1. INTERNET ACCESS
VIA
CABLE TV NETWORK
By Upender Upr

2. Contents
 Introduction
 How to Access Internet via Cable
Network
 Cable Modem
 Work Of Cable Modem
 Hybrid Adapter
 Support for Multiple PCs
 Advantages & Disadvantages
 Conclusion

3. INTRODUCTION
 Internet is a networks of network(Global
n/w)
 A cable modem connects to a PC using
the same coaxial cable that brings all
channels to your television.
 India has a cable penetration of 80 million
homes, offering a vast network for control
the internet access.

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.
 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 Is 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. Splitter Box and TV Adapter
 Hybrid Adapter :-

10. Support For Multiple PCs
 A Cable Modem can provide the
Internet access to multiple PCs, if they
are connected via LAN.
 Using Ethernet hub or Router.

11. Advantages
 High-Speed Internet Access
 High Availability
 High bandwidth to low cost
 No new software is required
 Always on Connectivity
 No reconstruction of cable system is
required

12. Limitations
 Traffic congestion on the net
 Higher security risk than dialup
connections
 Always on Connectivity
 Usually tied with cable TV subscription

13. 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.
 In future this technology will implemented
by india.

14. Thank
You!!