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Digital Switching Control Architectures : Telecommunications Library - Giuseppe Fantauzzi

Digital Switching Control Architectures

Telecommunications Library

Hardcover

Published: 19th September 1990
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An introduction to telephone exchange software, its functions and architectures. With continuous reference to the problems and realities of existing systems, this book analyzes hardware and software architectures adopted for the control of telecommunication switching exchanges.

Prefacep. xi
Functional Structure of Digital Switching Exchangesp. 1
Introductionp. 1
Switching Exchanges and Computersp. 1
A Canonical Functional Model for the Switching Exchangesp. 7
Exchange Terminations for Analog Subscriber Lines (B.O.R.S.C.H.T.)p. 13
Basic Rate Interface Exchange Terminations for ISDN Subscribersp. 16
Exchange Terminations for Analog Trunksp. 18
PCM Line Exchange Terminationsp. 20
Exchange Terminations for Common Signaling Channelsp. 25
Exchange Terminations for Data Channelsp. 28
ISDN Primary Rate Interfacep. 28
Circuit-Switching Matrixp. 29
Packet Switchingp. 31
Testing Devicesp. 32
Intelligent Networks and Additional Subscriber Servicesp. 34
Conclusionsp. 35
An Example of Switching Matricesp. 36
Referencesp. 40
Application Software for Telephone Switching Exchangesp. 41
Introductionp. 41
Signaling Preprocessing and Postprocessingp. 44
Subscriber Line Signalingp. 46
Register Signalingp. 49
Common Channel Signalingp. 50
Data Linksp. 55
Signaling for ISDN Lines and for X. 75 Packet-Switching Linesp. 58
Switching Matrixp. 61
Data Processing Peripheralsp. 62
Testing Devicesp. 63
Circuit-Switched Automatic Callsp. 64
Main Processesp. 64
Routingp. 68
Interworkingp. 73
Chargingp. 76
Semiautomatic Circuit-Switched Callsp. 78
Tickets and Filesp. 79
Incoming Call Queuesp. 80
Operator Servicesp. 82
Ticket Filesp. 84
Application Activities for Semiautomatic Trafficp. 86
Packet Switchingp. 89
Packet-Switching Functionsp. 89
Packet-Switching Application Softwarep. 104
Operation and Maintenancep. 108
Operation Functionsp. 109
Maintenance Functionsp. 111
Person-Machine Interactionsp. 113
Operation Softwarep. 115
Maintenance Softwarep. 119
Person-Machine Interaction Softwarep. 121
Measuring Proceduresp. 123
Conclusionsp. 126
Alternative Architectures of Digital Switching Systemsp. 129
Introductionp. 129
Architectures Using Monolithic and Centralized Common Controlp. 130
Regionalized Common Controlsp. 133
Service Computersp. 137
Segmentation of the Central Controlp. 140
Exploded Architecture for Common Controls: The Case of System 12p. 145
Modular Exchanges Implemented as Complete, Lossless Networks of Autonomous Switchesp. 148
Networks of Elementary Exchanges Connected by Structures Operating in Circuit and Message Modep. 152
Conclusionsp. 156
Referencesp. 157
Redundant Architectures and Software Qualityp. 159
Introductionp. 159
Tightly Coupled, Microsynchronized, Central Controlsp. 161
An SDL Architecture for the Software of Switching Exchangesp. 168
Loosely Coupled Macrosynchronous Controlsp. 175
Central Control with Common Memoryp. 181
Regional Processorsp. 188
Service Computersp. 189
Software Qualityp. 192
Conclusionsp. 197
Referencesp. 199
Indexp. 201
The Authorp. 207
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780890064528
ISBN-10: 0890064520
Series: Telecommunications Library
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 224
Published: 19th September 1990
Publisher: Artech House Publishers
Country of Publication: US
Dimensions (cm): 22.9 x 15.2  x 1.5
Weight (kg): 0.5