ACE Key codes (xx2247 etc.)

Fred Cisin cisin at
Thu Feb 25 20:04:17 CST 2016

On Thu, 25 Feb 2016, Jay West wrote:
> Old thread - I know that there was lots of talk about the DEC PDP XX2247
> key. I don't think I've ever seen/heard any discussion of memorializing
> others (non-dec).... and we should :)

Date: Mon, 25 Apr 2011 10:22:32 -0400
From: Ethan Dicks <ethan.dicks at>
     <cctalk at>
Subject: Re: KEYS

He described the basics, in regards to the XX2247.

With a code book, the key number (XX2247) is all that is needed.
Without a code book, but with depth and spacing info, the list of cuts is 
what is needed.
Without depth and spacing info, the depths of the cuts are needed, along 
with where to put them.

Since we can not assume convenient acces to code books or even depth and 
spacing charts, (any locksmiths here besides Ethan's brother?) we should 
keep track of all three levels.

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