Re: Interfacing With Clipsal Neo Switches

["Patrick Lidstone" <patrick@xxxxxxxxxxxx>]

--- In ukha_d@xxxxxxx, "David Buckley" <db@e...> wrote:
> --- In ukha_d@xxxxxxx, "Anthony Draper"
<anthonyd@n...>
> wrote:
>
> > We are interested in using the Clipsal Neo switches
> > with applications other than the Clipsal system. Does anyone
> > have details of the physical interface with the switches as
> > well as the protocol used. We intend to use a PIC
> > driven board to talk to the switches.
>
> Non-trivial.
>
> CBus components are connected together using a two wire bus, which
> distributes power and carries data.
>
> Clipsal provide the mechanisms to interface to their bus system at
a
> RS232 level by using their interface adapter, some details of the
> protocol of which you can get from their website by an online
> signup, deeper details require that you sign up to the Clipsal NDA.
>
> The wire level protocols are not published, not even under NDA.
>
> The cost of the RS232 adapter is more than a neo.
>

But as I found out at the weekend, the Dynalite switches use bog-
standard RS485 and the wire protocol is freely available - perhaps
these would be a suitable alternative for your application?

Patrick