# What do the different LEDs on the HomePlug adapter mean? EG4xxx and EG30xx meters can function with a wide variety of HomePlug AV compliant powerline communication adapters. Some officially supported adapters and their LED keys are shown below.
### TRENDnet HomePlug AV (TPL-406E2K) ![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/25005635543/original/K5IuML_ZyFBrRmknYApI1qvEKIGcajCNKw?1525380025)
**LED** **Function** **Typical Behavior** **Other Behavior**
POWERIndicates the adapter has powerGreen lightNo LED - no communication for too long or not receiving power
ETHERNETIndicates an Ethernet line connectionOn - live Ethernet line connected Blinking - sending/receiving Ethernet dataOff - may indicate an issue with network connectivity or a damaged Ethernet cable
DATAIndicates presence of powerline communicationOn - Powerline device connected Blinking - sending/receiving powerline data Off - no connection to any HomePlug devices
### Actiontec HomePlug AV (PWR500/PWR200)
![HomePlug AV Adapter](http://www.egauge.net/images/homeplug_av_lights.png "HomePlug AV Adapter")
**LED**FunctionTypical Behavior**Other Behavior**
PWRIndicates the adapter has powerGreen lightNo LED - no Ethernet communication for too long or not receiving power
LKIndicates a connection with the eGauge or another HomePlug AV adapterBlinking red light when communicating with the eGaugeBlinking orange or green - possible connection with another HomePlug AV device Off - no connection to any HomePlug AV devices
ETHIndicates an Ethernet line connectionBlinking green light when transmitting dataOff - may indicate an issue with network connectivity or a damaged Ethernet cable
### HomePlug 1.0 HPE100T
![HomePlug 1.0 Adapter](http://www.egauge.net/images/actiontec-plugged-large_lights.png "HomePlug 1.0 Adapter")
**LED****Function****Typical Behavior**
PowerAdapter has power and is connected to the eGauge or another HomePlug 1.0 deviceGreen light when active, blinking green light when transmitting dataOff - adapter is not receiving power, or cannot communicate to the eGauge
LinkIndicates an Ethernet line connectionGreen when active, blinking green when transmitting dataOff - issue with network connectivity or a damaged Ethernet cable
**NOTE:** Other HomePlug adapters from different manufacturers may work. However, since they have not been tested by eGauge we cannot guarantee full functionality. Troubleshooting and support may be limited in these situations. HomePlug 1.0 adapters are no longer available directly through eGauge - please see our article on [locating replacement HomePlug 1.0 adapters](https://egauge.freshdesk.com/solution/articles/25000010951-where-can-i-find-a-homeplug-1-0-adapter-for-my-egauge2-) for more information.