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- Path: news.ultranet.com!usenet
- From: "Albert P. Belle Isle" <belleisl@cerberus-sys.com>
- Newsgroups: comp.dcom.modems
- Subject: Re: Microcom Parallel Port Modems - Any good?
- Date: Sat, 24 Feb 1996 10:34:10 -0500
- Organization: Cerberus Systems, Inc.
- Message-ID: <312F2FF2.409B@cerberus-sys.com>
- References: <312D2F2C.AB7@cris.com> <312EAD67.303F@cris.com>
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-
- James wrote:
- >
- > James Brandt wrote:
- > >
- > > Anyone have any experiences with parallel port modems? Specifically, I
- > > am considering the purchase of a Microcom parallel port modem because ALL
- > > of my internal slots are filled - both PCI and ISA (Oh, both my serial
- > > ports are in use also). This machine is completely maxed out as far as
- > > peripherals go, so a parallel port modem seems to be my only hope.
- > >
- > > My guess is that because I have an EPP/ECP parallel port, a modem
- > > attached to it doesn't have to worry about UART problems. Does this mean
- > > no more CRC overruns? Is this a fundamentally better way to get a good
- > > modem connection or am I missing something? Any tradeoffs?
- > >
- > > James
- >
- > Any answers?
-
- James:
-
- I have a Microcom Deskport 28.8P which I use through the parallel port of an
- old (8250 UART) lap-top. The included software driver was relatively easy to
- install and use, and successfully emulates a 300,000 bps serial port.
-
- Without it (or using it as a standard serial-port modem), I'm limited to
- running Trumpet Winsock at a com port rate no higher than 19200 (with only
- one window open - 9600 with more). With it, I can run at a 300,000 bps port
- setting with no overruns from compressible text downloads at 7500 bytes/sec.
- (Obviously, uncompressible file FTP downloads at 3200 are not a problem.)
-
- The modem is quite solid in achieving and maintaining 24000, 26400 and 28800
- bps connects on the same line and to the same dial-in servers with which my
- USR Sportster V34s (one internal, one PCMCIA on a newer lap-top) do.
-
- The Sportsters do, occasionally get a higher connect rate (they'll connect
- with just about anything better than a tin-can-on-a-string), and their
- transfer rates at a 28800 connect are 3-4% higher (as measured by Modem
- Status 1.8). However, the ability to use the parallel port is a distinct
- advantage, and I highly recommend the little Microcom if you need that
- feature.
-
- If you don't need the parallel port feature, the Microcoms are good, but I
- like my Sportsters.
-
- Regards,
-
- Al
-
- --
- ==================================================================
- Albert P. Belle Isle
- Cerberus Systems, Inc.
-
- Al's Winsock Tuning FAQ -
- http://www.cerberus-sys.com/~belleisl/mtu_mss_rwin.html
- ==================================================================
-