On Mon, 07 Aug 2000 10:31:16 +0000, "Edenyard" <[EMAIL PROTECTED]> wrote:
> On Sat, 05 Aug 2000 14:17:23 +0000 Bastiaan Edelman wrote:
>> in practise the speed of a normal telephone connection wil not exeed
>> 19k2 ... often lower than that.
>> Your computer is blowing the bits into the modem faster than it can
>> handle (115k vs. 56k) and the modem is spitting it in the telephone line
>> at a spead much higher than the line can handle.
>> In the end the computer is at least 8 times faster than the line...
>> with stalling and other trouble as a result.
>> What is the point in setting the computer to speeds that modem and line
>> cann't handle anyway...
<snip>
> Bear
> in mind that the port speed isn't equal to the line speed for at least
> two reasons: firstly, the data coming down the line may be compressed.
> The modem de-compresses it so that there is more data to send to the PC
> than came down the line. To get that expanded data into the PC at the
> same rate that the compressed version came down the line requires that
> the data is transferred to the PC at a faster rate, obviously. Secondly,
> the PC and modem exchange control messages along the serial link as
> well. All told, there's more data going between the modem and PC than
> there is going along the line.
> Hope this helps!
> Ron.
I think it explains why my RX is considerably higher than the DTE (?)
rate. ...always wondered about that. THX!
- Pete Randolph -
- Morristown Corners, Vermont -
