From owner-freebsd-questions@FreeBSD.ORG Fri Nov 28 19:47:27 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 835EAD69 for ; Fri, 28 Nov 2014 19:47:27 +0000 (UTC) Received: from nm24-vm7.bullet.mail.ir2.yahoo.com (nm24-vm7.bullet.mail.ir2.yahoo.com [212.82.97.31]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B7871AE3 for ; Fri, 28 Nov 2014 19:47:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s1024; t=1417204043; bh=iDLvXURdKczlLuSHpUNqOpo+/xOU0lFlUYyfUn4mao4=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=KxBJTIPfRoe+06mcPf6V4v2plSZhxoE63H1bkd9Y6ey090FLyfEf24vuF1YP3m/e9frSI+iICCbz5G/d9bNwi5T/YyOuqCf7NdQXmw+GnRkZ8xqM2ymbULhBKMZ8MHDNAxsng2/FOfVLD93/ndkQ9HcnrQ2Wx/ZRmsPWYikAEB4= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rocketmail.com; b=stv4kVayRdFDfnrFuaFJ4etTtNioV8kjr6YZiW7MojSAexNbJ1KcfI74fORFau+h12VRgnHbhh46d9Jqh44wbTSb67YmQdXc8zr2W2gNU0q7vwzblthnqEAYZKfaRutJrfRJkgPrneWxwGu+qGLJt4uy9FOCC9/8JTRtwTcL6dc=; Received: from [212.82.98.54] by nm24.bullet.mail.ir2.yahoo.com with NNFMP; 28 Nov 2014 19:47:23 -0000 Received: from [46.228.39.69] by tm7.bullet.mail.ir2.yahoo.com with NNFMP; 28 Nov 2014 19:47:23 -0000 Received: from [127.0.0.1] by smtp106.mail.ir2.yahoo.com with NNFMP; 28 Nov 2014 19:47:23 -0000 X-Yahoo-Newman-Id: 846337.22731.bm@smtp106.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: z4jkidkVM1khfDg76zoJiHgi_uSJj3V_NreFouOBKC3DSn1 ESlyF_J6__0MJzten3UyMZasM3zdUvahfe.nDwCj.Ajuwl1Q2JDvywYhog61 CyXt9lhy9ixnd1pEP6VtViZgmef0iCNBzW.GC2uVMY2nkWlySIwf3UQqVF7Q OqQEM7xajLVmRQbicFk.tTwRAonKTi9n966L4SH1wtlrBbxahaoYGp_vBYwi W8Ho89Nvx9_qyDUoVUZGMOKhdyCWRWKPjVReCMarDuq7m8PTGspX5Qwk2xiQ 8gzEjLxekQWnNsolduxjNzr_a5zrKbT12OU3_WUuUtRGhWvPsqapje8WjIlP Ve9isGF54ozURlSsLGfdFrFr8K53DYhyZABFFXesixQsDmpmcRItr6.xqZYX .aZGW7ADi..dqo.rV.Gay3OiikijPGrCPnOfwcl2iwS72i8U5QO4FTAYhiWs txsQohMEfpEI4Hf3vhJ0DQheazf7jKvU86K7eHWKcOhy7FfyPVAmNjjHXe1M UOesGbmJFO4aTMKTygDT1rkuMQOsGZm4qTWXkjCJVng_b3sZGppfgfU1x1Yu Cd51oEES3xDZCoeFOawwIZhoAbpgugYsvVFf0mBziRZJJE2JATIgrHvwIydD YoHVhoBP_y0tIqLV2hcnyqL0gVC0- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Fri, 28 Nov 2014 20:47:22 +0100 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: OT: UPS for FreeBSD Message-ID: <20141128204722.561f948e@archlinux> In-Reply-To: <5478CC08.9090307@yahoo.com> References: <54777AB1.9010800@bluerosetech.com> <54779629.302@bluerosetech.com> <5478BD4F.7020306@yahoo.com> <5478BEE6.30308@bluerosetech.com> <5478CC08.9090307@yahoo.com> X-Mailer: Claws Mail 3.11.1-34-g5c904ff (GTK+ 2.24.25; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Nov 2014 19:47:27 -0000 On Fri, 28 Nov 2014 14:24:56 -0500 Paul Pathiakis via freebsd-questions wrote: > I would hope that any power coming out of any UPS is cleaner than > whats coming over the miles of power lines to your building/outlet. Too funny, I didn't followed this thread, but randomly read this mail. Since more than 20 years ago, when switching power supply became the standard power supplies for most gear, most unpleasantness is caused by impact of switching power supplies to the mains. "Very low cost SMPSs may couple electrical switching noise back onto the mains power line, causing interference with A/V equipment connected to the same phase." - http://en.wikipedia.org/wiki/Switched-mode_power_supply Are there other switching power supplies, than "Very low cost" once used in averaged households? "miles of power lines to your building" aren't the issues nowadays, the power switching supplies inside our buildings pollute the mains. Regards, Ralf PS: 99,999999999999% when I needed to repair broken gear in the last years, I needed to repair a f...ine switching power supply.