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Article #768Re: Ok to leave slave HD cable connected with power off?
From: Phred
Date: Tue, 29 Jun 2004 14:09
Date: Tue, 29 Jun 2004 14:09
23 lines
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1763 bytes
In article <a4idnRH42_jJ0X3d4p2dnA@comcast.com>, "Timothy Daniels" <TDaniels@NoSpamDot.com> wrote: >"CJT" wrote: >> Who knows what state they're in when they're unpowered? > > 1) Is there a "state" when the circuits are unpowered? > 2) How is the "state" of an unpowered circuit going to > affect the signal passing by? Going back a few years, ISTR that the manual for the TRS-80 Model I stated that peripherals should all be powered up before (or at least simultaneously with) the computer to avoid damage to unpowered circuits. Don't ask me why this was recommended; but I *assumed* it had something to do with signal current paths that were perhaps "open" when they shouldn't have been, and thus more susceptible. > 3) Why don't you try it and see? Cheers, Phred. -- ppnerkDELETE@THISyahoo.com.INVALID
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X-Google-Thread: f4d7c,2cd677f473c69030 X-Google-Thread: 108c83,a2bc9923df2592fb,start X-Google-Attributes: gidf4d7c,gid108c83,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!fu-berlin.de!uni-berlin.de!not-for-mail From: ppnerkDELETETHIS@yahoo.com (Phred) Newsgroups: comp.sys.ibm.pc.hardware.storage,aus.computers Subject: Re: Ok to leave slave HD cable connected with power off? Date: Tue, 29 Jun 2004 14:09:49 GMT Organization: Just me Lines: 24 Message-ID: <2kdbfmFugvvU2@uni-berlin.de> References: <10dsl0j4i6q6n2c@corp.supernews.com> <c8ydnShARJWHnELdRVn-sQ@comcast.com> <40DF17C3.8060904@prodigy.net> <4tSdnTQ4cpltXULdRVn-hw@comcast.com> <40DFC9BB.8050604@prodigy.net> <a4idnRH42_jJ0X3d4p2dnA@comcast.com> X-Trace: news.uni-berlin.de ev3fCwNMFzbR1FpWKwwqeAb6Ov4hLUgBlXyiLT2hOThgT3uP8n X-Orig-Path: Telstra X-Newsreader: News Xpress 2.01