North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: CAT5 surge/lightning strike protection recommendations?
In message <[email protected]>, "Robert E.Seastrom" writes: > > >Todd Vierling <[email protected]> writes: > >> Seriously, though, that's exactly what you're describing, and about what I'd >> suggest in a no-other-option scenario -- but if it's possible to pull fiber >> through the conduits, it would probably be far less expensive long term, or >> even medium term if the physical fiber spools can be bought cheaply enough. > >For those who haven't priced the stuff lately, in spools of 1000' the >per-foot prices of 2-strand MM tight buffered fiber suitable for >pulling in conduits like he (hopefully) has tends to be >price-competitive with cat5 on a per-foot basis. Extra strands are >cheap; the pricey part of fiber is the jacket and strength members; >even super-pure glass is not that expensive overall. > >The expensive parts in the equation turn out to be the termination >trays and connectors. > Also the labor of pulling it, when there's already something in the (shudder) ground. My direct experience with running long-distance underground cable is dated -- let's put it like this; we were dealing with RS-232 -- but the countermeasures to a direct strike on copper cables don't seem to have improved nearly enough... --Steven M. Bellovin, http://www.cs.columbia.edu/~smb
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