Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!att!pegasus!psrc
From: psrc@pegasus.ATT.COM (Paul S. R. Chisholm)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Looking for a Sync/Async modem for PC/XT
Summary: no recommendations, but some comments
Keywords: Synchronous modem
Message-ID: <595@pegasus.ATT.COM>
Date: 23 Jun 89 02:24:29 GMT
References: <64114@yale-celray.yale.UUCP>
Organization: AT&T Bell Laboratories
Lines: 35

In article <64114@yale-celray.yale.UUCP>, jacquemin-michel@CS.YALE.EDU (Michel Jacquemin) writes:
> I am looking for any information about synchronous 2400bps modems
> for a PC/XT compatible.  I would use it to connect to an IBM
> mainframe (using the BSC3780 bisynchronous protocol).

I'm not a modem expert, so take this with a grain of salt.  First of
all, while it's a good idea to say what you're going to do with what
you're looking for, I think that any synchronous modem should handle
any synchronous protocol (bisync, SNA, X.25, whatever).

> Being able to do async 2400bps (V.22 bis) as well would be a plus.

I know that 212-compatible modems can handle either async or sync . . .

> Internal preferred.

. . . but this won't happen.  I'm pretty sure that internal modems have
the equivalent of both an async adapter and a modem (except for the
power supply).  I'm almost positive that 1200 bps internal modems
specifically say they're async only.  (I'm not a V.anything guru, so
things could be different here.)

As for a recommendation:  I'm not that familiar with our modems, and I
don't have a product manual here at home, so I recommend you talk with
an AT&T account executive.  (Hey, he *asked*!)

> Michel Jacquemin, jacquemin@cs.yale.edu, ...!uunet!yale!jacquemin,
> Jacquemin-Michel@YaleCS.BITNET

Paul S. R. Chisholm, AT&T Bell Laboratories
att!pegasus!psrc, psrc@pegasus.att.com, AT&T Mail !psrchisholm
I'm not speaking for the company, I'm just speaking my mind.

> "L'ouie de l'oie de Louis a oui ce que toute oie oie", Raymond Devos
(I loved it when they sang this song in ANIMAL HOUSE, didn't you?-)