NetComm POWERLINE NP204 Quick Start Manual page 4

At this point, you can plug another electrical appliance into the Powerline
Adapters AC pass-through if you wish to do so.
Both Adapters will take a short time to find each other. Once they have, all three
lights on both Adapters should be on.
NOTE: For best performance connect other electrical devices to the AC Pass-through socket rather than connecting the
Powerline Adapter to a powerboard. If possible, also avoid plugging other electrical devices into the socket next
to the Powerline Adapter to ensure your network performs to its full potential.
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