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Regulations and Standards 4
• The secondary circuits of the DC power supply must be isolated from the
primary circuit by double insulation or reinforced insulation.
• The DC power supply must satisfy the requirements for class 2 circuits or
limited voltage/current circuits given in UL 508.
• The output hold time must be 20 ms or longer.
■ Periodic Inspections and Maintenance
• Disconnect the EtherNet/IP-DeviceNet Router from the power supply
before replacing the EtherNet/IP-DeviceNet Router. Devices connected to
the EtherNet/IP-DeviceNet Router may operate unexpectedly.
• Do not disassemble, repair, or modify the EtherNet/IP-DeviceNet Router.
Doing so may lead to loss of safety functions.
■ Disposal
• Be cautions not to injure yourself when dismantling the EtherNet/IP-
DeviceNet Router.
4 Regulations and Standards
The EtherNet/IP-DeviceNet Router has been certified as follows:
Certifying organization Standards
UL UL508, UL1604,
CSA22.2 No142, CSA22.2 No213
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