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UNDERSTANDING LED INDICATORS
The front panel LEDs provides instant status feedback, and helps monitor and troubleshoot when needed.
System LEDs
POWER
Power Maximum
(PWR MAX)
CPU: Manage-
ment Indicator
Fast Ethernet PoE Port Status LEDs (Port 1 ~ 24)
Link/ACT:
Link/Activity
100Mbps
PoE Status
NP2500 24-Port 10/100 PoE + 2-Port 10/100/1000 WebSMART Switch User Guide
YML842 Rev1
Figure 7. LED indicators of the Switch
On
When the Power LED lights on, the Switch is receiving power.
Off
When the Power turns off or the power cord has improper connection.
On
When the system power resource remain <=15.4W (the system power
consumption >= 155W), the LED will be lights on, the system will not
provide power to the additional POE PD inserted.
Off
When the system has enough power more then 15.4W (the system
power consumption <155W).
Blinking
When the CPU is working, the CPU LED is blinking.
On/Off
The CPU is not working.
On
When the Link/ACT LED lights on, the respective port is successfully con-
nected to an Ethernet network.
Blinking
When the Link/ACT LED is blinking, the port is transmitting or receiving
data on the Ethernet network.
Off
There is no link.
On
When the 100Mbps LED lights on, the respective port is connected to a
100Mbps Fast Ethernet network.
Off
When the respective port is connected to a 10Mbps Ethernet network.
Green
When the PoE powered device (PD) was connected and the port supplies
power normally.
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