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Q. Explain about Subscriber loops signalling?
In a telephone network, subscriber loop signal linger lies upon the kind of a telephone instrument used. The intra exchange signalling is internal to switching system and is heavily dependent upon the design and type of a switching system. It differs from one model to another even with same manufacturer. This signalling doesn't involve signalling system of the type required on the switching network. When inter exchange signalling occurs between exchanges with common control subsystems, it's known as Inter register signalling. Main purpose of Inter register signalling is exchange of address digits that pass from exchange to exchange on a link by link basis. Network wide signalling also involves end to end signalling between originating exchange and terminating exchange. Such a form of signalling is known as line signalling. CCS doesn't use the speech or data path for signalling. It employs a separate common channel for passing control signals for a group of trunks or information paths.
Q. The voltage at terminal a relative to terminal b of an electric component is v(t) = 20 cos 120πt V. A current i(t) =-4 sin 120πt A ?ows into terminal a. From time t 1 to t 2 ,
how emitter current equal to collector current
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The electric roadway system shall utilize solar energy as the main power source. The electric roadway system shall negotiate with the power utility on backup power supply.
design 4 bit binary coded decimal to excess 3
Q. Consider a 1-bit version of the digital comparator shown in Figure. Note that the operation of this circuit is such that whichever output is 1 gives the desired magnitude compar
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