Half-duplex (HDx) is a telecommunication system which is: a. half digital and half analog; b. half wire-line and half-wireless; c. unconditionally two-way; d. half two-wire and half four-wire; e. two-way with alternation.
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- Discuss Telecommunication Engineering, explaining all its key components and how telephone call is established from party A to party B. Outline every process involved(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 21Photos - Screenshot (46).png 72% / Fullscreen 1.The term SMA represents. 2.F type connectors are used in CCTV systems [True/False]. 3.RG 59 coaxial cable is 10base 5 coaxial cable. [True/False] 4.The segment length for RG11coaxial cable in SAT TV is 5.The segment length for twisted pair cable is 6.UHF connectors are used in public address systems [True/False]. 7.RG 58 thin coaxial cable is 10base 5 coaxial cable. [True/False] 8.The segment length for coaxial cable is 9.The segment length for fiber optic cable is 10.In fiber optics type of signal flows. 10:09 13/12/2021
- In time the use of the ________ became the more desirable approach because an important parameter of the equivalent circuit was determined by the actual operating conditions rather than using a data sheet value that in some cases could be quite different. a.hybrid b.hybrid-pi c.re d.pi(b) In a particular implementation of ADSL2+, 400 downstream subchannels are being used to achieve a data rate of 10.4 Mbit s-1. If 75 subchannels are using 1024-QAM, 125 are using 64-QAM and 100 are using 16-QAM, what modulation scheme must the remaining channels use, assuming they all use the same scheme? Show all your workings3.14 Given the data stream 1110010100, sketch the transmitted sequence of pulses for each of the following line codes: (a) Unipolar nonreturn-to-zero (b) Polar nonreturn-to-zero (c) Unipolar return-to-zero (d) Bipolar rerurn-to-zero (e) Manchester code CS Scanned with CamScanner
- 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(i) Below (figure 1) is an example of a VHDL code for a multiplexer. --multiplexer.vhd --Common Multiplexer LIBRARY ieee; USE ieee.std_logic_1164.ALL; ENTITY multiplexer IS PORT(el, d3, d2, d1, d0 : IN STD_LOGIC; a,b.c,d,e,f.g.h.ij.k,lm,n:OUT STD LOGIC); END multiplexer; ARCHITECTURE mult OF multiplexer IS SIGNAL input : STD LOGIC_VECTOR (4 downto 0); SIGNAL output : STD LOGIC_VECTOR (13 downto 0); BEGIN input ca el & d3 & d2 & d1 & d0; WITH input SELECT "00000010000001"WHEN "10000",--Input A "00000010000001"WHEN "10001",- "00000010000001"WHEN "10010",- "00000010000001"WHEN "10011",- "00000011001111"WHEN "10100" "00000011001111"WHEN "10101 "00000011001111"WHEN "10110" "00000011001111"WHEN "10111" "10011110000001"WHEN "11000" "10011110000001"WHEN "11001" "10011110000001"WHEN "11010, "10011110000001"WHEN "11011" "10011111001111"WHEN "11100" "100111110011i1"WHEN "11101",- "10011111001111"WHEN "11110",-- "10011111001111"WHEN "11111":-. "00000010000001" -00 --"00000011001111"-01…For making communication and networking system fast, nowadays copper cable is becoming obsolete and hence optical fiber has taken its place because of its rapid communication and information passing characteristics. Describe in details the classification of this optical fiber with light propagation mechanism and neat sketches.
- Choose the correct Answer: The difference in the propagation delay between the fastest and slowest pairs of the same un-twisted pair cable is called, O a. Delay Distortion O b. Propagation Speed O . Propagation Time O d. Delay Skew O e. Cross Talk2. Construct 16-to-1 line multiplexer using 4-to-1 line multiplexer.Refer to the VHDL code given below, which of the following line has error? Line 1: SUBTYPE my_logic IS STD_LOGIC RANGE '0' TO '1'; Line 2: SIGNAL a: BIT; Line 3: SIGNAL b: STD_LOGIC; Line 4: b<=a; Line 3 Line 2 Line 1 Line 4