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need advice on running cat 5 for cctv

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  • 05-02-2013 11:00pm
    #1
    .243
    Registered Users Posts: 1,261 ✭✭✭


    im in need of a bit of advice on cat 5 been run long distance (max 100mtrs for one camera),
    the cameras (x4) are 12v,(operating at 390 mA and suggested power supply at 1250 mA)and i plan on using baluns,
    but im not too sure on the power supply through the cat5 to the cameras as ive no local supply at the camera locations,
    can i use a 4 way dc splitter and 220v/12v power adaptor and while ive been searching for answers ive been comin up with "ground loop" problems,


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    #2
    mossy2
    Closed Accounts Posts: 42 ✭mossy2


    Hello There
    I bought some baluns on ebay recently to see if I could run out to a remote camera via CAT5E. I plan on putting the video through 2 cores and the 12V power through another pair.

    Not much help to you just now but I hope to give it a go next Saturday. I'll let you know how I get on.


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    #3
    Jnealon
    Registered Users Posts: 2,062 ✭✭✭Jnealon


    Check the resistance of the cable, probably .1 ohm per meter, and from there work out the volt drop. Doubling up on the cat 5 will help.
    Can you power the cameras locally


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    #4
    fred funk }{
    Registered Users Posts: 6,827 ✭✭✭fred funk }{


    If you can, run .75 flex for the power and leave the cat 5 for the video.


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    #5
    .243
    Registered Users Posts: 1,261 ✭✭✭.243


    Jnealon wrote: »
    Check the resistance of the cable, probably .1 ohm per meter, and from there work out the volt drop. Doubling up on the cat 5 will help.
    Can you power the cameras locally
    unfortunatly i cant power them locally,


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    #6
    .243
    Registered Users Posts: 1,261 ✭✭✭.243


    fred funk }{ wrote: »
    If you can, run .75 flex for the power and leave the cat 5 for the video.
    i was hopeing to just use the cat 5 on its own as there is a point where all the cables run into a duct back to the power point thats already got cables in it so space is an issue


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    #7
    kub
    Registered Users Posts: 6,546 ✭✭✭kub


    cat 5 is a disaster for carrying power.


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    #8
    mossy2
    Closed Accounts Posts: 42 ✭mossy2


    mossy2 wrote: »
    Hello There
    I bought some baluns on ebay recently to see if I could run out to a remote camera via CAT5E. I plan on putting the video through 2 cores and the 12V power through another pair.

    Not much help to you just now but I hope to give it a go next Saturday. I'll let you know how I get on.

    Hello Again. I connected up a camera today using approx 40m of CAT5 cable and baluns. It worked fine. I used one pair for the video and put the power through the other 3 pairs.


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    #9
    kub
    Registered Users Posts: 6,546 ✭✭✭kub


    mossy2 wrote: »
    Hello Again. I connected up a camera today using approx 40m of CAT5 cable and baluns. It worked fine. I used one pair for the video and put the power through the other 3 pairs.

    You did the correct thing using the remainder of the cores for the power.


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