pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

Phone-line Networks

Phoneline networking takes advantage of unused transmission capacity to transmit data over existing telephone wires. They transmit information at frequencies well above that of plain old telephone service (POTS) or digital services like ISDN and DSL, so the network does not interfere with the normal use of the phone line for voice, fax or Internet services running over the same telephone circuit. Nor do these other phoneline services affect network data transmission quality.

Phoneline

The technology used to divide up shared bandwidth is frequency division multiplexing (FDM). This well-established technique divides up the total bandwidth into different frequency bands, called channels, using frequency-selective filters. Each of the different types of traffic – power, analogue voice and digital information (including data, audio and video) – use different channels.

The initial Home Phoneline Networking Alliance (HomePNA) specification – released in the autumn of 1998 – adopted the IEEE 802.3 media access method, essentially delivering 1 Mbit/s Ethernet over phone lines. The subsequent HomePNA 2.0 specification – finalised in late 1999 – takes advantage of digital signal processing (DSP) technology embedded in silicon to offer consistently higher performance, better adapt to poor line conditions by continuously boosting signal strength and improve filtering of noise (interference) from nearby appliances. HomePNA 2.0- based products can support transfer speeds of up to 10 Mbit/s, ten times faster than HomePNA 1.0- based products.

In a typical home phoneline network internal or external network adapters are installed in each PC, which are plugged into a nearby phone jack. Printers or other peripherals – including simultaneous access to the Internet via a single 56 Kbit/s analogue, ISDN, cable or DSL modem – can then be shared through a connected PC.

Phoneline networking works best in homes where the computers are located in different rooms near phone jacks on the same circuit – that is, using the same telephone number. The fact that each home has a unique phone circuit from the telephone company’s central office ensures a high level of network security.

Filed Under: Networking

Latest Articles

Modems

A modem allows a PC to connect to other computers and enables it to send and receive files of data over the telephone network. At one end it converts digital data into a series of analogue signals for transmission over … [Read More...]

Why Drupal Accessibility is Vital for Your Website

Drupal may not be as popular as WordPress, but it is still used in over 1 million websites. The Internet might be more conducive to our needs if more sites were compatible with it. One of the benefits of investing Drupal is that it can provide a better user experience for disabled people. There … [Read More...]

Magneto-optical drives – MO technology

As implied by the name, these drives use a hybrid of magnetic and optical technologies, employing laser to read data on the disk, while additionally needing magnetic field to write data. An MO disk drive is so designed that an inserted disk will be exposed to a magnet on the label side … [Read More...]

Tips on How to Land a Remote Job in Cyber Security

The demand for skilled cyber security professionals is growing as well as a number of threats and risks. Any company needs an expert or team to … [Read More...]

Video Tutorials for Anyone Wanting to Learn About Big Data

Did you know that we create about 2.5 quintillion bytes of data every single day? There is no denying the fact that big data is changing our world in … [Read More...]

Video Tutorials to Help Canva Users Shorten their Learning Curve

Canva is a very popular design software that is used by over 55 million designers. It is a robust application, but it can be tricky for beginners to … [Read More...]

Great Videos to Learn About Cricut Design Space

Cricut Design Space is one of the best digital design applications for people trying to create projects for Cricut projects. You can create a lot of … [Read More...]

Great Videos on Dangerous Computer Viruses

Computer viruses are obnoxious programs that can wreak havoc on even the most sophisticated machines. The good news is that people will be better … [Read More...]

Best Creative Commons Videos on Learning Adobe Illustrator

Adobe Illustrator is one of the most popular design tools available. The tool has been around since 1987 and is used by over 90% of the world's … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

MyStart Incredibar Removal

MyStart Incedibar is a browser highjack.  It normally comes bundled with other free programs.  Once installed on a computer it highjacks your home … [Read More...]

Bitdefender Total Security Review

PROS: All products are combined into one for PC security,plus systems tools for PC performance. CONS: Since the program scans your computer … [Read More...]

Keep your Computer free from Viruses and More

Computer technology is advancing at a blistering pace, with each new year bringing stunning leaps and bounds over the previous year's already … [Read More...]

[footer_backtotop]

Copyright © 2022 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors