Power - line networking is one of several ways to connect thecomputersin your base . It apply the electrical wiring in your house to produce a connection .
LikeHomePNA , power - line networking is based on the concept of " no new wires . " The convenience is even more obvious in this eccentric because while not every room has aphone jack , you will always have an electric outlet near a computer . In office - line networking , you unite your calculator to one another through the same outlet .
Because it requires no new wiring , and the connection append no cost to your electric bill , power - personal credit line networking is the flash method acting of link computers in dissimilar rooms .
In this article , we ’ll talk about mogul - line networking and the technology used to make it happen . We ’ll also discuss the advantages and disadvantage of using a power - air connection .
Pros and Cons of Power-line Networking
There are two compete power - line of credit engineering . The original technology is calledPassport , by a company namedIntelogis . A fresh engineering calledPowerPacket , develop byIntellon , has been select by theHomePlug Allianceas the standard for power - line networking .
Here are the advantages of a power - line meshing :
The new PowerPacket engineering science provide a couple of other advantages as well . It is firm , rated at14 Mbit per second(Mbps ) . This speed allows for new applications programme , such as sound and video cyclosis , to be available throughout the family .
There are some disadvantage to connecting through mightiness - line when using the sr. Intelogis technology :
grant to Intellon , PowerPacket engineering science annihilate many of these business organization , citing the postdate advantages :
Now have ’s find out how each of these technology works .
Methods
Intellon and Intelogis use different method acting to establish power - stemma networks .
Intellon
Intellon ’s PowerPacket applied science , which dish as the footing for the HomePlug Powerline Alliance banner , utilize an enhanced shape oforthogonal relative frequency - variance multiplexing(OFDM ) with forward error - correction , similar to the engineering science found inDSL modem . OFDM is a variation of thefrequency - division multiplexing(FDM ) used inphone - line networking . FDM puts reckoner data point on separate frequence from the vocalism signals being hold by the telephone set pipeline , separate the extra signal space on a typical phone line into distinct data channel by splitting it into undifferentiated chunk of bandwidth .
In the suit of OFDM , the available range of absolute frequency on the electrical subsystem ( 4.3 MHz to 20.9 megahertz ) is dissever into 84 separate carriers . OFDM sends packet of information at the same time along several of the carrier wave frequency , allowing for increased speed and reliability . If noise or a surge in might employment disrupts one of the frequencies , the PowerPacket cow dung will sense it and interchange that datum to another attack aircraft carrier . Thisrate - adaptivedesign admit PowerPacket to maintain an Ethernet - course of study association throughout the office - crinkle net without losing any data .
The latest generation of PowerPacket technology is rated at 14 Mbps , which is faster than existing phone - line and wireless solution . However , as broadband accession and Internet - based mental object like stream audio and telecasting andvoice - over - IPbecome more platitude , speed necessity will continue to increase . Along these lines , Intellon ’s OFDM approach to mogul - line networking is highly scalable , eventually allowing the engineering to surmount 100 Mbps .
Intelogis
The older power - line engineering used byIntelogisrelies onfrequency - shift keying(FSK ) to send off information back and onward over the electric wires in your home . FSK employ two absolute frequency , one for 1s and the other for 0s , to send digital information between the computers on the connection . ( SeeHow Bits and Bytes Workto learn more about digital data point . ) The frequencies used are in a minute band just above the level where most line noise fall out . Although this method works , it is middling fragile . Anything that impinges on either relative frequency can break up the data flow , causing the send calculator to have to resend the data . This can affect the public presentation of the web . For example , this author noticed that when he was using more electricity in the star sign , such as running the washer and dryer , the meshing slowed down . Intelogis includes line - conditioning power strips with its connection kit and encourages you to enclose them between the wall electric outlet and your computing machine equipment to help slim the amount of electric - line of products noise .
Because the current crop of power - seam networks are designed to work on 110 - volt electric systems , the engineering science is not very useful to countries alfresco of North America that expend different standards .
Cost And Installation
Intelogis provides a kit that connects two computers and one printer for $ 59 . extra adapters cost about $ 40 . There are specific versions for figurer or printers , so make certain you get the correct one . Since the web does not affect power usage or consumption , no additional monthly toll are incur .
The cost of PowerPacket technology is expected to be comparable to HomePNA solution and importantly less than 802.11 wireless root .
The strong-arm connection between each computer and the Intelogis tycoon - line internet utilise the computer’sparallel larboard . A wall gadget is plugged flat into the electrical wall plug ( it will not go decently if plugged into asurge guardian ) .
A parallel cablegram is plug into the paries gimmick and into theparallel portof the computing machine . The power - seam connection must be the last item connect to the parallel port . For this reasonableness , if you have anything else connected to the parallel interface , such as ascannerorZip driving force , it must have a pass - through for the parallel port . Unless you have a second parallel port on your figurer , your printing machine must be relate to the internet through a wall machine of its own . Something to keep in head is that current power - line internet do not support bidirectional printing . " Bidirectional " means that data is sent in both directions , provide your printing machine to institutionalize data back to your computer , such as how much ink is get out and if there is a composition hole . This will not keep your printer from turn , but it is deserving noting that you will turn a loss the consumption of such feature .
Initial PowerPacket gadget link via aUSBor Ethernet electric cord from the reckoner to a small wall adapter . Subsequent devices will have the circuitry build in , meaning the only connection needed would be the world power corduroy .
Once the physical connections are made , installation of the package is a walkover . The computer software mechanically detects all nodes ( computers and printing machine ) on the internet . Whether your Internet connection is bycable modem , DSLor normalmodem , the included proxy server software allows you to share the cyberspace with your other computers . you’re able to easily add computers by but plugging a new transcriber in and installing the software . Additional printer can be added using the pressman plug - in transcriber . filing cabinet and printing machine sharingis done through Windows .
There are two common type of home networks : compeer - to - peer and client / waiter . Client / servernetworks have a centralised administrative organisation that provides information to all of the other gimmick . match - to - peermeans that each equipment can talk straight off to each other equipment on the net without confabulate a primal system first . Intelogis Passport applied science uses a client / waiter web . The first reckoner that you deploy the software on becomes the app Server . In nub , it is the conductor of the web , ascertain the flow of data point and telling each equipment on the web where to find the other equipment . Intellon ’s PowerPacket engineering habituate a peer - to - match connection .
The Future
Intellon ’s PowerPacket engineering is compatible with wireless and HomePNA solutions , making power - line an ideal option to serve as the anchor for a multi - technologyhome internet . In this lawsuit , consumer will not have to discard their live connection solutions in favor of a new standard .
The one common thread among all of the networking choice is the demand for power . While a wireless solution may indeed ban wires , its admission point is still live on to be plugged in at some point . That power cord , for example , can marry thewireless networkinto the menage ’s overarching big businessman - line of business web .
There are two other networking technology to discuss : phone - line and wireless web . get across on the title below to go to one of these clause for more information .
For more information on top executive - contrast networking , delay out the link on the next page .
