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DE62 TELECOMMUNICATION SWITCHING SYSTEMS


Posted Date: 17-May-2009  Last Updated:   Category: Syllabus    
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Regulations and Syllabi for DIPIETE(ET) Examination 43
DE62 TELECOMMUNICATION SWITCHING SYSTEMS
UNIT I SWITCHING SYSTEMS 08 hrs Evolution of Telecommunications; Basics of a Switching System; Functions of a Switching System; Strowger Switching Components; Step by Step Switching; Design Parameters; 100 Line Switching System; 1000 Line Blocking Exchange; 10,000 Line Exchange; Crossbar Switching-Principle of Crossbar Switching; Crossbar Switch Configurations; Crosspoint Technology; Crossbar Exchange Organization; A General Trunking; Electronic Switching; Reed Electronic Systems; Digital Switching Systems. I (3.5, 3.10, 3.11, 3.12, 3.13); II (1.1, 1.3, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 3.3, 3.4, 3.5, 3.6) UNIT II TELECOMMUNICATIONS TRAFFIC 08 hrs Introduction; The Unit of Traffic; Congestion; Traffic Measurement; A Mathematical Model; Lost-Call Systems-Theory; Traffic Performance; Loss Systems in Tandem; Use of Traffic Tables; Queuing Systems-The Second Erlang Distribution; Probability of Delay; Finite Queue Capacity; Some Other Useful Results; Systems with a Single Server; Queues in Tandem; Delay Tables; Applications of Delay Formulae. I (4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7) UNIT III SWITCHING NETWORKS 08 hrs Introduction; Single Stage Networks; Gradings-Principle; Design of Progressive Gradings; Other Forms of Grading; Traffic Capacity of Gradings; Application of Gradings; Link Systems-General, Two Stage Networks; Three Stage Networks; Four Stage Networks; Discussion; Grades of Service of Link Systems. I (5.1, 5.2, 5.3, 5.4, 5.5) UNIT IV TIME DIVISION SWITCHING 07 hrs Basic Time Division Space Switching; Basic Time Division Time Switching; Time Multiplexed Space Switching; Time Multiplexed Time Switching; Combination Switching; Three Stage Combination Switching. II (6.1, 6.2, 6.3, 6.4, 6.5, 6.6) UNIT V CONTROL OF SWITCHING SYSTEMS 07 hrs Introduction; Call Processing Functions-Sequence of Operations; Signal Exchanges; State Transition Diagrams; Common Control; Reliability; Availability and Security; Stored Program Control. I (7.1, 7.2, 7.3, 7.4, 7.5) UNIT VI SIGNALLING 08 hrs Introduction; Customer Line Signaling; Audio Frequency Junctions and Trunk Circuits; FDM Carrier Systems-Outband Signaling; Inband (VF) Signaling; PCM Signaling; Inter Register Signaling; Common Channel Signaling Principles-General Signaling Networks; CCITT Signaling System Number 6; CCITT Signaling System Number 7; The High Level Data Link Control Protocol; Signal Units; The Signaling Information Field. I (8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9)
Regulations and Syllabi for DIPIETE(ET) Examination 44
UNIT VII PACKET SWITCHING 07 hrs Introduction; Statistical Multiplexing; Local Area and Wide Area Networks-Bus Networks; Ring Networks; Comparison of Bus and Ring Networks; Optical Fiber Networks; Large Scale Networks-General; Datagrams and Virtual Circuits; Routing; Flow Control; Standards; Frame Relay; Broadband Networks-General; The Asynchronous Transfer Mode; ATM Switches. I (9.1, 9.2, 9.3, 9.4, 9.5) UNIT VIII NETWORKS 07 hrs Introduction; Analog Networks; Integrated Digital Networks; Integrated Services Digital Networks; Cellular Radio Networks; Intelligent Networks; Private Networks; Charging; Routing-General, Automatic Alternative Routing. I (10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.9, 10.10) Text Books:
I. Telecommunications Switching, Traffic and Networks, J.E.Flood, Pearson Education, 2006.
II. Telecommunication Switching Systems and Networks, Thiagarajan Viswanathan, Prentice Hall of India Pvt. Ltd, 2006.

Reference Book:
1. Digital Telephony, John C Bellamy, John Wiley International Student Edition.

Note: Students have to answer FIVE full questions out of EIGHT questions to be set from each unit carrying 16 marks.


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