On Wed, 03 Mar 2010 00:40:42 +1000 Mike O'Connor wrote:
>
>
>Baudrate is in bits/second not bytes/second! thus not <9600 baud. (7632
>bytes/sec with one start and one stop bit per byte equates to 76320
>baud!) ;-)
>
It's even more complex than that. Baud rate is defined as the signalling rate, and = bits per
second up to around 9600 baud; after that a single signal is encoded into multiple values, using
phase encoding or some other scheme, so that a 56kbit modem has a much lower signalling
rate. The slow time that it takes such a modem to establish a connection is so that the modems
at both ends can agree on a transmission rate that works without excessive errors caused by
line properties.
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Julian Thomas: jt@jt-mj.net http://jt-mj.net
In the beautiful Genesee Valley of Western New York State!
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