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2. Tighten the wire-clamp screws for preventing the wires from loosening.
PWR1 and PWR2 must provide the same DC voltage for power
load balance while operating with dual power input.
2.5 Wiring the Faulty Alarm Contact
The faulty alarm contacts are in the middle of the terminal block connector
as the picture shows below. Inserting the wires, the Industrial Gigabit PoE+
Switch will detect the fault status of the power failure and then forms an open
circuit. The following illustration shows an application example for wiring the
faulty alarm contacts.
Faulty Alarm Contacts
1
2
3
Power 1
Alarm
V+
V-
1
2
3
4
Alarm
Insert the wires into the fault alarm contacts
4
5
6
Power 2
V+
V-
5
6
The Faulty Alarm Contacts are
energized (CLOSE) for normal
operation and will OPEN when
failure occurs
9
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