Xref: utzoo comp.protocols.tcp-ip:3436 comp.sys.dec:657
Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!hubcap!ncrcae!ncr-sd!ncrlnk!ncrpcd!wright!jsloan
From: jsloan@wright.EDU (John Sloan)
Newsgroups: comp.protocols.tcp-ip,comp.sys.dec
Subject: Plenum-Rated Ethernet Transceivers
Keywords: plenum transceiver ethernet
Message-ID: <859@wright.EDU>
Date: 10 May 88 17:23:56 GMT
Organization: Wright State University, Dayton OH, 45435
Lines: 28

I've seen references on the net to plenum-rated ethernet transceivers
but have never read any specific citations. Plenum-rated transceivers
could be used in the plenum, the environmental air space above drop
ceilings (and other places). Plenum-rated transceiver and coax cable is
common.

I note that the standard DEC transceiver says on its label very
specifically that it is NOT plenum rated, as do the BICC and 3COM
transceivers we use. The Cabletron transceiver literature says
"conforms to UL 910 and NEC 725-2(b) requirements for installation in
air-handling spaces". A quick phone call to our rep had him reading this
verbatum over the phone, which wasn't much help. Other phone calls have
yielded similar results.

A call to our University electrician, who is supposed to know at least
the codes, was not of much use.

So here I am wasting everyone's bandwidth. Does anyone have specific
recommendations, including vendor name and part number? If anyone else
is interested, I'll investigate it from there and summerize results.

Thanks!

-- 
John Sloan, The SPOTS Group    Wright State University Research Building
CSNET: jsloan@SPOTS.Wright.Edu  3171 Research Blvd., Kettering, OH 45420
UUCP: ...!cbosgd!wright!jsloan          +1-513-259-1384  +1-513-873-2491
Logical Disclaimer: belong(opinions,jsloan). belong(opinions,_):-!,fail.