Transition Networks
SISTM1040-262D-LRT
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6.9 Fault Relay Alarm
The Fault Relay Alarm function provides the Power Failure and Port Link Down/Broken
detection. With both power input 1 and power input 2 installed and the check boxes of
power 1/power 2 checked, the FAULT LED indicator will then light up when any one of
the power failures occurs. As for the Port Link Down/Broken detection, the FAULT LED
indicator will light up when the port failure occurs; the check box beside the port must be
checked first. Please refer to the segment of ‘
Wiring the Fault Alarm Contact
’ for the
failure detection.
Power Failure:
Tick the check box to enable the function of lighting up the
FAULT
LED on the panel when power fails.
Port Link Down/Broken:
Tick the check box to enable the function of lighting up
FAULT
LED on the panel when Ports’ states are link down or broken.
Fault Relay Alarm interface
