I'm not sure if this borders the topic or if it's way out - apologies if it's the latter.
I have been using DS1820's with OWFS for some time. The place has ethernet cabling that brings all the rooms into a central patch panel. In order only to use a single jack, I wired pins 1 and 2 as Data and Ground into the sensor, and then 7 and 8 back from the sensor. In the patch panel I used 2 strings of ISDN cable (flat, 4 wires) crimped into one RJ45 connector and connected from one jack to the next - that way the bus topology was correct. When temporarily pulling a sensor, I used a bridged connector to fill the gap.
Now I'm starting to use counters and switches, so I need 5V on my bus. Is there a standardized way to set up cabling for this? should I just put +5V and GN on pins 3 and 4 resp. 5 and 6 and bridge it through at the other end, or is there some standardized way to handle this? I found lots of different examples on the net, however they never seem to bring the signal back from the port and therefore seem to violate the bus setup. Is that permissible? I have around a dozen sensors/actors (bound to become more) and a total cable length of maybe 100 meters, high quality CAT7.
How do you handle this kind of setup?
Marc
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