DecServer 550 chassis

jwsmobile jws at
Mon Oct 19 02:57:19 CDT 2015

On 10/19/2015 12:42 AM, Pontus Pihlgren 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.
> /P
Thanks for the link.  I've already been analyzing that.  Tomorrow will 
pull it out, clean it off and see what more details can be had.  The KDJ 
was an interesting surprise.

We may have enough to do the conversion talked about in the articles he 
has, but they aren't for the faint hearted w/o reading all that he has 

We may have the RQ controller which is pretty much an essential bit to 
have.  The disk drive is another matter.  Will take some rummaging 
around to find a suitable candidate.

> On Mon, Oct 19, 2015 at 12:30:00AM -0700, jwsmobile wrote:
>> These are the cards in the DecServer 550.  Looks to be an expansion
>> chassis with 108 ports or so.
>> Thanks
>> Jim
>> Photos of the DecServer 550

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