Xref: utzoo comp.misc:12688 comp.dcom.modems:9984 Newsgroups: comp.misc,comp.dcom.modems Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!ficc!peter From: peter@ficc.ferranti.com (Peter da Silva) Subject: Re: In-band escape to command mode (was Re: hayes lawsuit) Message-ID: Reply-To: peter@ficc.ferranti.com (Peter da Silva) Organization: Xenix Support, FICC References: <4913@orbit.cts.com> <1848@madnix.UUCP> <1991May24.075247.11534@netcom.COM> Date: Fri, 24 May 91 14:39:04 GMT In article <1991May24.075247.11534@netcom.COM> gandrews@netcom.COM (Greg Andrews) writes: > b) The entities who needed to grab control of the modem were people and > not machines, thus the mechanism needed to be something a human could > perform while using any of the popular terminals of the time. I have never seen a system that was unable to generate a 250 ms break. I have seen few, if any, terminals that did not have a break key. Certainly the most common DTE devices of that period, the Lear Seigler ADM3 family and the 8080 and 6502 based PCs, had the capability. The only problem with the use of the break signal was terminal emulator software. -- Peter da Silva; Ferranti International Controls Corporation; +1 713 274 5180; Sugar Land, TX 77487-5012; `-_-' "Have you hugged your wolf, today?"