Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!agate!ucbvax!UHURA.CC.ROCHESTER.EDU!mead
From: mead@UHURA.CC.ROCHESTER.EDU (Ted Mead)
Newsgroups: comp.sys.proteon
Subject: Re: p4214 vs Cabletron multiport??
Message-ID: <8902091749.6713@uhura.cc.rochester.edu>
Date: 9 Feb 89 17:49:50 GMT
References: <8902082113.AA02115@dainichi.tn.cornell.edu>
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Scott,

We had the same problem when connecting our NYSERNet Proteon router, with
an Interlan 3010B (old Ethernet Interface, to one of our backbone MT-800s.

The problem has to do with the signalling coupling between the Ethernet
interface and the MT-800. The Interlan uses DC coupling while the MT-800 is an
AC coupled device. For some odd reason, howerver, you can hook up a DEC DELNI
to the Proteon (old Ethernet interface) and that works find.

It wasn't really clear if the Annex, RT PCs, and p4200 was the problem so if
this wasn't the answer that you were interested in I apologize.

Incidently, the newer version of the Interlan interface (3010A) works fine
with the MT-800. You can select AC or DC coupling with that interface.

Also, a good person to contact at Cabletron is Mike Hart (800)526-8378. He
is aware of this problem and if you want a more indepth explaination, he could
probably help you.

Thanks,
Ted