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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
The magnetic fields can be plot by using: i. Compass ii. Iron dust method .
Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min. (a) How many poles does the machine have? (b) Find the slip and t
When a current is passed through a conductor, a magnetic field is created in its surroundings. We can represent this magnetic field by drawing 'field (or 'flux') lines' with two
Q. Describe about Absolute Poverty? Poverty defined with respect to an absolute material standard of living. A person is absolutely poor if their income does not allow them to
compear copper and aluminum conductore in termes of price ,weight,resistance for equal length .
Consider a simple zener voltage regulator with the circuit diagram shown in Figure (a). (a) For a small reverse resistance R Z S and V S - R S i out > V Z , show that v ou
Explain Diffusion. Diffusion : Though, the mobility of the carriers in a semiconductor is greater than the electrons in metals, the conductivity in the former is much less t
define all the symbols with their units of DC generater
SID Input Serial input data single bit can be accepted through this pin using RIM command discussed in details in chapter8.
Q. Sketch the timing diagram for a 4-bit ripple counter which uses T flip-flops.
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