1. BAPURAO DESHMUKH COLLEGE OF
ENGINEERING, SEWAGRAM
Topic:- Internet Access Via Cable TV Network
Guided By:-
Prof. A.A.Kolpyakwar
Submitted By:-
Pranay K. Kumbhalkar

2. Contents :
 Introduction
 How Access Internet using TV Cable Network
 Cable Modem
 Connection
 Work Of Cable Modem
 Isolation of TV & PC
 Ethernet over Coaxial Adapter
 Hybrid Access System
 Advantages & Disadvantages
 Applications
 Conclusion

3. INTRODUCTION
 Internet data can be transferred through Cable
networks wired to the user computer.
 Accessing the Internet at 10 megabits per second.
 A cable modem connects to a PC using the same
coaxial cable that brings all channels to your
television.

4. How access the Internet using the
Cable Network
 Use the dial-up telephone services provided by your Cable
Company in conjunction with a modem or ISDN adapter.
 To use a Cable modem.

5. Cable Modem
 A "Cable Modem" is a device that allows high-speed
access to the Internet via a cable TV (CATV) network.
 The cable modem attaches to computer through an
Ethernet Network Interface Card.
 It takes a signal from the computer and converts it for
transmission over the cable network.

6. How does it connect
 Ethernet 10BaseT is emerging as the most predominant
method.

7. How Cable Modem work
 Your Cable Company supplies you with a connection to your
home which in turn is connected to a splitter box.
 One spur from the splitter box is connected to your TV through
a TV Adapter, the other being connected to your Cable
Modem, which in turn is connected to your computer through
an Ethernet connection.
 Cable modems can be part modem, part tuner, part encryption /
decryption device, part bridge, part router, part NIC card and
part Ethernet hub.

9. Isolation of TV & PC
 At the connecting point the feeding of the data into the
TV cable network.
 The modem with an Ethernet interface.
 They will be connected by means of a splitter at the
system outlet of the subscriber.
 The system uses the frequency range from 5 MHz until
30 MHz, which is not used from TV programs.

10. Ethernet over Coax Adapter
 Ethernet Coaxial Adapter :-

11. Advantages
 Advanced High Speed Internet Access Service.
 No new software is required.
 No reconstruction of the cable system necessary.
 Use Of free frequency range from 3 to 5 MHz without
TV program reorganization.
 Integration of the modem in the Billing System via
router, accounting per space of time or volume
possible.
 Components and amplifiers must have only return
path ability.

12. Disadvantages
 Cable connections are not available in every
neighborhood, Because cable connections are ‘Always
on,’ one needs a firewall and activation of other
security features so as to protect the computer.

13. Applications
 Connect set-top boxes, personal computers, game
consoles, broadband modems etc. to your home
network instantly.
 Add high-speed internet, digital voice and video
access to any room with a coaxial TV cable.
 Ideal for homes, apartment buildings or hotels seeking
to add high-speed.
 Plug-n-Play specifications.
 Hospital & At our residence.

14. Conclusion
 Cable TV has a strong reach to the homes and
therefore offering the Internet through cable be a
scope for furthering the growth of internet usage in
the homes.
 The cable is an alternative medium for delivering
the Internet Services in the US, there are a million
homes with cable modems, enabling the high-
speed internet access over cable.