Internet Security

INTERNET BROADBAND

Definition of Broadband
An always-on data connection that is able to abateure interactive armed services including lucre access. ? concord to Broadband insurance 2004,has the capability of the minimum download press forward of 256 kilo bits per sustain (kbps) to an individual subscriber from the Point Of Presence (POP) of the service provider. ?According to New Telecom policy 2011, minimum download speed should be 512 kbps. ?It provides Internet, IPTV and VoIP simultaneously along with basic teleph hotshot service.

ITTM, Delhi

ITTM, Delhi

ITTM, Delhi

ITTM, Delhi
What is ADSL ?
hunched digital subscriber line (ADSL) is emerging as the best solution to high-speed Internet access technology. ADSL matches the asymmetric image of Internet traffic with speeds of up to 8 Mb/s downstream from the network to the end user, and up to 640 kb/s upstream from the end user to the network. Because ADSL can transmit twain voice and data simultaneously over an existing, single blur pair up to 5.5 KM long, it is the perfect solution for service providers to meet the increasing customer demand for faster Internet access. With its amazing speed and economical use of the installed base of strapper cable, ADSL keeps the service cost small-scale for both service providers and end users.



An ADSL system consists of the following components: ADSL transceiver unit-central office (ATU-C), overly referred to as DSLAM ADSL transceiver unit-remote (ATU-R), also referred to as an ADSL modem Splitter low pass filter for separating POTS from ADSL digital subscriber line access multiplexer (DSLAM) Multiplexes many ADSL copper lines into one Ethernet uplink fiber and include the splitter in ATU-C Frame.

Splitter- a low pass filter.

ITTM, Delhi

Freq. spectrum used in Broadband
ADSL Bandwidth

UPSTREAM

DOWNSTREAM

4 KHz

26 KHz

138 KHz

1 . 1 MHz

ITTM, Delhi
Modulation Techniques
Traditional plain old promise service (POTS) uses a...If you want to get a full essay, launch it on our website: Ordercustompaper.com



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