On Fri, 7 Oct 2011 10:50:53 +0200 (CEST), Markus Gaugusch wrote: > Hi Pascal! > > I'm using another USB port of my monitoring PC [1] to power the 1wire > devices (currently 2x 2408 and 6x ds18s20, some ds2406).
So, you don't connect VDD+ on the master but on an USB plug which is connected to an USB port of your server. that's right ? > The advantage is that you don't have to put in an extra fuse (it's > current limited) and you can be sure that there is some common ground > between the two USB ports (to be on the safe side: Put those grounds > together, if you have any doubt). Ok I understand, this make me asking another question. Is 1wire using many or few electrical power ? It's for this reason i've thought about adding an external power supply, to not overload the server one. > Of course, any over-voltage might fry your USB port, but the bus > adaptor is on USB anyways, so you might want to add additional > protection like on [2]. What I understand about this protection is that it's use against lightning strike, no ? If it's right there is to few stors here nearby Paris ;) You're right Thanks, Pascal. ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
