Re: Alarm to connect to CBus (excluding Comfort)

["noel_pilot" <HA@xxxxxxxxxxxxxxxxxx>]

Can someone please tell me what kind of hotels i need to stay in to
see cbus kit!!! lol ;)


--- In ukha_d@xxxxxxx, Kevin Hawkins <yahoogroupskh@...> wrote:
>
> The security aspect of C-Bus has always intrigued me.  Is there some
> device or application that can report losses of devices on a C-Bus
> network and also prevent new devices being introduced ?   Maybe an
> encrypted C-Bus or something ? Presumably an install like Wembley must
> have had these issues resolved.
>
> I always wondered if I checked into a C-Bus wired hotel with C-Bus
> toolkit on my laptop what access I could get to their C-Bus network
from
> the lightswitch cabling...
>
>    K
>
> K. C. Li wrote:
> > On Mon, 2 Jun 2008, Mike Griffiths wrote:
> >
> >
> >> The main difference is in the connection
> >> With C-bus if you cut the cable the PIR stops working and
possibly the
> >> whole C-bus network !
> >>
> >
> > It depends on how the C-Bus system is wired. If it is wired
radially, as
> > it is commonly the case, cutting the wire would only disable that
branch
> > without affecting other branches.
> >
> >
> >> With an alarm system if the cable gets cut the alarm goes off
as the
> >> alarm system is still working
> >>
> >
> > I am not advocating the use of a C-Bus system as a security
system but
> > there is nothing inherently designed or omitted in C-Bus to make
it
> > impossible to achieve. There are enough spare wires in the C-Bus
cable to
> > allow for a simple temper circuit to be incorporated. eg.
Connecting the
> > "temper circuit" of a closed loop to a L5504AUX
Auxiliary Input
Unit to
> > detect an open circuit and trigger something within C-Bus.
> >
> > Regards,
> >
> > Kwong Li
> > li@...
> > Laser Business Systems Ltd.
> > http://www.laser.com
> > http://www.cbus-shop.com
> >
> >
> > ------------------------------------
> >
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> >
> >
> >
> >
> >
>



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