SRM University 2007 B.Tech Information Technology IT200 - TELECOMMUNICATION SYSTEMS - Question Paper

19.What is Sidetone and What is the purpose of Sidetone?
20.Why a Station Equipment must be registered with the FCC?
21.How are Central office lines accessed by a Keysystem?
22. How are Central office lines accessed by a Hybrid Keysystem?
23. How are Central office lines accessed by a CBX?
24.What is a varistor & Why is a Varistor used in the Telephone?
25.What do you mean by Hookswitch?
26.Define Station Equipment.
27.Define Ringer.
28.What is Proprietary Telephone?
29.What is Ring Detector?
30.What is Straight-Line Ringer?


31.What is Superimposed Ringer?
32.What is Tuned Ringer?
33.What do you mean by 2500 Telephone set?
34.Define UART.
35.Define Wide Area Toll Service(WATS).
36.What is Multiplexing in Telecommunication industry?
37.What are the various kinds of Multiplexing?
38.What are the differences ranging from FDM,TDM,SDM?
39.Define Software described Network( SDN).
40.What is Centrex?
41.What do you mean by Customer given Equipment(CPE)?
42.What is Computer Telephony Integrated Systems(CTI)?


Ten Marks:

1. Differentiate in depth about 500(or rotary dial),2500(orDTMF),feature phone & PBX proprietary telephone sets with relevant diagrams.
2. Describe about telephone circuit and its working with relevant diagrams.
3. Explain about Keysystems in detail.
4. Explain about CBX in detail.
5. Explain in detail about system features & station features of PBX.
6. Explain in detail about personal computers.
7. Explain with relevant points & diagrams FDM & TDM.
8. discuss how groups, subgroups & master groups are formed.
9. Explain about North American DS1 system
10. discuss about T1 carrier system.


Unit-III

Two Marks:

1. describe Communication Protocol.
2.What is transceiver?
3.What is Transducer?
4.What is Pulse code Modulation?
5.What are the standards or methods used to convert analog signals into digital signals?
6.What are the various digital data coding techniques?
7.What is AMI and how the digits are represented in AMI?
8.Explain the Nonreturn to Zero (NRZ) coding Technique.
9. discuss the Nonreturn to Zero Invert (NRI) coding Technique
10. discuss the Manchester coding Technique
11. discuss the Differential Manchester coding Technique
12.What is T1 carrier System?
13.What is ASDL?
14.What is crosstalk?When it occurs?
15.What is inductive-capacitive battery feed circuit?

Earning:   Approval pending.