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Multiplier for binary input to couple parity and stop bits on odd/even programmable read-only memory (PROM). Parity and stop bit are necessary in dial-up modem communications. Upon various sequence of the logic through puts (in a real scenario come passed through one wire, this is more a visual a learning circuit) the stop bit and hi/low of odd and evens is used to define acknowledgements at introduction handshakes. After parity and stop bit are defined known by the carrier, any following sequence is communications flow of data. In a constant single speed modem wire communications, these signals are continuous from the first to the last, and repeats. A hi and lo in full sequence, is also a parity, such as odd and even in distance over time, the stop bit extrapolates. I made this derived from a decimal to binary encoder.
Over a single wire, the carrier will start with on/off repeating until the receiver properly senses or considers packet loss, it will reply with with a stop bit on for duration of a off and on, just after a on, pitching the incoming stream to set baud rates and then commences the off/even implication and the stop bit number just once, and in success subsequent communications only need to reply the repeat send, which is relaying new odd/even balance on the stop bit number, so both recognize the same number in future packet loss to resequence interrupted streams. This example here shows a serial stream of 10 bits if you had 10 wires it could potentially bandwidth, this of course is visually slowed down, in a optical wire situation the flash would be so fast you wouldn't see it even with a pretty slow modem. - nforystek
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