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Lantronix
SM24TBT2DPB Install Guide
33845 Rev. B
Page
43
of
48
LED Troubleshooting
Use the table below to troubleshoot problems by taking actions based on the suggested solutions within
.
Symptom
Possible Cause
Suggested Solution
SYS
TEM LED is Off The switch is not
receiving power.
1. Check if correct power cord is connected firmly to the switch
and to the AC outlet socket.
2. Cycle switch by unplugging and plugging the power cord back
into the switch.
3. If the LED is still off, try to plug power cord into a different AC
outlet socket to make sure correct AC source is supplied.
SYS
TEM LED is
RED
An abnormal state
was detected by
the switch.
Check the switch system log via the Web UI for any
abnormal state (e.g., exceeding operating temperature
range) and take corresponding actions to resolve.
Port Status LED is
Off in Link/Act/Speed
Mode
The port is not
connected, or the
connection is not
working.
1. Check if the cable connector plug is firmly inserted and locked
into the port at both the switch and the connected device.
2. Make sure the connected device is up and running correctly.
3. If the symptom still exists, try a different cable or different port,
in order to identify if it is related to the cable or specific port.
4. Check if the port is disabled in the config settings in the Web
UI.
Port Status LED is
Off in PoE Mode
The port is not
supplying power
1. Check if the cable connector plug is firmly inserted and locked
into the port at both the switch and the connected device.
2. Make sure that correct Ethernet cables are used.
3. If the symptom still exists, try a different cable or different port,
in order to identify if it is related to the cable or specific port.
4. Check if the port is disabled in the config settings in the Web
UI.