TP-Link TL-PA4020P manual Physical Interface, Description

TL-PA4020PAV500 2-port Powerline Adapter with AC Pass Through

Ethernet LED

Solid	At least one Ethernet port is connected, but there is no
	data being transferred.
Blinking	At least one Ethernet port is transferring data.
Off	No Ethernet port is connected.

)Note:

5 minutes after the device connected to the adapter is turned off, and the adapter will automatically switch to the power-saving Mode. In power-saving mode, the Homeplug cannot be accessed via the electrical wiring, but its integrated electrical socket can supply the power normally. After the device connected to the Homeplug is switched on again, your Homeplug will leave the power-saving mode and the three LEDs will flash simultaneously.

1.4 Physical Interface

There are four physical interfaces on this Powerline Adapter.

Integrated

Electrical Socket

Pair Button

Power Plug

Ethernet Port

Interface	Description
Ethernet Port	It is a 10/100Mbps Ethernet port on the adapter for connecting it to
	the PC or the broadband device with the network cable.
Power Plug*	A Power Plug connected to any (100V–240V~, 50/60Hz) power
	socket
	Pair buttons are used to secure a powerline network. To secure
	your network, please follow the steps below. Firstly, plug in a new
Pair Button	adapter, and press its pair button for 1 second; then plug in another
	adapter and press its pair button for 1 second as well. The two
	buttons should be pressed within 2 minutes of each other. After
	that, wait about 60 seconds so that the two adapters can finish
	connecting.
Integrated Electrical	The integrated electrical socket allows additional devices or
	multiple sockets to be connected to the adapter just like to a normal
Socket
	wall socket. No electrical socket is lost.

*The provided power plug may differ from the picture due to different regional power specifications. Here we take the EU version as an example.

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