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Wago Corporation: Ethernet switches with alarm

Wago’s 852 Series ethernet switches offer an alarm contact, enabled via dip switch, to signal an error condition on the switch.
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FILED IN:  Controls  > Strategy
This feature is standard on both managed and unmanaged switches (non-ECO versions). The power input connector on the switch has two dedicated alarm circuit connections that can be wired to any warning device, such as a PLC or pilot light. Error conditions that can be monitored include port link failure (cable disconnect, network disruption, etc.), power supply disruption/disconnect, or power supply voltage out of specified range (9…48V).

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