X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao09.cox.net ([68.230.241.30] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 936983 for flyrotary@lancaironline.net; Mon, 09 May 2005 01:33:06 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.30; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao09.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050509053220.JPYK7275.fed1rmmtao09.cox.net@BigAl> for ; Mon, 9 May 2005 01:32:20 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: EC2 redundancy Date: Sun, 8 May 2005 22:32:29 -0700 Message-ID: <000001c55458$7de015a0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C5541D.D183AEA0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C5541D.D183AEA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 > At some point I asked Tracy if redundant power leads were truly = redundant. > As I recall, he stated that the two power leads are connected (to each > other) inside the box. =20 I'm pretty sure I had the same conversation, and the same answer. =20 You may recall last week I mentioned in a posting the I had redundant critical circuits, and "almost" redundant power to the EC2. The power inputs are common inside the box (at least on mine). However; you can = still run two feeds and isolate them just outside the box with diodes. At = least gives you redundancy to that point, and there are redundant controllers inside. =20 Best to use Schottky diode for lower forward drop - might allow running = a bit longer if your alternator fails and you are running your batteries = down. =20 Al ------=_NextPart_000_0001_01C5541D.D183AEA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

> At some point I asked Tracy if redundant power leads were = truly redundant.

> As I recall, he stated that the two power leads are connected (to = each

> other) inside the box.

 

I'm pretty sure I had the same conversation, and the same = answer.

 

You may = recall last week I mentioned in a posting the I had redundant critical circuits, and = “almost” redundant power to the EC2.  The power inputs are common inside the = box (at least on mine).  However; you can still run two feeds and = isolate them just outside the box with diodes.  At least gives you redundancy to = that point, and there are redundant controllers inside.

 <= /font>

Best to use = Schottky diode for lower forward drop – might allow running a bit longer if = your alternator fails and you are running your batteries = down.

 <= /font>

Al

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