Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!src.honeywell.com!msi.umn.edu!cs.umn.edu!mmm.serc.3m.com!us264465 From: us264465@mmm.serc.3m.com (Rich A. Nazarian) Newsgroups: comp.dcom.lans Subject: Isolated RS-485 Message-ID: <1991Mar8.222700.9722@mmm.serc.3m.com> Date: 8 Mar 91 22:27:00 GMT Reply-To: us264465@mmm.serc.3m.com (Rich A. Nazarian) Organization: 3M - St. Paul, MN 55144-1000 US Lines: 6 Does anyone out there have any experience with electrically isolated RS-485 multidrop communications?? This could be either transformer coupled or optical/fiber optic isolation. Names of manufacturers, products, etc would be greatly appreciated. Thanks in advance.