Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!sdd.hp.com!samsung!uunet!mixcom!xeee02
From: xeee02@mixcom.COM (Dean A. Roth)
Newsgroups: comp.dcom.modems
Subject: Re: V.32 problems: modems not talking
Keywords: PPI 9600SA vs. USR Dual Std. vs. T1600
Message-ID: <676@mixcom.COM>
Date: 2 May 91 22:41:13 GMT
References: <665@mixcom.COM> <1991May1.000254.10956@netcom.COM>
Distribution: usa
Organization: Milwaukee Information eXchange (Public access Usenet, Email)
Lines: 22


>In article <665@mixcom.COM> xeee02@mixcom.COM (Dean A. Roth) writes:
>>
>>The 9600SA and T1600 will not make a V.42 or V.42bis
>>connection, but will make a MNP 5 connection.  Both
>>will make a V.42bis connection with other modems - just
>>not each other.

A PPI tech support person admited to me (over the
telephone, not in writing) that the 9600SA has problems
talking with a V.32/V.42 Telebit.  Another (the third)
EPROM is in the mail (release 1.31).

The person also said that the older PROMs asserted
carrier detect *before* protocol negotiation was 
completed.  That can explain why I have never been 
able to get a 9600SA to reliably answer calls when
attached to a multi port serial board in a UNIX computer.
It seems to work O.K. when attached to an MS-DOS
computer, though.
-- 
Dean Roth           deanr@mixcom.com