Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu!sanjay
From: sanjay@ccwf.cc.utexas.edu (Sanjay Keshava)
Newsgroups: comp.misc
Subject: meaning of modem lights??
Message-ID: <43241@ut-emx.uucp>
Date: 27 Jan 91 00:00:08 GMT
Sender: news@ut-emx.uucp
Reply-To: sanjay@ccwf.cc.utexas.edu (Sanjay Keshava)
Distribution: usa
Organization: UT Austin B-School, High-Tech Capitalism in the making
Lines: 33
Originator: sanjay@donald.cc.utexas.edu


Would someone please describe the meaning of the lights on my external
modem?  The manual doesn't say anything about them.  They are labelled
as:

HS, AA, CD, OH, RD, SE, TR, MR

It is a Cardinal 2400 external modem.

The reason I ask is that a few minutes ago I was logged into the
school computer via MSDOS Kermit at 1200 baud and typing a letter in
emacs when something froze.  The SD light would still flash with every
keystroke, but nothing was being echoed.  I couldn't even break out of
the system.  Also, the MR light was flashing at about 1 Hz.  The only
other lights that were on were CD and TR.  So it looked like the
following:

HS AA CD OH RD SE TR MR
0  0  0  1  0  X  1  F    where 0=off, 1=on, X=on with keystroke,
                                F=flashing at about 1 Hz

This has happened once before for unknown reasons.  The only way to
break out was to tell Kermit to hangup.

Thanks in advance.

-- 

Sanjay Keshava   Student in the UT Austin Graduate School of Business
    ->|<-        Class of July 1991, Information Systems & Finance
                 ... Anyone want to hire a computer engineer with an MBA?
                 Greetings to fellow Anteaters, Trojans, and Longhorns.
sanjay@ccwf.cc.utexas.edu  |  ...!ut-emx!ccwf.cc.utexas.edu!sanjay