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CPU: Management Indicator
Blinking
:
When the CPU is working, the CPU LED is blinking.
On/Off :
The CPU is not working.
Fast Ethernet PoE Port Status LEDs (Port 1 ~ 24)
Link/ACT: Link/Activity
On :
When the Link/ACT LED
lights on, the respective port is
successfully connected 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.
100Mbps
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.
PoE Status
Green :
When the PoE powered device (PD) is connected and the port
supplies power normally.
Red :
When the PoE port have the following failure happens:
l PoE power circuit shortage.
l Power over current: over the power current of PD’
s
classification.
l Out of PoE voltage of 44 ~ 57 VDC output.
l Cost fail.
Off :
No PoE powered d
evice (PD) connected or unplugged the PoE
output port.