From owner-freebsd-questions@FreeBSD.ORG Thu Mar 4 16:41:14 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7D1C41065676 for ; Thu, 4 Mar 2010 16:41:14 +0000 (UTC) (envelope-from martin@dc.cis.okstate.edu) Received: from dc.cis.okstate.edu (dc.cis.okstate.edu [139.78.103.93]) by mx1.freebsd.org (Postfix) with ESMTP id 36EE18FC14 for ; Thu, 4 Mar 2010 16:41:13 +0000 (UTC) Received: from dc.cis.okstate.edu (localhost.cis.okstate.edu [127.0.0.1]) by dc.cis.okstate.edu (8.14.2/8.13.8) with ESMTP id o24Gf06Z051029 for ; Thu, 4 Mar 2010 10:41:09 -0600 (CST) (envelope-from martin@dc.cis.okstate.edu) Message-Id: <201003041641.o24Gf06Z051029@dc.cis.okstate.edu> To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <51027.1267720860.1@dc.cis.okstate.edu> Date: Thu, 04 Mar 2010 10:41:00 -0600 From: Martin McCormick Subject: Re: RS232 / TCP converter and BSD. X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Mar 2010 16:41:14 -0000 Chuck Swiger writes: > Data centers use that for serial connections to stuff like Cisco routers > and other terminal applications all the time. However, if the device is > truly RS-232 rather than 422/423, it's nominally out of spec past 50 > meters > and possibly won't go past 9600 baud. I was wondering about that when I wrote my long-winded response. I was confused and thought the maximum length for RS-232 was longer than it is. 70 meters is almost 25% out of range which is kind of pushing things.