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Cat5e cable for intercom ?

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  • 22-11-2006 8:51pm
    #1
    iplogger1
    Registered Users Posts: 277 ✭✭


    Our electrician wired a run of cable from our porch door to the gates
    with cat5e cable buried underground in a wavin duct.
    He originally mentioned poly-poly cable but I was unable to get it in
    the electrical wholesalers. The wholesalers said that poly-poly was just
    more weather resistant and the typical intercom systems just use 2 or
    so pairs within the cable. I know I could have purchased outdoor grade
    cat5e but I reckon by running it through the wavin duct it should be ok.

    Any comments on this approach. The electrician seems to recall someone
    mentioning to him something about 2 runs of cat5e cable. That doesn't
    make sense to me.

    Anyone familiar with the wiring requirements for outdoor intercom system?

    --Ian


Comments

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    #2
    antoinolachtnai
    Registered Users Posts: 9,807 ✭✭✭antoinolachtnai


    It is probably ok. I have seen different intercom systems, all with different wiring requirements. But 8 cores should be enough to do. It would have been better to use the outdoor-grade cable, but what you have will probably do.


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    #3
    Skellington
    Closed Accounts Posts: 783 ✭✭✭Skellington


    cat5e is fine. its mechanically protected with the conduit, and chances are that anything sharp enough to break through the wavin would also cut the outdoor cable. but if he can, it'd probly be better if he ran two cat5's and maybe a coax(incase you want a screen).
    "better to be looking at it, than looking for it"


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    #4
    iplogger1
    Registered Users Posts: 277 ✭✭iplogger1


    What is the deal with 2 cat5e runs ?

    redundancy in case one breaks ?

    --Ian
    PunK05 wrote:
    cat5e is fine. its mechanically protected with the conduit, and chances are that anything sharp enough to break through the wavin would also cut the outdoor cable. but if he can, it'd probly be better if he ran two cat5's and maybe a coax(incase you want a screen).
    "better to be looking at it, than looking for it"


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    #5
    Skellington
    Closed Accounts Posts: 783 ✭✭✭Skellington


    well, yeah, but also you mentioned he originally wanted poly-poly which has 11 pairs(i think, cant remember off hand) and thats 22 cables. and depending on the system your getting he could need more cores, or depending on the length of the run he might need to double up on the cable to increase the signal strenght.


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    #6
    iplogger1
    Registered Users Posts: 277 ✭✭iplogger1


    Thanks PunK05

    I think I see it now. I guess it's like speaker wire. The more strands
    of copper the better the signal when going out a larger distance.
    I'd say the distance from porch to gates in our cases is a good
    50-60metres.

    Maybe two cores would have been a better idea. I'll see if there is
    still time for him to fish through another core.

    --Ian
    PunK05 wrote:
    well, yeah, but also you mentioned he originally wanted poly-poly which has 11 pairs(i think, cant remember off hand) and thats 22 cables. and depending on the system your getting he could need more cores, or depending on the length of the run he might need to double up on the cable to increase the signal strenght.


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