2015-12-14 17:12 GMT+01:00 william degnan <billdeg...@gmail.com>: > Just to change the subject.. > > There were "S" and an "NC" version of 11/05 high profile system. Why? > > I am curious if any DEC historians here know the reason for two versions of > the same DEC PDP 11/05 *high profile* computer (not talking about the low > profile). There are separate manuals for each type. >
Age? The NC (and ND if you are in 230VAC area) are in the BA11-D chassis which uses the H750 PSU. The same chassis was used by for example 11/35. The H750 PSU has partly the same assemblies as the low PDP-11/05 chassis and then also a H744. The memory system is somewhat different in that the H214 is 8kW and the H217 is 16kW and the former is used in the NC/ND while the S uses the latter. But of course there can be all sorts of other reasons as well. /Mattis > The S seems to be more OEM-ish because it comes in an BA11-K chassis. I am > guessing you'd see an 11/05 S as part of a larger system (PDP 10), whereas > the NC model would be for a stand alone system. ??? > > This S's BA11-K chassis was used by other hardware by simply changing the > backplane. The "NC" model chassis seems to be specifically for the 11/05 I > don't think it appears anywhere else. > > If anyone is interested to see the different models I have a thread on my > site for each type: > 11/05 S > http://vintagecomputer.net/browse_thread.cfm?id=622 > > 11/05 NC > http://vintagecomputer.net/browse_thread.cfm?id=249 > > ... and then there are the 11/10's.... > > -- > Bill >
