1. Wireline-Broadband

2. BSNL/ BROADBAND /BATHINDA2 What is Broadband ? As per recent Broadband Policy of GOI, access rate over 256 Kbps will be considered as Broadband access

3. BSNL/ BROADBAND /BATHINDA3 Definition of broadband The “Broadband Policy 2004” defines the broadband connectivity as “An ‘always-on’ data connection that is able to support interactive services including Internet access at high speed and has the capability of the minimum download speed of 256 kilo bits per second (kbps) to an individual subscriber from the Point Of Presence (POP) of the service provider intending to provide Broadband service where multiple such individual Broadband connections are aggregated and the subscriber is able to access these interactive services including the Internet through this POP

4. BSNL/ BROADBAND /BATHINDA4 Telecom Network Switching Network Transmission Network Data Network Access Network

5. BSNL/ BROADBAND /BATHINDA5 Access Network There are four options: Copper Based Fiber Based Radio Based Hybrid – like HFC

6. BSNL/ BROADBAND /BATHINDA6 Copper Based Access Traditional – 4 Khz or 64 Kbps Or Broadband with xDSL technologies like HDSL, ADSL, SDSL, VDSL HDSL, ADSL, SDSL, VDSL Hybrid Fiber Coaxial (HFC) CaTV Power Line

7. Digital Subscriber Line (xDSL)

8. BSNL/ BROADBAND /BATHINDA8 Types of DSL ( Or xDSL ) X == H, A, S, I, V HDSL--High bit rate Digital Subscriber Line ADSL--Asymmetric bit rate DSL SDSL--Symmetrical DSL IDSL---Intermediate bit rate DSL VDSL--Very high bit rate asymmetric DSL

9. BSNL/ BROADBAND /BATHINDA9 xDSL-Digital Subscriber Lines DSL Technology xDSL Family Tree ADSL HDSL VDSL IDSL xDSL Modulation Techniques

10. BSNL/ BROADBAND /BATHINDA10 MODEM MODEM is an acronym for MOdulation/DEModulation Enables two computers to communicate over PSTN Modem Core Network Existing Copper V.34 ( Up to 28.8 Kbps) V.34 bis ( Up to 33.6 Kbps) Newer ( Up to 56.6 Kbps)

11. BSNL/ BROADBAND /BATHINDA11 DSL Technology DSL may offer more than 100 times the network performance of a traditional analog modem Precise speed of a connection depends upon the type of DSL employed DSL uses the same telephone line as traditional modem DSL remains always-on all the time Customer no longer need to physically dial up to the ISP to “log in to the internet”

12. BSNL/ BROADBAND /BATHINDA12 DSL Technology DSL can also be implemented with PPoE (Point to Point Protocol over Ethernet) that does not support always-on, but a DSL router can automate the connection process

13. BSNL/ BROADBAND /BATHINDA13 xDSL Family Tree xDSL Symmetric DSL Provide identical data rates upstream & downstream Asymmetric DSL Provide relatively lower rates upstream but higher rates downstream Four main variations of xDSL exist: ADSL-Asymmetrical Digital Sub’s Line HDSL-High bit/data rate Digital Sub’s Line VDSL-Very-high-data-rate Digital Sub’s Line IDSL-ISDN Digital Sub’s Line

14. BSNL/ BROADBAND /BATHINDA14 ADSL Asymmetric Digital Subscriber Line Used for applications which require greater download bandwidth but require relatively little in opposite direction like Web browsing; File downloads An ADSL circuit connects an ADSL modem on each end of a twisted pair telephone line creating three information channels A high speed downstream channel A medium speed duplex channel A basic telephone service channel

15. BSNL/ BROADBAND /BATHINDA15 ADSL The basic telephone service channel is split off from the digital modem by splitter at client site Allows simultaneous access to the line by the telephone and the computer In case of power/ADSL failure, data transmission is lost but basic telephone service will be operational Provides 16-640 kbps upstream 1.5-9 mbps downstream Can work up to a distance of 3.7 to 5.5 kms depending upon the speed required

16. BSNL/ BROADBAND /BATHINDA16 Data Rate - Wire Size – Distance Customers beyond these distances can be reached with fiber based DLC systems ADSL Data RateWire SizeDistance 1.5-2.0 Mbps0.5 mm18000 Feet5.5 Kms 1.5-2.0 Mbps0.4 mm15000 Feet4.6 Kms 6.1 Mbps0.5 mm12000 Feet3.7 Kms 6.1 Mbps0.4 mm9000 Feet2.7 Kms

17. BSNL/ BROADBAND /BATHINDA17 ADSL Deployement Today SPLITTERS Central Office Home/Office ADSL CPE Curb ADSL up to 5Km Splitter DSLAM Data switch Voice Switch

18. BSNL/ BROADBAND /BATHINDA18 DSL Access Multiplexer (DSLAM) The DSL Access Multiplexer, popularly known as DSLAM, is employed by the Telecom Companies to code the subscriber line with the broadband data content. Once the ADSL copper line reaches the customer, some customer premises equipment (CPE) has to be employed to separate the voice and data signals. In many cases the Splitter function is combined within the DSL Modem CPE equipment, which is also known sometimes as a ‘Set-top Box’.

19. BSNL/ BROADBAND /BATHINDA19 Features Surf the Internet at a blinding speed of 256 Kbps and above upto 2 Mbps. This is at least 4.5 times and upto 35 times faster than a dial-up connection. Always-On Internet connection for 24 hrs 365 days. Talk on the phone and simultaneously surf the Internet. No separate phone line is needed – you can have broadband connection on your existing phone line. You don’t have to pay for Internet phone call charges at all.

20. BSNL/ BROADBAND /BATHINDA20 ADSL Applications High speed Internet access Telemedicine Tele education Home Office------ Tele-working Home shopping Video on Demand TV/Video broadcast Normal Phone/Fax

21. BSNL/ BROADBAND /BATHINDA21 What equipments are needed for a connection ? You only need to have your computer with a Network Interface Card (NIC) with 10/100 Mbps Ethernet port and RJ45 socket. We will install a CPE (short form of Customer Premise Equipment - consisting of a splitter and an ADSL modem) and connect broadband Internet to your computer and also phone line to your phone. You may get CPE free of cost under certain conditions.

22. BSNL/ BROADBAND /BATHINDA22 What is Always-On service ? ‘Always-On’ means that the broadband sets up a permanent connection to the Internet that lets you access the Internet as soon as you switch on the computer and the CPE and do an instant log-in with your user name and password.

23. BSNL/ BROADBAND /BATHINDA23

24. BSNL/ BROADBAND /BATHINDA24 MODEM INSTALLATION

25. BSNL/ BROADBAND /BATHINDA25