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From: dmt@ahutb.UUCP (d.m.tutelman)
Newsgroups: net.micro
Subject: Re: break keys
Message-ID: <567@ahutb.UUCP>
Date: Wed, 20-Mar-85 07:36:12 EST
Article-I.D.: ahutb.567
Posted: Wed Mar 20 07:36:12 1985
Date-Received: Thu, 21-Mar-85 02:51:43 EST
References: <9297@brl-tgr.ARPA>
Organization: AT&T Information Systems Labs, Holmdel NJ
Lines: 17

REFERENCES:  <9297@brl-tgr.ARPA>

>    Hook up a SPDT switch with - common on modem's pin 3 - normally
> closed on computer's pin 2 (TxD) (This would normally be connected to
> the modem's pin 3) - normally open on pin 20 (DTR) of both computer and
> modem.
Nice! Neat, should work, and apparently does. 

>   Depressing the switch will then pull the TxD line low for about 1/3
> second, which is the standard break signal.
I think it's pulling the line high, not low.

>    A software method I have heard of but not tried is to send
> a few nulls with the baud rate turned down to about 5 or so.
A single null should be sufficient. A few might be confusing.

				Dave Tutelman