Cpu: Management Indicator; Fast Ethernet Poe Port Status Leds (Port 1 ~ 24); Link/Act: Link/Activity; 100Mbps - D-Link DES-1526 Manual

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

When the Link/ACT LED lights on, the respective port is
On :
successfully connected to an Ethernet network.
When the Link/ACT LED is blinking, the port is transmitting or
Blinking :
receiving data on the Ethernet network.
: There is no link.
Off

100Mbps

When the 100Mbps LED lights on, the respective port is
On :
connected to a 100Mbps Fast Ethernet network.
When the respective port is connected to a 10Mbps Ethernet
Off :
network.

PoE Status

: When the PoE powered device (PD) is connected and the port
Green
supplies power normally.
Red : When the PoE port have the following failure happens:
PoE power circuit shortage.
Power over current: over the power current of PD's
classification.
Out of PoE voltage of 44 ~ 57 VDC output.
Cost fail.
: No PoE powered device (PD) connected or unplugged the PoE
Off
output port.
20