Path: utzoo!mnetor!uunet!husc6!mit-eddie!uw-beaver!cornell!batcomputer!mitch From: mitch@batcomputer.tn.cornell.edu (Mitch Collinsworth) Newsgroups: comp.sys.dec Subject: Re: DEC e-net products Message-ID: <3149@batcomputer.tn.cornell.edu> Date: 11 Dec 87 13:35:41 GMT References: <707@udiego.UUCP> Reply-To: mitch@tcgould.tn.cornell.edu (Mitch Collinsworth) Organization: Program of Computer Graphics, Cornell University, Ithaca, NY Lines: 40 Keywords: Anybody have DELNIs and/or DEMPERs In article <707@udiego.UUCP> stokes@udiego.UUCP (David M. Stokes) writes: >USD is going to be Eathernetting our VMS and UNIX >systems. 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, > (we would place these on shelfs in a rack) but the > local people have no idea just how big they are. Any > clues? DELNI: 3.25" x 7.75" x 19.25" (h x d x w) DEMPR: 4.25" x 7.75" x 19.5" (h x d x w) > 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. Most of ours are on shelves in offices (~72 F). I doubt the heat output is very much. DELNIs have cooling slots on both ends and in the back. DEMPRs on the 2 ends. If you're worried about heat, leave the covers off the rack. With that, I wouldn't expect a problem unless your room is very hot. > 3 Any reliability problems? Should I leave plenety of room > for 'future maintenance'? I have never seen a problem with a DELNI in over 2 years use (we have 5) or with the DEMPR (have 1, installed last winter). Still, you should leave plenty of room for cables. Whenever you change/move/add/remove a system, you might have to get to them for recabling. > 4 Any gotcha's, i.e. six months down the line am I going > to have to shell out extra bucks for 'maintenance kits', > etc?? I haven't had to. -Mitch Collinsworth mitch@tcgould.tn.cornell.edu