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 characters and in addition, at least 3% 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 terminal that can be accommodated by the multiplexer.
(c) Sketch a possible framing pattern for the multiplexer.