMRON websites, or contact your OMRON representatives.
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