Xref: utzoo comp.dcom.modems:2180 comp.mail.uucp:1540
Path: utzoo!utgpu!attcan!uunet!steinmetz!ge-dab!peora!rtmvax!rob
From: rob@rtmvax.UUCP (Robert Talley)
Newsgroups: comp.dcom.modems,comp.mail.uucp
Subject: Re: Catatonic TrailBlazer Pluses
Message-ID: <1825@rtmvax.UUCP>
Date: 2 Aug 88 14:16:21 GMT
References: <1461@pyrnj.uucp> <22499@amdcad.AMD.COM> <407@n3dmc.UU.NET> <151@ispi.UUCP>
Reply-To: rob@rtmvax.UUCP (Robert Talley)
Distribution: comp
Organization: RTmVax Public Unix System, Orlando FL
Lines: 36

In article <151@ispi.UUCP> jbayer@ispi.UUCP (id for use with uunet/usenet) writes:
>In article <407@n3dmc.UU.NET>, johnl@n3dmc.UU.NET (John Limpert) writes:
>
>> Probably not a coincidence.  I've had the same thing happen to my TB+
>> with the 4.0 ROM's.  The TB+ appears to have a problem with power supply
>> output sequencing/reset.  Short power hits from thunderstorms will put
>> the modem in zombie mode.  I just cycle the power and that fixes it.  I
>> have had similar problems with other equipment.  If the power supply was
>> designed properly, the modem would keep on running or reset itself,
>> dependent on the severity of the power hit.  I'm not an engineer, but
>While I would agree with the possibility of the power supply, I would never
>run a un*x system without a standby power supply.  

I agree completely with the last statement, but to clear up some of the
confusion, my trailblazer *still* has this problem and it *is* on a ups
along with the cpu & disks. I have been sitting right next to the modem when
it decides to play this trick, and I can safely say that out of 15 devices
running, most *not* on the ups, I *do not* think that power glitches are the
complete answer to this problem.

I have even seen my modem *speak* to itself for hours on end. No "SD" or
"RD" lights, but the modem is asserting "CD" and it *thinks* there is
another modem on the other end. Unplugging the telephone line from the modem
does not even clear the condition. The poor user on the other end has called
by voice to complain that "i got a burst of garbage (oxoxoxoxo) and had to
hang up because it would not stop". Here again, like with some other sites,
this problem has appeared after a month or two of *flawless* operation of
the modem.

Has anyone else seen this kind of behaviour?
Robert Talley

-- 
Robert Talley: RTmVax Semi-Public UNIX/USENET System Orlando, Florida
UUCP: {uiucuxc,hoptoad,petsd}!peora!rtmvax!rob
 c/o: Alexander Financial; 7 W. Main STE:200; Apopka, FL 32703 (407) 880-0000