[wellylug] [OT] Internet & Citylink

[David Antliff]

On Mon, 28 Feb 2005, Cliff Pratt wrote:
> The rule of thumb used to be to divide by 10. That was to allow for the 
> overhead of stop and start bits. I guess that only applies to serial port 
> lines. I also guess that it doesn't apply to ADSL, but I'm not sure why. 
> Anyone care to comment?

Because on broadband services the overhead is transparent to the user? The 
advertised speed is customer payload rate, not connection speed or symbol 
rate or anything like that. So a 256kbps link is 256 * 1000 (a 
kilobit is 1000 bits, not 1024) which is 256000/8 = 32000 Bps or 
31.25KB/sec.

-- 
David.