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- Newsgroups: comp.dcom.lans.ethernet
- Path: sparky!uunet!mcsun!news.funet.fi!hydra!klaava!vhalkka
- From: vhalkka@klaava.Helsinki.FI (Vesa Halkka)
- Subject: Re: Thinwire specs/problem?
- Message-ID: <1993Jan10.221751.6399@klaava.Helsinki.FI>
- Organization: University of Helsinki
- References: <1993Jan9.110551.1@kodiak.sfpp.com> <C0M9sL.Mxs@iron.hq.aflc.af.mil>
- Date: Sun, 10 Jan 1993 22:17:51 GMT
- Lines: 35
-
- In <C0M9sL.Mxs@iron.hq.aflc.af.mil> fenton@iron.hq.aflc.af.mil (George I. Fenton) writes:
-
- > Max coax segment: 185 meters (about 600 ft)
-
- This one comes from RG58 attenuation.. better cables are available.
- Belden 9907, for example.
-
- > Max number of link segments: 2
-
- This comes from timing and *old* repeater specs.
-
- > Max stations per segment: 30
-
- This comes from BNC attenuation/reflection. It is actually 60 BNC
- connections.. if you have any kind of boxes with connectors at
- the wall this number is smaller.. BNC connections reduce it to 15,
- some non-breaking systems give only 10 or 12 stations.
-
- > Min distance between stations: 0.5 meters
-
- But where does this come from ?
-
- > Max number of stations: 1,024
-
- And this.. something with collision recovery algorithms ?
-
- --
- Vesa Halkka -O___/
- University of Helsinki CC: ( / vhalkka@helsinki.fi
- Centre for scientific computing: ~~~~~ vhalkka@csc.fi
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