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Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!oliveb!felix!zemon
From: don@seila.UUCP (Don Kossman)
Newsgroups: comp.unix.ultrix
Subject: hayes modem strangeness
Message-ID: <8540@felix.UUCP>
Date: Thu, 8-Oct-87 12:41:45 EDT
Article-I.D.: felix.8540
Posted: Thu Oct  8 12:41:45 1987
Date-Received: Mon, 12-Oct-87 19:24:36 EDT
Sender: zemon@felix.UUCP
Organization: SEI Information Technology, LA, CA
Lines: 20
Keywords: DTR cycles mysteriously
Approved: zemon@felix.UUCP (Art Zemon)

anyone else run into this?  we're running ultrix 2.0 on a microvax-2.

we have several hayes smartmodems; one older one (8-position dipswitch
and a volume control) and two newer ones (10-position dipswitch, no
external volume control but two rj-11 phone jacks).

the older one works fine, using the dip switch settings shown
in etc/acucap.  port is set up (etc/ttys) as "shared modem".

with the newer ones, same port, same cable, same setup,
whatever we do, we see the front panel TR (ie. dtr) lamp 
cycling as follows- 30 seconds on, 90 seconds off.

any suggestions?  has hayes changed the way the signals are
wired to the db25 connector?  


-- 
Don Kossman, SEI Information Technology, Los Angeles
usenet: {ccicpg!imt3b2 | peregrine!imt3b2 | sun!tsunama!tsunami}!seila!don