RE: Motion Sensors

["Ian B" <Ian@xxxxxxx>]

Hi Tony

It is indeed 12 volts from a supply(ies) under the stairs i.e. node 0. I
use
CAT5. It is doubled where necessary because of the current draw but that
is
only one place. Keep an eye on the current per pair though. I think
something like 300 ma is the max. Double the pairs and almost double
the
current available. I have 1.2 amp supplies for the rooms where the ring
runs.

Ian B

>-----Original Message-----
>From: Tony T [mailto:tonyt@xxxxxxx]
>Sent: 09 August 2002 21:16
>To: ukha_d@xxxxxxx
>Subject: Re: [ukha_d] Motion Sensors
>
>
>> I found this exact problem and used a beam break from Maplins. I
found
>there
>> were problems with HV not noticing the change in state if it was
doing
>> something else at the time. I got round this by making a simple
signal
>> extender. Works a treat now and there are details on my site under
my
>house
>> and projects/baby paws.
>
>Ian, Thanks for the info.
>
>On the same page you mention running 12v everywhere, is this DC?
>If so, do you have any details on how you run the 12v around (I'm fed
up of
>having loads of wallwarts)?
>
>Many thanks
>Tony
>
>
>
>
>
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