Feb 17, 2013
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Hi Guys,
I'm going to install possibly a couple of phone points and burglar alarm system in new build. Just wondering though, can Cat 5 (3 pairs) cable be used?
From memory phone cable cores are solid drawn. alarm cable stranded. I've never seen or used Cat 5 cable before.
Plumber on site has a drum of Cat 5 cable which is going to be used for the Central Heating system, remote stats , programmers. Any thoughts? Thanks
 
perfectly acceptable, cat 5 is used for transmission of data, so is more than capable of doing what you want
 
perfectly acceptable, cat 5 is used for transmission of data, so is more than capable of doing what you want
Out of interests.....is Cat 5 solid conductors? Is it suitable for burglar alarms installs also? Also is it more costly than standard alarm cables?
 
Yes cat5 is suitable.
 
Also...chatting to CCTV company whereby I've purchased RG59 +2 cable for cameras. Got chatting about interlinking TV system to use as monitors as well. Mentioned I must use 75 ohm cable. On checking what I've already installed..RG6 cable...panic started to set in..googled it, turns out to be 75 ohms. but it is a lot smaller in size than RG59. Any one have any thoughts?
 
It's important to use the correct cable with video (and the matching plugs and sockets) miss-matched components may appear to work (especially for short distances) but there will be losses and miss matched plugs / sockets will not be a perfect fit.
 
Just use the blue, blue/white in the cat5 as for voice that's what the blues are for.

dont use cat 5 for the intruder alarm.

RG59 is preferred for CCTV and most bnc's will be made to fit rg59, you can get bnc's to fit RG6 but if your connecting to a tv it can be better to fit a yellow phono plug each end of your rg6 then if your dvr only has bnc just use phono to bnc.
 
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Also...chatting to CCTV company whereby I've purchased RG59 +2 cable for cameras. Got chatting about interlinking TV system to use as monitors as well. Mentioned I must use 75 ohm cable. On checking what I've already installed..RG6 cable...panic started to set in..googled it, turns out to be 75 ohms. but it is a lot smaller in size than RG59. Any one have any thoughts?

Rg6 is the normal standard for cctv or if coupled with power its known as shotgun cable. problem is there's different grades of Rg6 i used copper core with copper screening+foil
 
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Thanks Mykey and Swcfisher. Just a re-capp. I've used RG59 + 2 (shotgun) for the CCTV.
I've used RG6 coax for the TV system. Both cables are classed as 75 ohms
 

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If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
United Kingdom
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Retired Electrician

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Phone wiring using cat 5 cable
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Security Alarms, Door Entry and CCTV (Public)
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