Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!mit-eddie!uw-beaver!cornell!batcomputer!tedcrane From: tedcrane@batcomputer.UUCP Newsgroups: comp.sys.dec Subject: Re: DEC e-net products Message-ID: <3102@batcomputer.tn.cornell.edu> Date: Mon, 7-Dec-87 14:20:16 EST Article-I.D.: batcompu.3102 Posted: Mon Dec 7 14:20:16 1987 Date-Received: Sat, 12-Dec-87 11:30:12 EST References: <707@udiego.UUCP> Reply-To: tedcrane@tcgould.tn.cornell.edu (Ted Crane) Organization: Tompkins County Computing, Ithaca, NY Lines: 40 Keywords: Anybody have DELNIs and/or DEMPERs In article <707@udiego.UUCP> stokes@udiego.UUCP (David M. Stokes) writes: >We're planning on using DELNIs and DEMPERs >in various places. What I need is the following >information (to see how deep of a hole I'm in): > > 1 Physical size: DEC says these devices are rack size, Yup, you could put them in a rack. I believe they're the standard 19" width by about 6" high (or less). Even if you buy them with the "standard" white case, you can pull off the case and inside, voila, is a rack mount chassis. > 2 Heat. These devices are supposed to have their own cooling > fans but just how bad is the heat build up?. Will palcement > in a rack exaserbate the heat. I can't speak to this from experience, but none of the units I've seen generated enough heat to worry about. Just leave some space between chasses. One DELNI we had was installed in the corner of a shared office, right next to the steam pipes. It was not too cool in that corner (pun intended), but there was no particular problem with the DELNI. > 3 Any reliability problems? Should I leave plenety of room > for 'future maintenance'? In general, no problems. See gotcha's. > 4 Any gotcha's, i.e. six months down the line am I going > to have to shell out extra bucks for 'maintenance kits', Well... we had some problems with putting both heartbeat and non-heartbeat tranceivers on a DELNI (some from DEC, some from H-P). We never tracked it down, but solved the problem by substututing another DELNI (same rev level). The new one worked fine, and the old one worked fine somewhere else....lousy way to fix a problem, but it worked. No maintenance kits. If you like to be safe, keep them on DEC maintenance. It's unlikely they'll ever fail, but if they do, in comes Dr.DEC and out goes the whole failing unit.