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Unit 2

Modulation and Transmission Schemes. Unit 2. Objectives. Describe Analog communication, its principles and service deployments Describe Basic Analog Signal Transmission Technique Compare and contrast Amplitude, wavelength and frequency Describe how a D to A converter works

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Unit 2

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  1. Modulation and Transmission Schemes Unit 2

  2. Objectives • Describe Analog communication, its principles and service deployments • Describe Basic Analog Signal Transmission Technique • Compare and contrast Amplitude, wavelength and frequency • Describe how a D to A converter works • Describe tip and ring circuits • Describe T1 physical, framing and line-coding schemes • Provide T1 Line-Coding Schemes • Describe T1 Framing and formatting • Compare and contrast T3 and E3 technology • Compare and contrast synchronous and asynchronous transmissions • Draw a T3 Frame • Describe ISDN networks and their technical specifications • Explain the purpose of a Network Interface Device and the ISDN reference Points • List the current ISDN Specifications • Describe DSL history and encoding technologies • Explain the history of DSL • Describe how QAM operates and the possible states and bitstreams for QAM

  3. Basic Analog Signal Transmission

  4. Analog Signal Stream

  5. Amplitude, Wavelength and Frequency

  6. Analog Signal with Noise

  7. NEXT and FEXT pm a Local LOOP

  8. A/D Conversion Example

  9. Deployment of an IDLC in a Neighborhood

  10. North American Digital Hierarchy DS1 T2 Mux (M1-2) DS2 T1 Mux (Chan Bank) T3 Mux (M2-3) 24 DS0 DS1 DS2 DS1 T4 Mux (M3-4) DS2 DS1 DS3 DS2 1C Mux DS2 DS3 48 DS0 DS2 DS4 DS1C DS2 DS3 Level # Voice bps DS0 1 64k DS1 24 1.544M DS1c 48 3.152M DS2 96 6.312M DS3 672 44.736M DS4 4032 274.176M DS3 T3 Mux (M1-3) DS3 28 DS1 DS3 North American Hierarchy

  11. TDM

  12. T1 Connector Pinouts

  13. Various Line Coding Schemes

  14. Channelized T3

  15. M12 Multiplexing

  16. Frame and Sub Frame Alignment

  17. Bit Stuffing

  18. Circuit Switching

  19. High Level Overview of ISDN Local LOOP

  20. ISDN Reference Point

  21. QAM

  22. States and Bitstreams for QAM

  23. CAP Frequency Spectrum for ADSL

  24. Frequency Spectrum for ADLS

  25. DSL Components

  26. Integrated POTS Splitter

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