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- Xref: sparky comp.dcom.lans.misc:661 comp.dcom.lans.ethernet:1668
- Newsgroups: comp.dcom.lans.misc,comp.dcom.lans.ethernet
- Path: sparky!uunet!nih-csl!helix.nih.gov!rohrernl
- From: rohrernl@helix.nih.gov (Nathan Rohrer)
- Subject: Re: Cabletron MR9000s
- Message-ID: <rohrernl.15@helix.nih.gov>
- Sender: postman@alw.nih.gov (AMDS Postmaster)
- Organization: National Eye Institute, National Institutes of Health
- References: <1992Aug19.123754.6749@super.org>
- Date: Wed, 19 Aug 1992 16:57:59 GMT
- Lines: 48
-
- In article <1992Aug19.123754.6749@super.org> rsh@super.org (Randall S Hammel) writes:
-
-
- > I was curious if any other people out there are using
- >Cabletron MR9000 multiport repeaters, and if so have they had
- >any problems with power supplies on these units.
-
- >We have about 30 or so of these in use on our network, and have found
- >there power supplies to be very flakey. Even now with all of them
- >protected by UPS's, the last time we had a scheduled system wide power
- >outage there were symptoms of flakey power supplies in about 25 percent
- >of the units for the first few minutes after they were powered back
- >on. The symptoms are the continuous blinking on and off of the lights
- >(receive, collision, and fault) on the front display.
-
- > In many cases the units have never recovered and have been
- > shipped to Cabletron for repair. This approach to the problem
- >has been unsatisfactory because it is too time consuming (two weeks at
- >best to get the unit out of the facility, repaired and back) and too
- >expensive (typical power supply replacement costing $250). We had at
- >one point queried Cabletron tech support asking if we could just
- >acquire the power supplies ourselves from them and have our own
- >technicians do the repairs on site, but Cabletron indicated that they
- >wouldn't provide the power supplies.
-
- We just went through the same problem. We have four of those repeaters and
- when we had a power outage two of them gave us the power problems (flashing
- lights problem). One of the two never came back up and we had to ship it
- off to Cabletron for repair.
-
- > Has anyone else had this problem and managed to come up
- >with a better solution?
-
- Sorry.
-
- > Randall S. Hammel
- > rsh@super.org
- > (301) 805-7414
-
-
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