1.

A TDM link has 20 signal channels and each channel is sampled 8000 times/sec. Each sample is represented by seven binary bits and contains an additional bit for synchronization. The total bit rate for the TDM link is(a) 1180 K bits/sec(b) 1280 K bits/sec(c) 1180 M bits/sec(d) 1280 M bits/secThis question was addressed to me in unit test.My question is based upon Digital Transmission topic in division EDC Overview of Electronic Devices & Circuits

Answer»

Correct ANSWER is (b) 1280 K bits/sec

To explain I would say: TOTAL sample8000 X 20 = 160 k sample/sec

Bit for each sample7 + 1 = 8

Bit RATE = 160k x 8 = 1280kilobits/sec.



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