1. | PSTN ISDN TDM | Presention By: ♠ Murat Irkkan ♠ Mert Kaptan

2. PSTN What is PSTN (Public Switched Network)? How Data is transferred over PSTN? How to connect net over PSTN?

3. Circuit - Switching 1. Real Time Voice Transmission 2. Point To Point Networks 3. Bandwidth is constant 4. Data Transmission PSTN & ISDN & TDM Circuit – Switching Network

4. Constant Bandwidth

5. What is PSTN? Circuit - Switching telephone network Carries analog voice Constant Bandwith

6. Data Transfer Over PSTN Digital lines between santrals E1 Tranks: 32 channels X 64Kbps 3 X E1 Trank Santral 1Santral 2 Users Digital Analog 32X3=96 calls

7. How to connect net over PSTN? Modem converts; Digital data to Analog voice 28 Kbps 56 Kbps

8. How to connect net over PSTN? Santral Digital Analog

9. ISDN What is ISDN (Integrated Services Digital Network)? How it works? Types of ISDN? What can be done by using ISDN? What type of network devices & settings are needed for the ISDN? What is BroadBand ISDN?

10. What is ISDN? Integrated Services Digital Network Allow digital transmission Support wide range of services over a channel

11. Services that ISDN supports Voice Calls Fax Transmission Data Transmission & Voice Linking to the internet Video Conferencing

12. How Does ISDN Works?

13. Types of ISDN ISDN BA / BRI Basic Access / Basic Rate Interface Formula:2B+1D For KOBI’s & Home Users ISDN PA / PRI Primary Access / Primary Rate Interface Formula:30B+1D For Internet Service Providers & Big Companies

14. Network Devices & Settings For ISDN Digital Line Network Terminator Max:8terminal ISDN Modem (Terminals) Same as Standart Modem Configuration

15. What Is BroadBand ISDN? Max 2MBits/Sec to 1GigaBits/Sec Related With ATM (Asynchronous Transfer Mode) Fiber Optics Using Atm Cell; 5Bytes48 Bytes HeadData

16. ATM != ATM (Asynchronous Transfer Mode) ATM !=

17. Advantages of ISDN Digital Service ~ Less Errors. Connection is fast. Higher bandwidth. Voice, data and video can all be sent over a single ISDN line.

18. TDM What is TDM (Time Division Multiplexing)? Theory of Time Division Multiplexing Differences between TDM and ATM

19. Time Division Multiplexing Continuous,compact and orderly data transfer Voice and image data transfer at the same time Constant bandwidth Secure connection

20. Theory of Time Division Multiplexing Channel A Channel B Channel C Sequential Channel A Channel B Channel C Time Channels A|B|C|A|B|C

21. TDM vs ATM

22. References www.teach-ict.com/as_a2/topics/telephone_systems/telephone_systems/ 30 MAY 2006 http://en.wikipedia.org/ http://en.wikipedia.org/ 30 MAY 2006

23. ◄ The End ► Presented By; ♠ Murat Irkkan ♠ Mert Kaptan

24. Any Questions? ” Are Wellcomed ”