I have an EZIO8SA and an ISY 994i.

After reading the Maxim Semiconductor documentation on the 1 wire system they produce ( https://www.maximintegrated.com/en/app-notes/index.mvp/id/148 ) it left me with some questions about implementation of a 1 Wire system in my home on my EZIO8SA.

If I was using a linear topology with CAT6 wiring, what is the “network weight” (total length of all wire) budget and maximum radius for the 1 wire hardware used in the EZIO device? Or is there a formula based on “weight” and radius?

A prior post shows different wiring diagrams for “short” vs. “long” distances to the probe. Is there any guidance on what wiring length is a short vs. long distance? Is this the distance from the linear topology buss wire to the probe or is it measured all the way back to the EZIO device?

Are individual pull up resistors on each sensor recommended as shown the Maxim document for a linear topology installation?

Of course doing a star topology is an option, but it seems that is when the “weight” of the network becomes critical more quickly.

Finally, just to be sure, once the 1 wire network is built, can the current ISY994i read these temperature sensors?

Any help would appreciated.

–LFMc