Draw the block diagram of a 128 line EPABX and explain its operation?

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why the timer is necessary in electronic operation?

2 Answers   Siemens,

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Can any one please send me the hpcl question papers or pattern for ece branch please mail to sweetyastweety@gmail.com

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optical fiber losses.

11 Answers   ONGC, RRB, Tata Communications, Telecommunications,

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A noiseless 8kHz channel is sampled every 1msec. What is the maximum data rate?

1 Answers   Chongqing University of Posts and Telecommunications,

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what will happend when you will switch on your mobile?need technical answer?wich are the channels associated with this?

9 Answers   Wipro,

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which remote subscriber provide voice communication?

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What are advantages of dc supply over ac supply?

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why ic 741 is different 4 m other ic's and y these ic 741 is used in integrated circuits?

1 Answers  

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hi i am electronics & telecomm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you. das.nilanjana2000@gmail.com

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What is potential transformers?

0 Answers  

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In micro controller individual pin output current is 1.6ma .Normally to blink a led we need minium 10-12 ma. But if we connect led to the micro controller pins without additional device it blinks. How it is possible

0 Answers  

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