From owner-freebsd-questions Thu Jun 17 23:22:43 1999 Delivered-To: freebsd-questions@freebsd.org Received: from boom.calcasieu.com (mail.calcasieu.com [209.99.46.80]) by hub.freebsd.org (Postfix) with ESMTP id CC1C214E2F for ; Thu, 17 Jun 1999 23:22:40 -0700 (PDT) (envelope-from dread@calcasieu.com) Received: from coypu.bb.calcasieu.com (coypu.bb.calcasieu.com [192.168.3.21]) by boom.calcasieu.com (8.9.3/8.9.3) with ESMTP id BAA23282; Fri, 18 Jun 1999 01:21:45 -0500 (CDT) Message-ID: X-Mailer: XFMail 1.3 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <000f01beb948$1a080670$4001a8c0@tasajohns.turnaround.com.au> Date: Fri, 18 Jun 1999 01:21:43 -0500 (CDT) Organization: Calcasieu Lumber From: Don Read To: Andrew Johns Subject: RE: Null-Modem? Cc: FreeBSD Questions , cjclark@home.com Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 18-Jun-99 Andrew Johns wrote: > A null-modem cable is a cable with the correct wires crossed/joined - > typically if all you want is software flow control (not the best but it > works) just connect pins 2,3 and 7 in a DB25 serial port connector (aka > V35 connector) and swap pins 2 and 3 at one end. Pin 2 is transmit, 3 > receive, 7 ground; so you've got: > > One end: Other end: > > TX 2 --------\/------------- 3 RX > RX 3 --------/\------------- 2 TX > Gr 7 ----------------------- 7 Ground > if your terminals pay attention to the control signals then add: RTS 4 -- -- 4 | | CTS 5 -- -- 5 DSR 6 -- -- 6 | | CD 8 -- -- 8 | | DTR 20 -- -- 20 Regards, --- Don Read dread@calcasieu.com EDP Manager dread@texas.net Calcasieu Lumber Co. Austin TX -- But I'm in good company, sendmail has kicked a great many butts in the past To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message