5 Understanding LED Indicators

The front panel LEDs provides instant status feedback and helps monitor and troubleshoot when needed (Figure 5).

Figure 5: LED indicators of the Switch

5.1Power and System LEDs

Power: Power Indicator

On: The Switch is receiving power.

Off: The Switch is not receiving power or the power cord has an improper connection.

System: CPU Indicator

Flashing: The CPU is working.

On: The CPU is idling.

Off: The unit is off.

5.2Ports 1~24 Status LEDs

Link/ACT: Link/Activity

On: The port is successfully connected to an Ethernet network.

Flashing: The port is transmitting or receiving data.

Off: The port is disconnected.

100Mbps

On: The port is connected to a 100Mbps Ethernet connection.

Off: The port is connected to a 10Mbps Ethernet connection or is disconnected.

5.3Ports 25~26 Status LEDs

Link/ACT: Link/Activity

On: The port is successfully connected to an Ethernet network.

Flashing: The port is transmitting or receiving data.

Off: The port is disconnected.

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Freedom9 2420 Understanding LED Indicators, Power and System LEDs, Ports 1~24 Status LEDs, Ports 25~26 Status LEDs