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Point to Point 4 meg wireless pipe

Discussion in 'Networking (Hardware & Software)' started by Scott Smith, 2009/03/06.

  1. 2009/03/06
    Scott Smith

    Scott Smith Inactive Alumni Thread Starter

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    Scott Smith,
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  2. 2009/03/07
    TonyT

    TonyT SuperGeek Staff

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  4. 2009/03/07
    Scott Smith

    Scott Smith Inactive Alumni Thread Starter

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    Tony thanks,
    I will dig into those links over the weekend. I have some engineers working on this that will be getting with me on Monday.

    It's a hospital with a new off site vacant facility that they want to monitor the 32 camera video surveillance system in house to keep from having to man the facility with 24/7 security.
    They don't want to commit to a permanent copper or Fiber connection because of long term contracts with the ISP. Once a tenant is found this will all go away.
     
    Scott Smith,
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  5. 2009/03/07
    TonyT

    TonyT SuperGeek Staff

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    Actually, to just monitor the video feeds there need not be an Internet connection at all. Most newer commercial surveilance DVRs will have a network port or built in wifi adapter & a mini Web server. The DVR that the cameras connect to can be assigned a static lan ip address and camera feeds can be monitored using the software that comes w/ the DVR, usually a java applet viewer. You just need an access point at the main building and a bridge or client at the other, and antennas aimed correctly.

    Cheaper method would be to get a business dsl line at the new facility w/ a static ip, about 100/mo through Verizon. Then the DVR/cameras can be accessed remotely on port 80 or 8080.

    I've been experimenting with a similar setup to be implemented at my mother's & brother's homes in PA. Houses are almost a block away w/ line of sight in a very small zone. I'm using 2 linksys wrt54g routers running dd-wrt. One will be at my brother's setup in ap mode (no dhcp) and the other will be in client mode at mother's house. (in client mode the router acts as a wifi client and the 5 ports can be used by comps which share the wifi client. According to tests I've done here in VA, the setup will work if I use at 7dB omni antennas on the wrt54g routers and place them in each attic.

    My bro has dsl, mom has none. When I go there (at least 4-5 times/year) I'm getting tired of having to go to bro's house to use Internet. With the setup I'm putting together I'll be able to use my brother's Internet at my mom's house where I stay when I'm there.
     
    Last edited: 2009/03/07
    TonyT,
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  6. 2009/03/07
    Scott Smith

    Scott Smith Inactive Alumni Thread Starter

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    That's the idea. Maybe I didn't make that clear. It's 1850 feet over an interstate hwy.

    DSL around here is only 256k upstream and that will not cut it.

    It's a pair of Geovision PC based 16 channel DVRs and they will be running the control center server software at the main building with a dual monitor PC.
    16 Cameras on each monitor. It works decent at 1.4Mb upstream but 256k will never work.

    We have some sights with DSL and 4 channel DVRs. The refresh rate is 2 frames per second at best.
     
    Scott Smith,
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  7. 2009/03/08
    TonyT

    TonyT SuperGeek Staff

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  8. 2009/03/08
    Scott Smith

    Scott Smith Inactive Alumni Thread Starter

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    I'll check it out. Sounds too good to be true. ;)
     
    Scott Smith,
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  9. 2009/03/12
    Scott Smith

    Scott Smith Inactive Alumni Thread Starter

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  10. 2009/03/13
    TonyT

    TonyT SuperGeek Staff

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    I dig this feature:
    Proxim uses Atheros chipsets (at least they used to). I have a Proxim pcmcia card w/ an external antenna jack that served me well in the past.
     
    TonyT,
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