From: jcmorris AT mwunix DOT mitre DOT org (Joe Morris)
Newsgroups: comp.os.msdos.djgpp,comp.os.cpm,alt.folklore.computers
Subject: Re: EOF char. (Was C++ and RHIDE)
Date: 7 Jul 1998 12:59:34 GMT
Organization: The MITRE Corporation
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Jerry Avins <jxyzavins AT erols DOT com> writes:

>On the big ASR TTY (model 30?) with a built-in modem, ^D would hang up
>the phone. 

I think you'll find that ^D (EOT) was interpreted as a disconnect order
on all of the 8-bit TTY boxes that had a (WECO) Data Set 109 built into
the unit; there was apparently a pair of contacts in the stunt box that
when activated caused the modem to go on-hook.  (Such units could be
identified by looking at the illuminated buttons under the phone dial or
TouchTone pad: if some of the buttons controlled the modem and some
controlled the motor, you probably had a DS 109 in the box.)

I don't recall if there was a strap option to suppress the hangup-on-EOT
feature.  Does someone here have a copy of the BSP pages for the DS 109?

Joe Morris