تقرير حول كتاب Digital Switching Systems او التبديل الرقمي




هذا الكتاب محاولة لتلبية طلب الاخ hisham كتاب في circuit switching او التبديل بالدوائر ونرجو ان يوفقة الله ويوفقنا ونكون اختارنا له الكتاب المناسب ومما يشرفنا ان مؤلف الكتاب عربي  ومسلم وهو الدكتور سيد رأفت علي Syed Riffat Ali



Chapter 1:


Switching System Fundamentals: Central office linkages, switching system hierarchy building blocks of digital switching system,and basic call processing.



Chapter 2:

Communications and Control: Levels of control, basic functionalities of digital switch subsystems, control architectures, multiplexed highways, switching fabric, programmable junctors, network redundancy.



 Chapter 3:



Reliability Modeling: Downtimes in digital switching systems, reliability assessment techniques, Markov models, failure models,and sensitivity analysis.
Chapter 4:


Switching System Reliability Analysis: Analysis of centralprocessor community, clock subsystem, network controller subsystem, switching network, line and trunk downtimes, call cutoffs, ineffective machine attempts, and partial downtimes.



Chapter 5:

Digital Switching Software: Software architecture, operating systems, database management, digital switching system software classification, call models, software linkages during a call, and feature interaction.
Chapter 6:

 Quality Analysis of Switching System Software: Life cycle of switching system software, software development, a methodology for assessing switching software quality, software testing, CMM, and other models.



Chapter 7:

Maintenance of Digital Switching Systems: Interfaces of central office, system outage causes, software patches, generic program upgrade, problem reporting, firmware deployment, maintainability metrics, a strategy for improving software quality, and defect analysis.



 Chapter 8:

Analysis of Networked Switching Systems: Switching in anetworked environment, network reliability requirements, Markov model of a hypothetical STP, dependence of new technologies on digital switch, ISDN, AIN, and future trends in digital switching systems.
Chapter 9:

 A Generic Digital Switching System Model: Hardware architectures of a central processor, network control processors, interface controllers, interface modules, software architecture, recovery strategy, calls through the switching system, and analysis report.




 Chapter 10:


Major Digital Switching Systems in the North AmericanNetwork: High-level hardware and software architectures.




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