RE: Which cable to use for PIR sensor

["Nikola Kasic" <nikola@xxxxxxx>]

Cables definetly must be hidden (Orla is probbably more tolerant :-).
>From your replies I found that it doesn't matter, really. Any of them
will
work. I'll put solid, shielded then. Solid goes into walls, while
stranded
is more for connecting non-fixed devices. Shielded is like 3x more
expensive, and seems not to be essential for domestic use.
Therefore I'll go for Cat5e, the best I found is ?26.59 inc VAT for reel
at
www.redstore.com <http://www.redstore.com> .
I'll buy a reel now. 
Cheers,
Nik


-----Original Message-----
From: Graham Howe [mailto:graham@xxxxxxx]
Sent: 14 July 2002 22:07
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Which cable to use for PIR sensor



CAT5e comes in shielded and unshielded, stranded and solid. The cheapest
is
unshielded solid with the most expensive being shielded stranded.
Shielded
cable is used to reduce the risk of interference and stranded cable is
used
where flexibility is required (for example the cable coming from the
outlet
in the wall to your appliance). So, that means that majority of
structured
cabling should be unshielded solid CAT5e.

All my structure cabling uses CAT5e, unshielded and solid, including
the
cabling to my PIRs. The only time I used shielded, stranded 8-core
alarm
wire (which is not twisted in pairs) was for my comfort doorphone and
keypads, though I suspect that they could have used CAT5e too. If you
want
to be 'really structured' in your approach to wiring, then you could do
what
I did and actually have your PIRs plugged in to an RJ45 outlet so that
they
can swapped, removed or replaced with some other piece of equipment.
However
that approach is not the neatest, as it means that the wires are not
entirely hidden.

Regards

Graham

-----Original Message-----
From: Tracey Gardner [mailto:tracey.gardner@xxxxxxx]   
Sent: 14 July 2002 21:11
To: ukha_d@xxxxxxx
Subject: [ukha_d] Which cable to use for PIR sensor


I think you'll find that screened, stranded alarm cable is recommended
for
alarm/PIR cabling as opposed to CAT5 which is solid cored.

Tracey


I asume that CAT5, CAT5e, CAT are all fine.
Can someone confirm please?
Should I go for shielded one?
Cheers,
Nik



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