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Ethernet Impedance Question

Discussion in 'Electronic Design' started by Terry, Sep 24, 2008.

  1. Terry

    Terry Guest

    I would like to log certain events taking place on my cable high-speed
    (HAH!)internet connection. In particular, I want to log date/time to a
    file when I lose the internet connection here, and again when it is
    restored. The detection of the data stream should be pretty
    straightforward, but I don't want to upset any chactaristics, nor
    performance, in the process.

    I will be using a dedicated machine in another building on our home
    network for the software so tapping into the activity indicator on the
    modem or router, both of which are in the home, wouldn't be practical.

    So, does anybody out there have any specs on the impedance across the
    pair in a Cat-5 cable?

    TIA--
    Terry--WB4FXD
    Edenton, NC
     
  2. Your router has the event log. It is all in there already.


    Vladimir Vassilevsky
    DSP and Mixed Signal Design Consultant
    http://www.abvolt.com
     
  3. I wrote a stupid little VB6 app that pings my ISP's DNS and logs the
    results. It pings once per second for two minutes, then every minute
    until there's a disconnect. When the connection comes back up it goes
    back to ping/sec for two minutes. Dumps everything into a TXT file.

    It's not pretty (for instance the DNS IP address is hard-coded) but it's
    pretty straightforward.


    There's prolly something on SourceForge that does the same thing only
    better.
     
  4. Terry

    Terry Guest

    =>
    =>I would like to log certain events taking place on my cable
    high-speed
    =>(HAH!)internet connection. In particular, I want to log date/time to
    a
    =>file when I lose the internet connection here, and again when it is
    =>restored..........

    Thanks to both of you! Can you tell I'm into the guts of things too
    soon, and can't see the forest because of the trees?

    Story of my life! Thanks again........
    Terry--WB4FXD
    Edenton, NC
     
  5. Terry

    Terry Guest

    On Wed, 24 Sep 2008 23:38:18 -0500, "Gordon S. Hlavenka"

    =>I wrote a stupid little VB6 app that pings my ISP's DNS and logs the

    =>results. It pings once per second for two minutes, then every
    minute
    =>until there's a disconnect.

    Gordon--Would you be willing to share the code with me?

    TIA--Terry
    Terry--WB4FXD
    Edenton, NC
     
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