Ethernet between buildings

Jeffrey C Honig ($JCH%CLVM.BitNet@ucbvax.Berkeley.EDU)
Fri, 29 Aug 86 14:28:27 EDT

One of our departments is installing some diskless Sun workstations in
two buildings with a Sun file server in another. This of course
necessitates the use of Ethernet between the buildings (which are right
next to each other). Up here in Northern NY we get alot of
thunderstorms during the summer and fall (especially this year!) and are
worried about lightning damage.

We asked Sun for Ethernet configurations guidelines and were sent a copy
of DEC's "Ethernet Installation Guide". This manual recommends that
Fiber be used between buildings because it "Eliminates any potential
interbuilding grounding problems". We know there are no grounding
problems. DEC does does give information about running baseband
between buildings but does not even mention lightning arrestors.

The department doesn't want to spent the 10k to use fiber but I don't
want to recommend that they use baseband until I see some written
documentation on lightning protection.

Does anyone have any experience in this area or can anyone recommend
some specifications that deal with the subject?

Thanks much

Jeffrey C Honig
Schuler Educational Resources Center
Clarkson University
Potsdam, NY

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