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ES-1124 User’s Guide
25
CHAPTER 4
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter.
V The switch does not turn on. None of the LEDs turn on.
1 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 power source. Make sure the power source is turned on.
3 Turn the switch off and on.
4 Disconnect and re-connect the power adaptor or cord to the switch.
5 If the problem continues, contact the vendor.
V One of the LEDs does not behave as expected.
1 Make sure you understand the normal behavior of the LED. See Section 3.3 on page 24.
2 Check the hardware connections. See Section 3.1 on page 21.
3 Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4 Disconnect and re-connect the power adaptor to the switch.
5 If the problem continues, contact the vendor.