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Q. Explain about Stored Program Control?
Stored Program Control: In centralized control, all control equipment is replaced by a single processor which should be quite powerful. It should be capable of processing 10 to 100 calls per second, depending on the load on system, and concurrently performing many other ancillary tasks. A typical control configuration of an ESS using centralized SPC is displayed in Figure. A centralized SPC configuration can use more than one processor for redundancy purposes. In almost all present day electronic switching systems employing centralized control, only a two-processor configuration is used. A dual processor architecture can be configured to operate in one of three modes:
(i) Standby mode
(ii) Synchronous duplex mode
(iii) Load Sharing mode
WHAT ABOUT THE STABILITY IF WE USE COMPENSATOR
Q. Explain topology method used in LAN technology? Ans: LAN Topologies: Network topology is a physical schematic which demonstrates interconnection of the many users. Th
Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinders
Pinch off Voltage: The current in N-JFET because of a small voltage V DS is described by: I DSS = (2a) W/L (qN d μ n V DS ) In which 2a = channel thickness
Q. A balanced wye-connected load with a per-phase impedance of 4 + j 3 is supplied by a 173-V, 60-Hz three-phase source. (a) Find the line current, the power factor, the tota
LDA Load Accumulator Direct Instruction This instruction is used to copy data from memory whose address is directly specified in the instruction to th e accumulator. The i
Explain the electrical contact materials with examples. Electrical contact materials: A number of elements in their pure form as copper, nickel, palladium, molybdenum, platin
for the following circuit find i(t)
Q. What do you mean by Resistance? An ideal resistor is a circuit element with the property that the current through it is linearly proportional to the potential difference acr
Determine Potential Difference: Compute the current through each element of the given network and also determine potential difference across 15 Ω resistor. Figure
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