Can several Powerline networks exist simultaneously in same power circuit?

Yes.

The powerline networks can be separated by different network names. About how to change the network name, it can be made by the pair button or attached Utility. Please refer to the FAQ below.
How to secure (pair) the Powerline Network

However, the overall throughput is shared by the multiple networks, please be informed of this.

This Article Applies to:
TL-WPA4227KIT , TL-PA7020P , TL-PA551KIT
User Application Requirement | Updated 11-25-2014 15:14:57 PM