Path: utzoo!attcan!uunet!husc6!bbn!rochester!ritcv!cci632!ccicpg!felix!zemon
From: davids@iscuva.ISCS.COM (David Schmidt)
Newsgroups: comp.unix.ultrix
Subject: Re: Need info. on installing Trailblazer on Ultrix
Message-ID: <38550@felix.UUCP>
Date: 25 May 88 21:01:03 GMT
References: <35759@felix.UUCP> <36246@felix.UUCP>
Sender: zemon@felix.UUCP
Reply-To: davids@iscuva.ISCS.COM (David Schmidt)
Organization: ISC Systems Corporation, Spokane, WA
Lines: 65
Approved: zemon@felix.UUCP
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ARRRRRRRGGGGGGG!!!!!!!

(Thank you...I feel better now)

Here's the latest on getting a Telebit Trailblazer working as
a shared modem under Ultrix 2.2.

After talking (a lot!) to Atlanta Customer Support they recommended
that I create an entry in the /etc/acucap file and use the generic dial
routines.  (Previously I had the line set as a direct line and did the
dialing myself in the L.sys file).

It didn't take too long to get the generic dialer working...almost.  I
could connect to one site with the Telebit, but when I tried to call
Uunet, the dialer dropped DTR just as the modem was about to link up.
It turns out that Uunet has their Telebits set up to give the PEP (fast
mode) tones last (S92=1), and the other site I was calling had them
first (S92=0).  Because of the extra delay going through the V.22
bis/212A tones, the dialer was timing out before the modem got a
carrier.

No problem (I thought).  I'll just increase the timout in the acucap
entry.  There it is, the FD entry.  Unfortunately, no matter how large
I made the FD entry, the connection still timed out after about 30
seconds.  If I made the FD *smaller* than 30 seconds it would time out
ealier, but I couldn't get it longer than 30 seconds.

After more talking with Atlanta we figured out what was happening.  The
DHU driver will timout after 30 seconds if the carrier does not show
up.  All I have to do is find this timout and increase it.

Unfortunately, we don't have sources.  Is there anyone with Ultrix
sources that would be willing to work with me over the phone on finding
where to patch the DHU driver?  My dime of course!  I don't know VAX
assembler so digging through the DHU driver with ADB isn't helping
much.  If you're willing, give me a call at the number listed below.

Anyway, for what it's worth, here is my current /etc/acucap entry for
the telebit and the L.sys file entry.  This will work if the modem you
call has S92=0, or if your phone system is a bit faster than ours.


/etc/acucap entry:
==================
telebit|trailblazer|Telebit Trailblazer (UNSUPPORTED):\
	:cr:ss=A\dA\dATQE1S50=255\r\d:sr=OK:di=ATDT:dt=\r:\
	:db:cd#0:dd#0:sd#0:da#1:fd#55:rs=,:os=CONNECT:


L.sys entry:
============
uunet Any ACU 9600 9,17032760440,43377 CONNECT \d\d\r \
	ogin:--ogin: MYLOGIN ssword: MYPASSWORD


One other question.  Does anyone know how to get UUCP to use 19200
baud?  Tip can go to 19200 but when I put 19200 in the L.sys file
uucico complains.

-- 
David Schmidt              UUCP:  davids@iscuva.ISCS.COM
ISC Systems Corporation           (uunet!iscuva!davids)
East 22425 Appleway        Phone: +1 509 927-5479
Liberty Lake, WA  99019