ZyXEL Communications ADSL2+4 用户手册

P-660H-T1v3s User’s Guide

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

•

•

•
•

The P-660H-T1v3s does not turn on. None of the LEDs turn on.

Make sure the P-660H-T1v3s is turned on. 

Make sure you are using the power adaptor or cord included with the P-660H-
T1v3s.

Make sure the power adaptor or cord is connected to the P-660H-T1v3s and 
plugged in to an appropriate power source. Make sure the power source is turned 
on.

Turn the P-660H-T1v3s off and on.

If the problem continues, contact the vendor.

One of the LEDs does not behave as expected.

Make sure you understand the normal behavior of the LED. See 

.