© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 2 Slide 1 Unit 2...
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![Page 1: © 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 2 Slide 1 Unit 2 Modulation and Transmission Schemes.](https://reader033.fdocuments.in/reader033/viewer/2022050714/56649f505503460f94c7212d/html5/thumbnails/1.jpg)
© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 2 Slide 1
Unit 2
Modulation and Transmission Schemes
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 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
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 3
Basic Analog Signal Transmission
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 4
Analog Signal Stream
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 5
Amplitude, Wavelength and Frequency
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 6
Analog Signal with Noise
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 7
NEXT and FEXT pm a Local LOOP
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 8
A/D Conversion Example
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 9
Deployment of an IDLC in a Neighborhood
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 10
North American Digital Hierarchy
24DS0 T2
Mux(M1-2)
DS1 DS2
T3Mux
(M2-3)DS3
DS1
DS1
DS1
DS2
DS2
DS2
DS2
DS2DS2 T4
Mux(M3-4)
DS3
DS3
DS3
DS3
DS3
DS4
T3Mux
(M1-3)28DS1
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 North American Hierarchy
48DS0
T1Mux
(ChanBank)
1CMux DS1C
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 11
TDM
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 12
T1 Connector Pinouts
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 13
Various Line Coding Schemes
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 14
Channelized T3
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 15
M12 Multiplexing
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 16
Frame and Sub Frame Alignment
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 17
Bit Stuffing
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 18
Circuit Switching
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 19
High Level Overview of ISDN Local LOOP
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 20
ISDN Reference Point
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 21
QAM
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 22
States and Bitstreams for QAM Amplitude Phase Bit Pattern
1 0 000
2 0 001
1 90 010
2 90 011
1 180 100
2 180 101
1 270 110
2 270 111
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 23
CAP Frequency Spectrum for ADSL
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 24
Frequency Spectrum for ADLS
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 25
DSL Components
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© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 2 Slide 26
Integrated POTS Splitter