I envision I.R. / R.F. / UTP / Powerline.  While the protocol would 
probably involve some custom type packets over CAN or something else. 
 Bridges would need to be designed to manage the changes in media.
I also envision a custom protocol that would make allowances for X10.  How 
that can be managed over powerline is something I haven't figured out. 
 Perhaps some smarts on the CAN end to detect X10 and transmit it if 
necessary.  I think X10 modules would be good for dedicated areas that 
don't require two-way communication (even though that would probably be the 
rare case).  I just don't want to trash the pieces I have.
John Mullan
-----Original Message-----
From:	Steve Letkeman [SMTP:zanthic.at.zanthic.com]
Sent:	Wednesday, August 25, 1999 11:46 PM
To:	ha.at.ro.nu
Subject:	Re: [ha] OK. OK.  So a lot of people like CAN
Sorry, what was the original model?
Steve
Zanthic Technologies Inc. located at    http://www.zanthic.com
Controller Area Network boards for HC11, ISA/PC104 and Parallel
I/O boards for ISA and Parallel, Win95/98 and NT drivers included
-----Original Message-----
From: John Mullan <jmullan.at.cgocable.net>
To: 'ha.at.ro.nu' <ha.at.ro.nu>
Date: Wednesday, August 25, 1999 7:10 PM
Subject: [ha] OK. OK. So a lot of people like CAN
>You've convinced me that CAN can be good.  And likely it can do the job of
>HA.
>
>There has been a lot of mention about using it with hard-wired
>installations.  That's all well and good but to fit our original model, we
>can't rely strickly on hard-wiring.  Some of it has to be IR, some has to
>be RF and some has to be power-line carrier.
>
>I'm going to look into using CAN via a PIC micro and their CAN interface
>chip.  Surely we can add IR/RF/PL to the other side of the chip, not just
>wires.
>
>This will be a good step in the hardware direction.  Since I work my job
>quite a bit, it could take a couple of weeks for me to get one of those 
CAN
>chips and play around a bit.  If anybody else has some hardware/software
>stuff in this line please direct it my way so I can have a peek at it.
>
>John Mullan
>
>