Lantronix
SM24TBT2DPA Install Guide
33737 Rev. L
Page
12
of
38
LED Descriptions
The LEDs on the front panel provide switch status checking and monitoring. The three types of LEDs are described
below:
SYS (System) LED
: indicates if the switch is powered up correctly or indicates if there is a system alarm triggered
for troubleshooting.
LED
Color
State
Description
Sys
tem
Green
On
The switch is powered ON correctly.
Off
The switch is not receiving power.
Red
On
An abnormal state, such as exceeding operating temperature
range, has been detected in the switch.
Mode LEDs
: indicate the mode of all RJ45/SFP ports on the switch. You can press the
Mode
button sequentially
to switch between the two different modes (Link/Activity/Speed mode and PoE mode).
LED
Color
State
Description
Link/Act/Speed
Green
On
The Port Status LEDs display link status, network activity and
speed of each port.
PoE
Green
On
The RJ45 Port Status LEDs display PoE powering status of each
port.
Power Supply LEDs
: The LEDs on the Power Supply indicate Power Supply status.
LED
Color
State
Description
DC OK
Green
Red
--
On
On
Off
DC output is ready.
DC output has failed.
DC output is off.
AC OK
Green
Red
--
On
On
Off
AC output is ready.
AC output has failed.
AC output is off.
