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Alarm Relay Connection
The alarm relay contact can be wired into an alarm circuit which
senses an alarm condition when the contact is broken. The alarm relay is
normally closed when there is no alarm condition. The alarm conditions
are user programmable through management to include power, link
faults or other fault conditions. Please note that the alarm relay contact
can only support 1A current at 24VDC. Do not apply voltage and current
that exceed these specifications.
Figure 6. Alarm Relay Wiring
Earth Ground Connection
An earth ground connector is provided on the top panel with an earth
ground sign next to it. Grounding the device can help to release leakage
of electricity to the earth safely so as to reduce injuries from
electromagnetic interference (EMI).
Prior to connecting to the power, it is important to connect the
ground wire to the earth. Follow steps below to install ground wire:
1. Loosen or remove the grounding screw.
2. Attach the grounding screw to the ring-type or fork-type
terminal of the grounding cable. Make sure that the
grounding cable is long enough to reach the earth.
3. Use a screwdriver to fasten the grounding screw.
Figure 8. Grounding Cable Type Figure 9. Grounding Connection
Figure 7. Alarm Relay circuit
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