Another possibility is to use current-loop drivers. ----- Original Message ----- From: "Mark Willis" To: Sent: Saturday, October 21, 2000 3:01 AM Subject: [EE]: Ideas on a Wideish area Data network > In an industrial environment, and/or a home environment, has anyone had > a fair amount of experience with Dallas 1-wire and/or a similar setup, > over say 200 foot ranges using slow communications (1200 baud to 9600 > baud)? > > I'd like to use RG58 coax for power plus comms for one design, unsure if > it'll actually be practical for power plus data though; Thinking 9 to > 12V DC power for this one, just thought I'd throw the idea out and see > if anyone had used something like this. Lots of "hash" near the > machinery, the cable can be in conduit for longer runs (not that THAT > will save you!), it would just be really really convenient to have one > cable (Ethernet-style) for data plus power - Alternately could use > (cheap!) RJ11/RJ12 style cables, though they have resistance and noise > problems, or RJ45 Cat 5 cables, a little costly but do-able and still > with the problem of a noiceable resistance at each connection. (With > those, go for say 14VAC power and opto-isolated RS422; proven, works, > pricey at the PC end.) Just would like to go Coax if I can > > Absolute requirement to be able to unplug each node, so just hard-wiring > isn't an option; Could use a molex style connector, trying to use > something quicker and easier to "plumb", if practical... > > Thanks! > > Mark > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > > > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.