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- Path: sparky!uunet!dtix!oasys!lewis
- From: lewis@oasys.dt.navy.mil (William Lewis)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Internal 14.4K Modems
- Message-ID: <28560@oasys.dt.navy.mil>
- Date: 15 Dec 92 12:53:51 GMT
- References: <1992Dec14.215838.16959@nosc.mil>
- Reply-To: lewis@oasys.dt.navy.mil (William Lewis)
- Organization: Carderock Division, NSWC, Bethesda, MD
- Lines: 50
-
- In comp.sys.ibm.pc.hardware, mitch@nosc.mil (Ray Mitchell) writes:
- >I'm in the process of buying a 14.4K internal modem and need some guidance.
- >The brands I have had recommended include Intel, USR, Complete Comp,
- >Practical Comp, MACS, and Boca. Excuse misspellings because all of these
- >have been phone discussions. Price is an object but it doesn't outweigh
- >reliability. A FAX feature is desirable but not a must if the price is
- >right. The best price I found was on a Boca 14.4K FAX modem but one
- >source told me they do not run reliably at 14.4K because they lack a
- >UART, and one can't be added.
- >
- >Thanks in advance
- >Ray Mitchell
- >mitch@nosc.mil
-
- I bought a Zoom 14.4k external, from Price Club at $239, that was the
- ^^^^^EAST COAST, WASH. D.C.
- best price I've found. I like the external alot better than my old internal
- 2400 because it's a LOT easier to take it to another machine if I had
- to. Which I have done once so far, though I never thought I would ever
- have to. The externals also have the added feature of the indicator
- lights on the front, which is good for trouble shooting. It also came
- with a very good book that you can use with any modem. It covers all
- of the AT and extended AT commands, S register values, and V.42 etc...
- commands. AND the UART chip is on your I/O board, because the modem
- plugs into a com port, either size connector (it comes with an adaptor).
-
- One thing about 14.4 connections though, they are not guaranteed.
- I've found that I've had little success in obtaining a reliable 14.4k
- connection (My phone line is situated in a very noisey electrical environment
- which makes anything above 9600 difficult)
-
- This brings up a question to all of the hardware heads out there....
-
- I've looked at my I/O card and don't see chip with the markings
- "16450" which is the chip I have according to PCTOOLS diagnostics
- Nor have, I seen anything that says "UART" on it.
-
- Now the question...
-
- Would upgrading the UART (either by board or by chip), improve the
- chance of obtaining 14.4k connections? (upgrade 16450 to a 16550)
-
- well this has been more than my $0.02 worth.
-
- for those of you who didn't get this far I'll repost the question in
- a shorter format.
-
- Thanks,
- Bill Lewis
- lewis@oasys.dt.navy.mil
-