DecServer 550 chassis

Ethan Dicks ethan.dicks at
Mon Oct 19 09:32:37 CDT 2015

On Mon, Oct 19, 2015 at 3:42 AM, Pontus Pihlgren <pontus at> wrote:
> Interesting. I thought Tthe DECserver 550 was merely the big brother in
> the terminal server line. But it looks like it is essentially a
> PDP-11/53 with 1.5MW of ram, you need new boot roms though. Pretty nice.

Yep.  It's essentially an S-box KDJ11 with different ROMs.  I happen
to have a CPU board from one, but not the box itself.

One of these days, I plan to burn "real" PDP-11 ROMs and bring 2.11BSD
up on mine.  That and my Pro380 are my only KDJ11 machines.


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