ZyXEL Communications PLA-4xx Series Manuel D’Utilisation

Chapter 5 LEDs and Troubleshooting

PLA-4xx Series User’s Guide

The following table describes the lights’ behavior.

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1 Make sure you are using the power cord included with the PLA-4xx.
2 Make sure the power cord is connected to the PLA-4xx and plugged in to an appropriate 

power source. Make sure the power source is turned on.

3 Disconnect and re-connect the power cord to the PLA-4xx. 
4 Remove the powerline adapter from the outlet. Then connect an electrical device that 

you know works into the same power outlet. This checks the status of the power outlet.

5 If the problem continues, contact the vendor.

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1 Check the hardware connections. See the Quick Start Guide.
2 Inspect your cables for damage. Contact the vendor to replace any damaged cables.
3 Check the Ethernet adapter on your computer and make sure it’s enabled and working 

properly. 

4 If the PLA-4xx is connected to an Ethernet switch or router, make sure the device is 

working correctly, and that the LAN network is working and configured correctly as 
well. 

Table 10   PLA-470 Lights

POWER

On

The PLA-470 is on and receiving power.

Off

The PLA-470 is not receiving power.

LINK

On

The POWER port detects another powerline adapter.

Blinking

The PLA-470 is communicating with another powerline 

adapter.

Off

The POWER port is not detecting another powerline 

adapter.

ETHERNET

On

The ETHERNET port is on and ready and the PLA-470 

detects a device connected to it.

Blinking

The PLA-470 is communicating with a router, modem, 

switch or a computer connected to it.

Off

The PLA-470 does not detect any devices connected to its 

ETHERNET port.