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Regulations and Standards
• This is a Class A product (for industrial environments). In a residential environment, it may cause
radio interference. If radio interference occurs, the user may be required to take appropriate mea-
sures.
Conformance to UL and CSA Standards
Some NX-series products comply with UL and CSA standards. If you use an NX-series product that
complies with UL or CSA standards and the machinery or system in which you use the NX-series prod-
uct must also comply with the standards, refer to the Instruction Sheet that is provided with the product.
The Instruction Sheet provides the application conditions for complying with the standards.
Conformance to Shipbuilding Standards
Some NX-series products comply with shipbuilding standards. If you use an NX-series product that
complies with shipbuilding standards and the machinery or system in which you use the NX-series
product must also comply with the standards, consult with your OMRON representative. Application
conditions are defined according to the installation location. Application may not be possible for some
installation locations.
For usage conditions for shipbuilding standards, refer to Conformance to Shipping Standards in the
user's manual for the CPU Unit or Communications Coupler Unit that the NX Units are connected to.
Conformance to KC Standards
Observe the following precaution if you use NX-series Units in Korea.
Class A Device (Broadcasting Communications Device for Office Use)
This device obtained EMC registration for office use (Class A), and it is intended to be used in places
other than homes.
Sellers and/or users need to take note of this.
Software Licenses and Copyrights
This product incorporates certain third party software. The license and copyright information associated
with this software is available at http://www.fa.omron.co.jp/nj_info_e/.
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NX-series Digital I/O Unit User's Manual (W521)
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Troubleshooting
