Westermo U100 User Manual
Page 16
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OnTime Industrial Ethernet
100 Series
V 1.0
- 16 -
Section 2.0
Switch Specifications
Power Supply Connector
The switch is designed to operate permanently over a very wide range of power (19 V DC to
72 V DC). Two redundant inputs are provided to provide enhanced redundancy if either
supply fails.
The power supply draws power from the input that has the highest potential difference when
compared to the alternate supply.
This enables use of a 48V source as primary supply with a 24VDC battery as back up.
Power supply inputs have reverse polarity protection.
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