DE20  ELECTRONIC SWITCHING SYSTEMS

 

1.         Introduction                                                                                                    8 hours

 

1.1               Introduction to Switching System.

1.2               Electronics System (ESS).

1.3               Computer Communication Network.

1.4               Types of Switching Systems.

1.5               Topology of CCN.

1.6               Centralized Switching and Hierarchies.

1.7               Functions of Telephone switching systems.

1.8               Basic Switching Center Mode.

1.9               State Transition Diagram.

1.10            Resource Sharing.

1.11            Introduction to traffic and queuing Theory.

 

            I [1, 2, 10 (10.1, 10.2, 10.3, 10.7, 10.8)]; II [3, 4]

 

2.         Signaling and Switching Techniques                                                              10 hours

 

2.1               Terminal and Local Signaling.

2.2               Introduction to manual and automatic switching.

2.3               Switching Elements.

2.4               CCS-7 Common channel Signaling System-7

2.5               Time Division Switches.

2.6               Switching for Digital Signaling.

2.7               DTMF Signaling.

 

           I [2, 3, 6]; II [7, 8] 

 

3.         Switching Arrangement                                                                                  5 hours

 

3.1               Single stage and multi-state switching Systems.

3.2               Conditional Selection.

3.3               Combined Step by Step and Conditional Switching.

 

            I [6]  

 

4.         Switching Networks                                                                                        8 hours

 

4.1               Single Stage, Two Stage and Three Stage Networks.

4.2               Non-Blocking Networks.

4.3               Triangular Networks and Multistage Networks.

4.4               Use of Mixing Stages.

4.5               Network and Channel Graphs.

4.6               Networks with Concentrators.

 

            I [4, 5, 9]; II [5]  

 

5.         Electronic Space Division Switching                                                              8 hours

 

5.1               Switching Centers.

5.2               Stored Program Control (SPC).

5.3               Centralized SPC.

5.4               Distributed SPC.

5.5               Enhanced Service CPU based Exchange.

 

           I [4]  

 

6.         Traffic Engineering                                                                                         7 hours

 

6.1               Network Traffic Load and Parameters.

6.2               Grade of Service.

6.3               Blocking Probability.

6.4               Incoming traffic and service time characterization.

 

           I [8 (8.1, 8.2, 8.3, 8.4)] 

 

7.         Telephone Network Organization                                                                  7 hours

 

7.1               Subscriber Loop System.

7.2               Switching Hierarchy and Routing.

7.3               Transmission Plan And Transmission Systems.

7.4               Common Channel Signaling.

 

           I [9 (9.1, 9.2, 9.3, 9.4, 9.9)]  

 

8.         Data Networks                                                                                                7 hours

 

8.1               Data Transmission.

8.2               Data Communication Architecture.

8.3               Link to link and end to end layers.

8.4               LAN.

 

            I [10 (10.1, 10.2, 10.3, 10.5)]

 

 


Text Books:

 

I           Viswanathan T. “ Telecommunication Switching Systems and Networks “,17th  

        printing Prentice Hall of India 2003, Delhi

 

II          J.E. Flood, “ Telecommunications Switching, Traffic & Networks” 1st edition  Pearson Education 2001, Delhi