RS485 allow multiple control points?

[gregoryx]

Looking into which controlled thermostat line to go with for a currently-single-zone, but soon-to-be-multiple-zone environment.

RCS versus HAI are the two possibles.

I am moving everything critical over from my ADI environment to an Elk M1G and want it to be able to control the tstats as well. It will support both types - in 232 or 485.

As 485 is theoretically a multi-drop / P2P sort of communication environment, I'm hoping I can have HS directly talk to the tstats while the M1 does so as well.

Anyone know if this will fly? HAI versus RCS?

Thanks!

[Rupp]

I'm sure others will chime in but I own the RCS TX15B X10 tstat but as far as serial tstats go I would recommend the HAI line. They are cheaper and have more user configuration options. I also believe they are easier to connect via 485 than the RCS line. Hopefully someone who actually has a pair can comment though.