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тАО11-24-2003 08:23 PM
тАО11-24-2003 08:23 PM
Networking
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тАО11-24-2003 08:37 PM
тАО11-24-2003 08:37 PM
Re: Networking
I guess the best answer in this case will be given my an electrician!
Why over the roof? why not through ground, it will be safe and will less wear-and-tear your cable .
Best regards,
Lokesh
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тАО11-24-2003 09:25 PM
тАО11-24-2003 09:25 PM
Re: Networking
Purely Personal Opinion
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тАО11-24-2003 09:27 PM
тАО11-24-2003 09:27 PM
Re: Networking
we tried this in Zimbabwe many years ago, but had problems with differences in the earth potential in each building. Although it might work in the short term it is unreliable and we opted to put in a fibre bridge between the buildings. Lightning of the sort you get in Southern Africa definitely causes problems with ethernet between buildings!
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тАО11-24-2003 10:21 PM
тАО11-24-2003 10:21 PM
Re: Networking
As for lightning: direct hit is something you can just wait for. It will happen, and I don't think your insurance (or is it: assurence, I always forget ;-)) will hold on that. Shielded cable or not - your systems will be damaged severely. Shielding will limit other interference (note: LIMIT, not PREVENT) that could otherwise comprimse the connection.
I think the cost of prevention of damage and dataloss, and the cost of insurance weighs the cost of fiber connection.
OpenVMS Developer & System Manager
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тАО11-24-2003 11:16 PM
тАО11-24-2003 11:16 PM
Re: Networking
We connect two building across a street with two WLAN-Bridges, it is fast, save, simple to install and cheap.
Disadvantages:
Decnet only via Decnet/Osi over IP
No Lat
Regards
Dieter
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тАО11-25-2003 12:31 AM
тАО11-25-2003 12:31 AM
Re: Networking
I think RF is best solution.
Antoniov
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тАО11-25-2003 01:42 AM
тАО11-25-2003 01:42 AM
Re: Networking
Didn't think of it. RF goed be ok but what about:
* Radio interference
* Security (not only unauthorized access. Think of leakage of data as well)
* Bandwidth / Speed
* Legal limitations (forced by government rules)
* (there could be more ....)
Anyway: to be taken in account!
Willem
OpenVMS Developer & System Manager
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тАО11-25-2003 03:30 AM
тАО11-25-2003 03:30 AM
Re: Networking
Restrict access to the mac addresses of the bridges, and choose a good antenna with reduced stray.