Download Previous Year Diploma Paper of Communication System-II CS-2 5th Semester ECE May 2019 Diploma Solved Paper
Communication System-2 5th Semester ECE May 2019 Diploma Paper
SECTION-A
Q1. a) Fill in the Blanks. 15×1=15
a. IC16450 is a UART (Universal Asynchronous Receiver/Transmitter).
b. PBX Stands for Private Branch Exchange.
c. ICW Stands for _____
d. A Protocol is a set of rules that governs data communication.
e. In TDM, frame is divided into Time Slots.
f. The main practical problem of FDM is the Crosstalk between channels.
g. In Asynchronous Serial transmission the start and stop bits are also transmitted.
h. Crosstalk is the interference of signal in adjacent channel.
i. ASCII stands for American Standard Code for Information Interchange.
j. OOK stands for On-Off Keying.
SECTION-B
Q2. Attempt any five questions. 5×6=30
i. What is the difference between7 bit ASCII and EBCDIC code?
ii. Explain the pin out of RS232 interface.
iii. Write short note on the following.
a) Space division multiplexing
b) Message switching
iv. What do you understand by PBX?
v. Explain the synchronous and asynchronous transmission.
vi. With the help of block diagram, explain telemetry system.
vii. Explain the basic need and function of modem. With the help of diagram, explain modem architecture
SECTION-C
Q3. Attempt any three questions. 3×10=30
i. What is facsimile communication? list down its applications.
ii. With the help of block diagram explain digital exchange.
iii. Draw and explain UART.
iv. What is the principle of ASK? Explain its generation and detection.
v. Write short note on any two:
(a) CRC (b) TDM (c) Echo suppressors.
IC16450 is a UART (Universal Asynchronous Receiver/Transmitter).
PBX stands for Private Branch Exchange.
ICW Stands for _____
A Protocol is a set of rules that governs data communication.
In TDM, frame is divided into Time Slots.
The main practical problem of FDM is the Crosstalk between channels.
In Asynchronous Serial transmission the start and stop bits are also transmitted.
Crosstalk is the interference of signal in adjacent channel.
ASCII stands for American Standard Code for Information Interchange.
OOK stands for On-Off Keying.
CS-2 5th Semester ECE May 2019 Diploma Solved Paper Click Here
Difference between7 bit ASCII and EBCDIC code
Pin out of RS232 interface.
a) Space division multiplexing
Message switching
Synchronous and asynchronous transmission.
Explain telemetry system.
Basic need and function of modem
CS-2 5th Semester ECE May 2019 Diploma Solved Paper Click Here
FAX its applications.
Explain block diagram of USART.
Short note on PSTN hierarchy.
a. Echo suppressors.
b. Echo cancellers.
Types of communication channels.
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