Ethernet Impedance Question

Sep 24, 2008 4 Replies
T

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


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V

Your router has the event log. It is all in there already.

Vladimir Vassilevsky DSP and Mixed Signal Design Consultant

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G

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.

Gordon S. Hlavenka Join the Revolution at http://www.ronpaul.com
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T

=>

=>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

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T

=>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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