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RE: Which cable to use for PIR sensor



Nik,
 
One further thought that's just occurred to me - you may want to use stranded "alarm" cable after all. A bundle of (say) 10x alarm cables is much smaller than 10x Cat5 - it could be an issue if you're routing a lot of cables to one place with limited access.
 
The smaller diameter of the alarm cable allowed me to get more cables through a given number of holes than if I'd used Cat5 instead.
 
Hope it's not too late for you,
 
Tim H.
(just my 2p :-) )
 
-----Original Message-----
From: Nikola Kasic  
 
Thanks Campbell,
It will go through the walls so it will be Cat5e, that I already ordered. I'll have 200m left on the reel, so I'll use it for PIR.
Cheers,
Nik
-----Original Message-----
From: Campbell

Nik,
 
Alarm cable is usually stranded to permit flexing....Cat 5 cable is better quality but not as flexible.. it is fine for PIR's if the route is fixed and not subject to the cables being moved...decorating etc... additionally it is important to check continuity before alarming the system as the cat 5 can break while being routed (same happens with stranded, but not so often)....
 
Using shielded is a waste of money...it is not needed... for a direct wired contact, which is not affected by interference...
 
just my 2p worth
 
hth
Campbell
 
 
----- Original Message -----
Sent: Sunday, July 14, 2002 7:50 PM
Subject: [ukha_d] Which cable to use for PIR sensor

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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