ZyXEL Communications Corporation EMG2881-T20A Benutzerhandbuch
EMG2881-T20A User’s Guide
106
C
HAPTER
12
Troubleshooting
12.1 Overview
This chapter offers some suggestions to solve problems you might encounter. The potential problems are
divided into the following categories.
divided into the following categories.
•
•
•
•
•
12.2 Power, Hardware Connections, and LEDs
The EMG2881-T20A does not turn on. None of the LEDs turn on.
1
Make sure you are using the power adaptor or cord included with the EMG2881-T20A.
2
Make sure the power adaptor or cord is connected to the EMG2881-T20A and plugged in to an
appropriate power source. Make sure the power source is turned on.
appropriate power source. Make sure the power source is turned on.
3
Disconnect and re-connect the power adaptor or cord to the EMG2881-T20A.
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 1.5 on page 12
.
2
Check the hardware connections. See the Quick Start Guide.
3
Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4
Disconnect and re-connect the power adaptor to the EMG2881-T20A.
5
If the problem continues, contact the vendor.