Path: utzoo!attcan!uunet!nih-csl!lhc!mimsy!haven!udel!wuarchive!usc!rutgers!cbmvax!grr
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.unix.ultrix
Subject: Re: DS3100 Serial Port vs Telebit@9600
Message-ID: <14830@cbmvax.commodore.com>
Date: 3 Oct 90 11:14:27 GMT
References: <14786@cbmvax.commodore.com>
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Organization: Commodore, West Chester, PA
Lines: 20

In article <14786@cbmvax.commodore.com> grr@cbmvax.commodore.com (George Robbins) writes:
> Before I pull the rest of my hair out, can anyone state conclusivly
> whether or not they've been able to get a Telebit or other 9600 baud
> modem to work "reliably" on the "modem" port of a DECsystem 3100?

Thanks for all the people that responded!

It turned out that the T2500 I was using was seriously flakey, I guess it
needs some ROM upgrades or other help.  The T1000 I grabbed in desparation
refused to assert CD on incoming PEP calls.  ARGHHHH!

I tried a differnt T1000 and suddenly everything is working quite nicely.
Even shared incoming/outgoing works, as long as the modem is setup to only
assert CD when a call is in progress (i.e. not in command mode) and the
cable has CD hooked to the approprite DS3100 pin.

-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr@cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)