This document discusses accessing the internet via cable TV networks. It explains that a cable modem connects a PC to the coaxial cable that delivers TV channels, allowing high-speed internet access at 10 megabits per second. The cable modem attaches to the computer via Ethernet and converts signals for transmission over the cable network. It isolates TV and internet signals using a splitter at the system outlet. Accessing the internet via cable networks provides advantages like advanced high-speed access without requiring new software or cable infrastructure changes.

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.