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lightning crashes network

By triiifashions ยท 7 replies
Aug 24, 2007
  1. i have a network set up over 1200 ft of cat5e outdoors

    i had three houses hooked to the network and two security cameras

    i had made birdhouse router cases and hung them in the trees on the way down the mountain then my other two routers were in the houses

    the cameras were also in birdhouses in the trees pointed at the gate coming onto our property

    when the lightning hit it took out everything it must have hit the line somewhere

    i was wondering how to set this up so i dont have to worry about lightning

    thanks in advance

  2. poertner_1274

    poertner_1274 secroF laicepS topShceT Posts: 4,172

    You will probably need to shielded cable. I know in college we had a wire running from the top of our 2 story house, to the top of an apartment well below (So the line was way above any obstructions). We had problems with lightning, and had to use a shielded cable. This still gave us sketchy results, but it definately worked MUCH better than regular cable.
  3. AlbertLionheart

    AlbertLionheart TechSpot Chancellor Posts: 2,026

    Where CAT5e is exposed like this we often bury it in hosepipe if we can. If not CAT6 works but means you need new routers.
  4. jobeard

    jobeard TS Ambassador Posts: 10,432   +801

    You need shielded cable and to earth ground every connection point:

    entry to house ============device============device===========device
                   |          |     |           |      |         |
                   +          +     +           +      +         +
    If you take a second strike with the grounded cables, you may loose a segment
    between devices due to heat, but you should not loose the devices again.

    I agree that placing the cables underground would be better.
  5. triiifashions

    triiifashions TS Rookie Topic Starter Posts: 129

    a ground on the power lines?

    or on the cat5e

    i wouldnt know how to ground the cat5e
  6. jobeard

    jobeard TS Ambassador Posts: 10,432   +801

    ground everything possible, especially the cat5e!
  7. ravisunny2

    ravisunny2 TS Ambassador Posts: 1,986   +12

    It is common here for all multistoreyed building to have a lightning conductor.

    But that might be an expensive solution.
  8. Rolfman

    Rolfman TS Enthusiast Posts: 95

    Why dont you try using PoE

    Power over ethernet should also work , Lightning wont stand a chace against it , no grounding devices required.

    Or go wireless symply get a 14DBI Wireless anthena (unidirectional) and target multiple repeaters or acces points. Remove the regular anthena and place an USRobotics 14DBI anthena on every Broadcasting wireless device.

    Check the USRobotics website for more information about 14DBI anthenas or PoE Devices.

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