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Q. Explain about Register marker?
Register marker: Stronger selectors perform searching and counting . Though, the crossbar switch has no ‘intelligence'. Something external to switch should decide which magnets to operate. This is known as a Register Marker. As it takes less than a second to operate the switch, a marker can control many switches as well as serve many registers. So even a large exchange needs few markers. This is further stage of common control, which we willcall centralized control.
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Q. In a hundred-line exchange 24 two-motion selectors are used. Draw schematic you suggest for this exchange and illustrate its working. How many simultaneous calls can be made du
Explain time multiplexed space switching? With a neat diagram illustrate its operation. Ans: Time division switches where an outlet or an inlet corresponded to a single s
highest priority interrupt in 8085 microprocessor
Traffic Light Display Design a three color LED system with the following times for each LED: Duration of Green signal : 16s Duration of Yellow signal : 1s Duration of R
Multiprocessing - Many Processors Many users Many Programs Multiprocessing or also called distributed processing system provides solution to problems of above timesharing
Q. Three single-phase 100-kVA, 2400:240-V, 60-Hz transformers (each ofwhich has an equivalent series impedance of 0.045+j0.16 referred to its low-voltage side) are connected to fo
Q. Why do we cascade amplifiers? Why is RC coupling the most widely used coupling between 2 stages of a cascading amplifier? The voltage or power gain or frequency response obt
Q. Figure can also be considered as a simple model of a magnetically operated relay that is commonly used for the automatic control and protection of electric equipment. Consider t
Q. A current of 65 A is measured with an analog ammeter having a probable error of ±0.5% of full scale of 100 A. Find the maximum probable percentage error in the measurement.
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