User Manual
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The device supports warm start of Trap. If existed IP address in Trap gateway, click "Apply", the
Trap receiver can get the trap information. If the trap receiver cannot get trap information, please
check network setting and connecting. Please pay attention to the privilege of Read and Write in
SNMP Explorer.
5.11.2 Relay Alarm
Warning had 2 type: Power alarm, port alarm. Main function: once the devices were in unusual status,
can inform administrator in time and repair the status of device quickly, can avoid more lose
Relay warning input type: Close/Open. Once select Close, the light will be bright when have alarm.
Relay will be in open status.
Power alarm
The switch provided dual DC power supply (AC power supply did not have alarm), if one power supply
had problem, another will support power supply immediately, dual power supply hot back-up. Select to
enable power alarm, if power supply was in unusual status, device will send alarm signal, inform power
supply work unusual.
Port Alarm
Alarm when port disconnect. Enable port alarm, if port was in unusual status(Connect or disconnect),
device will output a signal, inform the device work unusual.
(Figure 5.11.2)
In default status, the type of relay output is open, the alarm light is OFF, have no alarm, relay alway open.
When the device have alarm, the light is ON, relay close
