While we are on this subject (and apologies for slightly diverting the original thread):
My previous network was the standard, single wire, with the controller at one end of the long wire - as per recommendation. Because I really don't know enough about digital signalling & timing, reflections, etc, I need to pose this question: If I change my network from this to a long wire with the controller somewhere *in the middle* (ie: a star with only 2 legs), are there any special things I need to consider to maintain reliability? Does it matter if the master is *exactly* center, or, say, 1/3 & 2/3 split? And does anybody terminate the ends of their cable? Thanks Phil On 25/01/2012, Eloy Paris <pe...@chapus.net> wrote: > On 01/25/2012 01:12 PM, Marc MERLIN wrote: > >> On Wed, Jan 25, 2012 at 09:37:31AM -0800, Silvano Gai wrote: >>> >>> there is also the issue of topology: sometime a star topology is a >>> better fit than a bus, especially if you have some form of structured >>> cabling with a wiring closet. >> >> You can do star with a wiring closet, I just took down the signal on 2 >> wires >> and brought it back on 2 other wires :) > > Well, logically that is a star topology (i.e. wires meeting at a central > location) but physically/electrically that is a bus topology, which is > what I understand the official recommendation is for a 1-Wire network ;-) > > Sorry, I couldn't resist :-) But yes, I am doing the exact same thing, > i.e. reaching the sensor with one pair, coming back from the sensor > using another pair, and connecting both pairs at the sensor. > > Cheers, > > Eloy Paris.- > > ------------------------------------------------------------------------------ > Keep Your Developer Skills Current with LearnDevNow! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-d2d > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
