Presentation On ADSLAsymmetric Digital Subscriber Line

Introduction ADSL is a form of DSL, a data communications

technology that enables faster data transmission over copper telephone lines

ADSL is capable of providing up to 50 Mbps, and supports voice, video and data.

ADSL is the #1 Broadband Choice in the World with over 60% market share

ADSL is now available in every region of the world

What Is DSL? DSL (Digital Subscriber Line) is a

technology for bringing high-bandwidth information to homes and small businesses over ordinary copper telephone lines. DSL refers to different variations of DSL, such as ADSL, HDSL, and RADSL.

ADSL is one of the type of DSL Technology.

What Does ADSL mean?

Asymmetric - The data can flow faster in one direction than the other. Data transmission has faster downstream to the subscriber than upstream.

Digital - No type of communication is transferred in an analog method. All data is purely digital, and only at the end, modulated to be carried over the line.

Subscriber Line - The data is carried over a single twisted pair copper loop to the subscriber premises .

ADSL Standards:

ADSL Speed Factors: The distance from the local exchange The type and thickness of wires used The number and type of joins in the wire The proximity of the wire to other wires

carrying ADSL, ISDN and other non-voice signals

The proximity of the wires to radio transmitters.

Architecture:

Wireless ADSL Without any cable it provides broadband data transfer.

This service using at hotspots such as airports, hotels, shopping

centers, universities, conference halls etc.

If you have WLAN technology in your laptop, phone or etc. You

can use this service.

If you don not have this technology in your pc you can take a

card that has the wifi (wireless fidelity ) capability and fix it

to your pc than you can use this service.

Uses access point which is a wireless access device to spread

the ADSL connections.

Wireless ADSL Router

Advantages of ADSL Faster downloads compared to dial-up or ISDN.

No need for a second phone line - by allowing voice and data transfer at the same time (you can use the phone as normal while connected to the internet).

Because ADSL transfers data digitally it doesn't need to convert the data from digital to analogue and back again.

ADSL connections are Always on, which makes the usual long wait to connect a thing of the past. 

Limitations of ADSL ADSL connections are not available to

everyone, you need to be within 3 miles of an ADSL enabled exchange.The hardware costs can be quite significant as you will need a special ADSL modem and ADSL filters to use the service, most ISPs allow you to hire these items which can reduce the initial cost. Because ADSL connections are Always on you will need a firewall to protect your PC.

The limit for ADSL service is 18,000 feet (5,460 meters)

 At the extremes of the distance limits, ADSL customers may see speeds far below the promised maximums.

Some Other Types Of DSL

Symmetric DSL (SDSL) High-bit-rate DSL (HDSL) Very high bit-rate DSL (VDSL)

Conclusion From the presentation we came to

know the ADSL, its working mechanism , architecture, advantages and advantages.

THANK YOU…..!!

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