D-Link DES-1228 User Manual download pdf (Page 20)

connector, and the male into a power outlet. Supported input

voltages range from 100-240V AC, and 50-60Hz.

Understanding LED Indicators

The front panel LEDs provides instant status feedback and simplifies

monitoring and troubleshooting tasks.

Figure 6 – LED indicators of the Switch

Power and System LEDs

Power LEDs

On When the Power LED light is on, the Switch is receiving

power.

Off

When the Power LED light is off, the power cord is

not improperly connected.

CPU LEDs ( Management Indicator)

Blinking When the CPU is working, the CPU LED is blinking.

Off The CPU is idle.

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D-Link DES-1228 User Manual Page 20