D-Link PowerLine Adapters: Electric networking

As home networks become larger and larger, new technology will be required to get gadgets connected that are sprinkled around the house. D-Link, along with other manufacturers, has recognized that many electronics now require internet connectivity, but are either not wireless, or located next to an ethernet plug.

A possible solution to this problem is network adapters that work over existing electrical wires embedded in walls. There are multiple technologies in the market now, and many do not work together, but most work in the same way. An adapter is plugged into the wall socket, with an ethernet cable connected to a device, then another adapter is plugged into a socket and wired router. Now the device is connected to the network, and can enjoy (theoretical) speeds of 200 Mbps.

Setup

In terms of installation, I don’t think I’ve used a network product with an easier setup. With an adapter connected to my router, and another connected to my Playstation 3, I had internet within seconds. The adapters are small enough to fit in convenient places, and the LEDs provide feedback about device status and network connectivity.

Performance

I bought a set of these adapters to connect my PS3 to my network and enjoy media shared on my computer. After the setup and a quick connectivity test, I was excited to try a movie. Sadly, this was where the set fell short.

D-Link says that under ideal conditions, these adapters can provide up to 200 Mbps throughput (which is about 25 MB/s). In my house, I achieved about 3 MB/s. This was found by using my MacBook to transfer files over ethernet. Disappointed but not defeated, I moved the second adapter through my house to test the transfer speeds. Speeds ranged from 768 KB/s on the opposite side of the house to 6 MB/s in the same room as the router. This was about the same as my previous solution, so I decided to return the adapters.

Conclusions

I can’t say I’m all that surprised about the performance, as wiring varies from house to house. My house was especially tough because the router room is on a different subsystem than the living room. This product would probably work best in a fairly new house, with sockets in basically the same area.

If you’re planning on purchasing a set of PowerLine adapters, be sure to check your supplier’s return policy. Test them immediately in a variety of locations and configurations, and look at alternative solutions if they don’t perform close to the manufacturer’s estimation.


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