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000398_news@newsmaster….columbia.edu _Mon Dec 7 14:56:44 1998.msg
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From: jaltman@watsun.cc.columbia.edu (Jeffrey Altman)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: File transfer using a parallel port
Date: 7 Dec 1998 19:56:42 GMT
Organization: Columbia University
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In article <74h1ne$p4q$1@apakabar.cc.columbia.edu>,
Frank da Cruz <fdc@watsun.cc.columbia.edu> wrote:
: In article <366BE49C.F62C11EB@vega.co.uk>,
: Darren Harvey <dharvey@vega.co.uk> wrote:
: : I'm trying to transfer some large files (10Mb), on a regular basis,
: : between two machines. I would like to transfer the files using the
: : parallel port. One machine will be DOS, the other running NT (4).
: :
: : Can I use Kermit to sent the files between the machines. ie set port
: : lpt1 doesn't work - can I set up com3 to be the parallel printer port?
: : Any ideas or other suggestions would be much welcomed?????
: :
: Neither Kermit 95 nor MS-DOS Kermit include any explicit support for
: parallel ports. The only way to do this with Kermit would be to find
: drivers that make parallel ports look to the software like serial ports.
: I would not be surprised if such drivers exist, but I don't know of any
: concrete examples.
:
: In the meantime, you should be able to use the serial ports -- assuming
: they have buffered UARTs -- at speeds of 57600 or 115200 bps with hardware
: flow control. At 115200 bps, 10MB should take 858 seconds, or 14.3 minutes,
: to transfer with fast protocol settings. Less if the data is not
: precompressed.
:
: - Frank
Kermit 95 may use parallel ports on Windows 95 and Windows 98 because
the operating system treats parallel ports as a special form of serial
port at the device driver level. Kermit 95 cannot access parallel ports
on Windows NT because the operating system treats them separately from
serial ports.
Windows 2000 is rumored to contain parallel port drivers that look
like serial ports.
Jeffrey Altman * Sr.Software Designer * Kermit-95 for Win32 and OS/2
The Kermit Project * Columbia University
612 West 115th St #716 * New York, NY * 10025
http://www.kermit-project.org/k95.html * kermit-support@kermit-project.org