X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao102.cox.net ([68.230.241.44] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2179687 for flyrotary@lancaironline.net; Sun, 15 Jul 2007 23:24:34 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.44; envelope-from=dale.r@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao102.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20070716032358.XKHV1428.fed1rmmtao102.cox.net@fed1rmimpo02.cox.net> for ; Sun, 15 Jul 2007 23:23:58 -0400 Received: from [192.168.1.103] ([72.223.48.245]) by fed1rmimpo02.cox.net with bizsmtp id Q3Pw1X00G5HQYSo0000000; Sun, 15 Jul 2007 23:23:57 -0400 Message-ID: <469AE4B8.6020404@cox.net> Date: Sun, 15 Jul 2007 20:23:36 -0700 From: Dale Rogers Reply-To: dale.r@cox.net User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: EM2 NOP flashing w/RPM and a couple of other questions References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit What Ernest said. I work as a field engineer for computer systems.
We regularly replace SCSI cables because of intermittent connections;
cable is visually perfect, but communication loses bits. We used to
test suspected cables with a reflectometer. Now, an hour's labor is
worth more than the cable; when in doubt, we toss 'em.

Dale R.
COZY MkIV #1254

Ernest Christley wrote:

Christopher Barber wrote:

Yeah, I think the NOP issue is poised to drive me crazy. I checked the grounds and serial connections todayand all checked ok, hooked it all back up and low and behold NO Flashing. Taxi'ed the plane for the first time for a few minutes (really fun). Taxi'ed back to the hangar and started to run the Auto Program with what seemed to be some succes and got about a third the way through when I started to worry about the engine getting too hot (I wish the H2O temp was displayed in the program mode), so I shut down Auto Program and the H2O was reading 233, so I am glad I shut down.

Let it cool a bit and started to restart and NOW the dang thing was flashing between NOP and the tach reading again. GEEEESH.

Remove the cable. Cut it in half and put it in the nearest trash can. Buy or make another cable.

I work in a networking lab. Lots and lots of cables. This is standard procedure. The cable can have an intermittent break in it anywhere along it's length. The fact that it works sometimes and not others means that you will never know when it will work, so it is best to remove it completely from the equation.

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