UNDERSTANDING LED INDICATORS
The front panel LEDs provide instant status feedback, and help 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. |
|
|
|
CPU: Management Indicator
Blinking | : | When the CPU is working, the System LED is blinking. |
| |
|
|
|
|
|
On/Off | : | The CPU is not working. |
| |
|
|
|
|
|
|
|
|
|
|
Ports 1~48 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. |
| |
|
|
|
|
|
|
|
|
|
|
Ports 49~50 Gigabit 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. |
|
|
|
SPEED:
On | : | When the green light is on, the respective port is connected to a |
(Green) |
| 1000Mbps Gigabit Ethernet network. |
|
|
|