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AT&T DEFINITY 7200 series User Manual

Page 10

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CONTENTS

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LIST OF FIGURES

Figure 1-1. Analog-to-Digital Conversion

1-4

Figure 1-2. Transmission States for Voice Communication

1-8

Figure 1-3. Transmission States for Data Transmission

1-12

Figure 1-4. Time Slot

1-17

Figure 1-5. Alternating Mark Inversion

1-19

Figure 1-6. Example of B8ZS Line Coding

1-20

Figure 1-7. D4 Framing

1-24

Figure 1-8. The Extended Super Frame

1-26

Figure 1-9. T1 Trunk Multiplexing

1-30

Figure 1-10. Possible Multiplexed Connections

1-33

Figure 1-11. Statistical Multiplexing

1-34

Figure 2-1. Internal Dial Plan Interactions

2-9

Figure 2-2. AAR Processing

2-12

Figure 2-3. ARS Processing

2-15

Figure 4-1. Standalone MS/T Network

4-1

Figure 4-2. MS/T Coordinated Numbering

4-3

Figure 4-3. Dialing Patterns From Tributary or Satellite to Main

4-5

Figure 4-4. Dialing Patterns From Main to Satellite or Tributary

4-5

Figure 4-5. Dialing Patterns From Main to Tandem

4-6

Figure 4-6. Dialing Patterns From Satellite or Tributary to Tandem

4-6

Figure 5-1. Typical 2-Level Hierarchical Electronic Tandem Network (ETN)

Configuration 5-3

Figure 5-2. An Example of Intermachine Tie Trunk Usage (Overflow Routing)

5-4

Figure 5-3. Private Network Uniform Numbering Plan

5-7

Figure 5-4. Extension Number Portability Cluster Using Common RNXs

5-8

Figure 5-5. Feasible ETN/SDN Configuration

5-10

Figure 5-6. Call Flow SDN - to - ETN

5-11

Figure 5-7. Call Flow ETN - to - SDN

5-12

Figure 5-8. Centralized Attendant Service

5-13

Figure 6-1. Distributed Communications System (DCS) Cluster

6-1

Figure 6-2. Internally Connected DCS Signaling Channel Over a DS1

6-4