ZyXEL Communications XGS4700-48F Troubleshooting, 54.1Power, Hardware Connections, and LEDs

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Troubleshooting

This chapter offers some suggestions to solve problems you might encounter. The potential problems are divided into the following categories.

•Power, Hardware Connections, and LEDs

•Switch Access and Login

•Switch Configuration

54.1Power, Hardware Connections, and LEDs

The Switch does not turn on. None of the LEDs turn on.

1Make sure the Switch is turned on (in DC models or if the DC power supply is connected in AC/DC models).

2Make sure you are using the power adaptor or cord included with the Switch.

3Make sure the power adaptor or cord is connected to the Switch and plugged in to an appropriate power source. Make sure the power source is turned on.

4Turn the Switch off and on (in DC models or if the DC power supply is connected in AC/DC models).

5Disconnect and re-connect the power adaptor or cord to the Switch (in AC models or if the AC power supply is connected in AC/DC models).

6If the problem continues, contact the vendor.

The ALM LED is on.

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XGS4700-48F User’s Guide