a)The Channel is a key component to consider in allcommunications systems.Give two examples of a channel commonly used incommunications systems, and for each, the keyproperties that can impact transmission.Compare twisted-pair and fibre-optic wired channels.Explain how the use of differential signals can be usedto improve the signal to noise ratio in a twisted pairchannel.i)ii)

Two examples of commonly used channels in communication systems are 1-Wired cables 2-wireless radio…

a) The Channel is a key component to consider in all systems. communications i) Give two examples of a channel commonly used in communications systems, and for each, the key properties that can impact transmission. ii) Compare twisted-pair and fibre-optic wired channels. Explain how the use of differential signals can be used to improve the signal to noise ratio in a twisted pair channel.

a) The Channel is a key component to consider in all systems. communications i) Give two examples of a channel commonly used in communications systems, and for each, the key properties that can impact transmission. ii) Compare twisted-pair and fibre-optic wired channels. Explain how the use of differential signals can be used to improve the signal to noise ratio in a twisted pair channel.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter17: Commercial And Industrial Air-conditioning Control Systems

Section: Chapter Questions

Problem 25RQ

See similar textbooks

Similar questions

3. Category 5 cable, commonly referred to as CAT-5, is a twisted pair cable for computer networks. The cable standard provides performance of up to 100 MHz. We would like to transmit information over a CAT-5 twisted pair cable at 500 megabits per second (Mbps). (a) Is a signal-to-noise ratio (SNR) of 30 dB adequate to transmit 500 Mbps? (b) What is the SNR required to just adequately transmit at 500 Mbps? Express your answer in decibels for the SNR
Explain block schematic of TDM?
9. The term “M-ary” in M-ary modulation derives from the word ___________.A. binaryB. baudC. bitD. bandwidth
Design a system that converts a twisted pair line local loop to a 17 channel link between a security estate and a local switch(POTS)
(b) In a junction of road instaled with traffic light, the sensor circuit with capabilties to detect a vehicle is planned to be buikl. By using the a.c bridge, discuss types of ac bridge that can be used for that purpose. Explain the concept using bock diagram of how the circut is connected and used with microprocessor.
(b) Figure Q.4b shows an Adder/Subtractor circuit implemented using Adder Q. The delay for XOR = 2t, OR = AND=1t and cascadable full adder is used for ripple carry adder. Assume inputs X, Y and ADDSUB have arrived at Ot. Analyze the critical path delay for the circuit if:- X[7.4] YI7.4] 4. A[3.0] A[3.0] lo"cle C4 C8 C4 Adder Q co C4 Adder Q co ADDSUB Sum(3.0] Sum[3.0] Z17.4] Figure Q.4b i. Adder Q is a 4-bit Ripple-Carry Adder. Show your analysis in Table Q.4b.i. ii. Adder Q is a 4-bit Carry-Lookahead Adder. Show your analysis in Table Q.4b.ii. Table Q.4b.i Table Q.4b.ii To Node Delay To Node Delay Z3 Z3 С4 С4 Z7 Z7 C8 C8 Page 14 of 21
a. Assume that a channel occupies a bandwidth of 250 kHz. We need to multiplex six channels with guard bands of 400 Hz using FDM. Calculate the minimum bandwidth of the link to prevent interference. b. Explain the analog carrier system used by telephone companies. c. Describe two other applications that use FDM other than analog carrier system. d. Four channels are multiplexed using TDM. Each creating 440 characters per second. The interleaved unit is two characters, and two synchronizing bits are added to each frame. Based on this information, find: The data rate of each source, i. ii. the frame rate, ii. the duration of each frame, and iv. the size of a frame in bits. v. the data rate of the link
Consider the following : (1) Twisted pair cables (2) Microwaves and Satellite Signals (3) Repeaters (4) Analog Transmissions (5) Fiber optics Which of the above is consider as (a) signal transmission medium is data communications? A. (1) and (5) B. (1) and (2) C. (1) (2) and (5) D. (1) (2) (3) and (5)
Telecommunications & Network Describe/draw each applicable term: 1. Draw Encoder,Decoder, Multipleser and their application. 2. Asynchronous and synchronous.
4. What do you mean by over modulation?
Which of the following multiple access techniques are used by second generation cellular systems? a) FDMA/FDD and TDMA/FDD b) TDMA/FDD and CDMA/FDD c) FDMA/FDD and CDMA/FDD d) FDMA/FDD only
5. What is a borrowing strategy in fixed channel assignments? a) Borrowing channels from neighbouring cell b) Borrowing channels from neighbouring cluster c) Borrowing channels from same cell d) Borrowing channels from other base station in same cell