Path: utzoo!mnetor!uunet!husc6!cmcl2!rutgers!cbmvax!grr
From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.dcom.modems
Subject: Re: Telebit -- thanks
Message-ID: <3276@cbmvax.UUCP>
Date: 6 Feb 88 20:21:10 GMT
References: <626@ddsw1.UUCP>
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 37

In article <626@ddsw1.UUCP> karl@ddsw1.UUCP (Karl Denninger) writes:
> To those of you who are thinking of buying a high-speed modem:
> 
> 	Get a Trailblazer.
> 	Even if you have to pay full price for it.
> 
> After what I have just seen, I am convinced.  We've been running the TB+ at
> 9600 baud, mainly because the 'autobaud' setting wouldn't answer at 19.2.
> On selected outdial calls we used 19.2 though, with good success.

Setting S51 to 254 enables 19200 as the default inteface speed for dial-in.
This isn't documented in the manuals they're currently sending out with
the modems, but apparently it's official.

Also the modems *will* auto-baud to 19200, but you have to send the AT
string as A\dT or your local equivalent of sending a delay.  If the modem
has already "autobauded" to some other rate, you may need to send a break
before the AT to force the modem to re-autobaud.  

Sending a sequence of break, delay, A, delay, T delay, return before your
actual ATTD5551212 sequence should be pretty universal, but no wagers accepted.

> Then I had an idea.  Lock interface speed at 19.2k, turn on CTS flow
> control (Thanks SCO... Xenix is wonderful too)...... and I got a nice
> surprise -- ANY system I call connects flawlessly, with an interface speed
> of 19.2k!  Those who run slower speed modems just get speed-converted by the
> modem.

I'm a little leery of this.  It's fine for uucp only connections, but
may have undesired side effects for normal human dial-ins.

Damn the humans!  Full baud ahead!  8-)

-- 
George Robbins - now working for,	uucp: {uunet|ihnp4|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)