What are the differences between the DEC RP11-C and RP11-E controllers?

Paul Koning paulkoning at comcast.net
Mon Jun 22 15:39:51 CDT 2015

> On Jun 22, 2015, at 4:24 PM, P Gebhardt <p.gebhardt at ymail.com> wrote:
> Hi list,
> the subject sais it all: While seeking for information on the RP11-C on the web (I saved a RP03 from being scrapped 3 years ago), I came across a hint, that there was also a RP11-E controller. At least using google, there is practically not a single information/document on the RP11-E other than its existence in the past. Is the difference maybe just a different input voltage specification (110V vs. 220V)?

I don’t think so.  

The 1976 Peripherals Handbook lists the RP11-C.  It shows two variants of the controller: RP11-CE (115 V, 60 Hz) and RP11-CJ (230 V, 50 Hz).  It also shows two variants of the drive: RP03-AS (230 V, 60 Hz) and RP03-BS (230 V, 50 Hz), both of those are three phase.


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