Troubleshooting; Chapter 45 Troubleshooting; Power, Hardware Connections, And Leds - ZyXEL Communications MES3500-24F User Manual

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
45.1 Power, Hardware Connections, and LEDs
The Switch does not turn on. None of the LEDs turn on.
Make sure the Switch is turned on (in DC models or if the DC power supply is connected in AC/DC
1
models).
Make sure you are using the power adaptor or cord included with the Switch.
2
Make sure the power adaptor or cord is connected to the Switch and plugged in to an appropriate
3
power source. Make sure the power source is turned on.
Turn the Switch off and on (in DC models or if the DC power supply is connected in AC/DC models).
4
Disconnect and re-connect the power adaptor or cord to the Switch (in AC models or if the AC
5
power supply is connected in AC/DC models).
If the problem continues, contact the vendor.
6
The ALM LED is on.
Turn the Switch off and on (in DC models or if the DC power supply is connected in AC/DC models).
1
Disconnect and re-connect the power adaptor or cord to the Switch (in AC models or if the AC
2
power supply is connected in AC/DC models).
If the problem continues, contact the vendor.
3
MES3500-24/24F User's Guide
C
HAPTER

Troubleshooting

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