Answer to Question #21884 in Math for Sujata Roy

Question

A character-interleaved time-division multiplexer is used to combine the data streams of a
number of 110-bps asynchronous terminals for data transmission over a 2400-bps digital line.
Each terminal sends asynchronous characters consisting of 7 data bits, 1 parity bit, 1 start bit,
and 2 stop bits. Assume that one synchronization character is sent every 19 data characters
and, in addition, at least 3 percent of the line capacity is reserved for pulse stuffing to
accommodate speed variations from the various terminals.
a. Determine the number of bits per character.
b. Determine the number of terminals that can be accommodated by the multiplexer.
c. Sketch a possible framing pattern for the multiplexer.

Answer 1

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