ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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GS1920v2 Series User’s Guide
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C
HA PTER
5 1
Tro ub le sho o ting
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
51.1 Po we r, Ha rdwa re C o nne c tio ns, a nd LEDs
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
Disconnect and re-connect the power adaptor or cord to the Switch.
4
If the problem continues, contact the vendor.
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 40 .
2
Check the hardware connections. See Section 51.1 on page 398 .
3
Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4
Disconnect and re-connect the power adaptor or cord to the Switch.
5
If the problem continues, contact the vendor.