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Video: Networks: With and without cables
Work, play, internet: you can link all digital devices together in-house. But which technology is suitable - for new buildings, old buildings, apartments?
The children do schoolwork on the computer, color printers and faxes are in the parents' office, web cameras monitor the garden and house entrance, the solar roof transmits performance data to the laptop, music, movies, daily news whizzes from the media center in the living room to PCs throughout the house, Internet radio in the kitchen: For some still a science fiction scenario, this is already part of everyday life for more and more households.
Radio network The WLAN router N1 Vision from Belkin (left) is easy to configure and improves the network performance with its three antennas
Combo The wireless extender from Devolo (right) combines the advantages of powerline networking and wireless WALN in just one device
Probably the one who already equipped all rooms with network cabling during construction. The installation costs are comparatively low and do not require any further effort later. Such an Ethernet network offers by far the highest transmission speed (1, 000 megabits, i.e. one gigabit). It is inexpensive, easy to install and insensitive to interference from hair dryers or neighbors' devices. The number of users does not really slow down the speed, which is why Ethernet is used in offices with many employees. The cables and network sockets are installed under or on plaster in cable ducts and can be used for all in-house telephones. If they fit behind skirting boards, they can also be retrofitted - otherwise there would be unsightly holes through walls and ceilings.
The existing cables in the house, namely the power cables, can also be used. Small adapters that fit into any wall socket connect computers and other digital helpers. In addition to the actual electricity, the data also flow via this medium. Sounds easy, the installation is essentially limited to plugging in the adapter and connecting it to the respective device. An adapter pair costs from 50 euros; if you want it a bit faster (for example to transfer larger amounts of data such as music or films), you will get rid of 120 euros - and more. The lower price range usually offers 14 to 85 megabits speed, the fastest variant currently offers 200 megabits.
The performance of the Powerline adapter depends heavily on the quality of the in-house power cabling: other household electrical consumers can severely disrupt the data signals and cut the speed in half. Inserting such an adapter into a multi-purpose box with other devices further reduces the speed drastically, as does surge protection plugs in front of the adapter. The longer the current paths between two connecting adapters, the worse the performance. You get the fastest transmission with Powerline on short distances. This is enough for internet use and large amounts of data such as backup or music transmission.
The limit of the data transfer via power line is the electricity meter, no data can get past it to the neighbor. The built-in data encryption prevents such adversity anyway - provided you buy adapters with the same transmission speed and from the same manufacturer: They understand each other well, but do not like to communicate with devices from other providers - buy the same stock. Powerline adapters are easy to install, work safely and reliably.
In this post you read:
- With and without cables
- Online quickly and everywhere