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Re: Re: RS485 - XPL on the wire




Hi All,

http://www.hth.com/easytap/default.htm

May be of interest.......

I've alsways thought that RS485 was mainly about the "hardware"
layer.

SNAP,  http://www.hth.com/snap/
which I know many are aware of,  is one
protocol that can sit on RS485, as indeed is DMX512
http://www.dmx512-online.com/physl.html
, if I've got this wrong feel free
to take me into a dark corner and tell me so.

Regards

Stuart

----- Original Message -----
From: "Williams Christopher C" <ccwilliams@xxxxxxx>
To: <ukha_xpl@xxxxxxx>
Sent: Friday, October 22, 2004 11:30 AM
Subject: RE: [ukha_xpl] Re: RS485 - XPL on the wire


>
> Hi Guys,
>
> I have no experience with RS485, although I would like to learn about
it.
> If one of the intentions to to be able to use DMX lighting
controllers,
> surely what ever protocol is used must be compatible with these?
>
> Can anything be learnt from the protocol used by Comfort to talk to
its
> keypads and UCM modules?  It is proprietary and not published, but
someone
> may know a bit about it.  I believe the early PC software used to talk
this
> protocol directly.  Someone on this list mentioned it ages ago.
>
> On the CANBUS side, the TINI Java controller has Ethernet and CANBUS
> interfaces, may be these used to make an xPL interface?
>
> Just some food for thought.
>
> Cheers,
>
> Chris Williams
>
>
>
>
>
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