From owner-freebsd-questions Mon Apr 5 6:31:26 1999 Delivered-To: freebsd-questions@freebsd.org Received: from maulwurf.franken.de (maulwurf.franken.de [193.141.110.9]) by hub.freebsd.org (Postfix) with ESMTP id 903D514CE1 for ; Mon, 5 Apr 1999 06:31:22 -0700 (PDT) (envelope-from gaspode.franken.de!tanis@maulwurf.franken.de) Received: by maulwurf.franken.de via rmail with stdio id for freebsd-questions@freebsd.org; Mon, 5 Apr 1999 15:29:24 +0200 (MET DST) (Smail-3.2 1996-Jul-4 #1 built DST-May-30) Received: (from tanis@localhost) by gaspode.franken.de (8.9.3/8.9.3) id PAA00763; Mon, 5 Apr 1999 15:26:48 +0200 (CEST) (envelope-from tanis) Date: Mon, 5 Apr 1999 15:26:45 +0200 From: German Tischler To: "Andy V. Oleynik" Cc: freebsd-questions@freebsd.org Subject: Re: Strange garbage on COM1 Message-ID: <19990405152645.A745@gaspode.franken.de> References: <370875F1.44D037C2@prime.net.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.4i In-Reply-To: <370875F1.44D037C2@prime.net.ua>; from Andy V. Oleynik on Mon, Apr 05, 1999 at 11:36:02AM +0300 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, Apr 05, 1999 at 11:36:02AM +0300, Andy V. Oleynik wrote: > Hi, guys, > I know it 's offtopic, but due the lack of time > I write here, sorrey, > Recently I've discovered "getty repeat to quickly on ttyd1" > (this is port2port leased line to my customer). I've investigate > this event & descovered there is 15V Rx/Tx (2/3 pins) voltage > on my port.Futher I measured voltage on another properly > working port & there was 11V Rx/Tx voltage. > I looked in the MBD but didnt recognize any suspecious things. > Pls, tell me what the voltage must be there? The hardware specs you give are normal for an RS-232-C interface, which says that the voltage between Tx and Rx should be between -15 and -5 volts (MARK) when the port is idle (given that you have DTE interface, which you should have). From what you say, you probably didn't get the configuration right yet. -- German Tischler tanis@gaspode.franken.de Apple eaten (core dumped) tanis@cip.informatik.uni-wuerzburg.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message