15
UNDERSTANDING LED INDICATORS
The front panel LEDs provides instant status feedback, and, helps
monitor and troubleshoot when needed.
Figure 5. LED indicators of the Switch
Power and System LEDs
POWER: Power Indicator
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.
SYSTEM: Management Indicator
Blinking : When the CPU is working, the System LED is blinking.
On/Off : The CPU is not working.
16
Ports 1~24 10/100M Status LEDs
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 : 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
Ports 25~26 Gigabit Status LEDs
mini-GBIC
On : When the mini-GBIC module is installed, LED will lights on
Off : No mini-GBIC module is installed
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 : No link.