Subject: Re: IIGS Keyboard draws how many mA? Newsgroups: comp.sys.apple2 From: dempson@actrix.gen.nz (David Empson) Date: Wed, 31 Mar 1999 01:47:22 +1200 Message-ID: <1dpi7sc.mgb4ll70xd22N@dempson.actrix.gen.nz> References: Organization: Empsoft X-Newsreader: MacSOUP 2.3 NNTP-Posting-Host: 202.49.157.176 X-Trace: 31 Mar 1999 01:46:58 NZST, 202.49.157.176 Lines: 19 Path: lobby!newstf02.news.aol.com!portc01.blue.aol.com!news-peer.gip.net!news.gsl.net!gip.net!cyclone.news.idirect.com!island.idirect.com!usenet.net.nz!news.iprolink.co.nz!news.actrix.gen.nz!dempson Perry Dueck wrote: > How many milliamperes does the standard IIGS ADB Keyboard draw from the > ADB port? > > How about the Apple Desktop Bus Mouse I ? It is a bit tricky to measure (I don't want to cut up an ADB cable), and I've never seen any detailed figures quoted. I seem to recall hearing that the keyboard draws around 100 mA. I expect the mouse is somewhat less than this (maybe as low as 50 mA). The power supply limit for all ADB devices is 500 mA. -- David Empson dempson@actrix.gen.nz Snail mail: P.O. Box 27-103, Wellington, New Zealand