NetNews Usenet Archive 1992 #16/NN_1992_16.iso/spool/comp/os/os2/misc/25623

Text File | 1992-07-27 | 1.7 KB | 35 lines

Newsgroups: comp.os.os2.misc
Path: sparky!uunet!darwin.sura.net!Sirius.dfn.de!fauern!fauna!morpheus!hjkirch
From: [e-mail] (Hans-Joachim Kirchhoff (StudArb-Tribius))
Subject: Re: fax modems
References: <[e-mail]>
Message-ID: <hjkirch.712247147@morpheus>
Sender: [e-mail] (News Administration at faui45)
Organization: CSD., University of Erlangen, Germany
Distribution: comp.os.os2.misc
Date: Mon, 27 Jul 1992 14:25:47 GMT
Lines: 22

In <[e-mail]> [e-mail] (Lewis Perin) writes:

>Like everything else with no moving parts, fax modems have been
>getting very cheap lately.  While I don't often need to send images
>over the wire, the prospect of sending and receiving text at 9600 baud
>makes me want to junk my old 2400 baud modem and get one of the things
>I see advertised these days.  Since I don't want to foreclose the
>possibility of ever doing fax, can anyone tell me if any of the fax
>modems on the market today with text speeds >= 9600 are OS/2
>compatible?

If you want to use the high-speed modem with DOS software, you might want
to get yourself a new UART 16550. This UART does some hardware-buffering.
On CompuServe, they highly recommend it, if you want to use >9600 Baud with
DOS apps. The virtual Com-Driver eats up some time, so the response time
for an arriving byte to be read can be to long with higher baud rates.
This is especially the case, if you have an 80386 with lower clock speed.
The UART 16550 is pin-compatible to the 16450 and not so very expensive.
If you have got one, set MODE COMx:BUFFER=ON from a DOS prompt to enable
the hardware FIFO.

-Hajo