Dave McGuire wrote:
On Dec 20, 2011, at 9:03 AM, David Riley
<fraveydank at gmail.com> wrote:
The BA23 (which I'm on the lookout for, if
anyone has a spare; also looking for BA123) is in a similar boat. I don't think any
/23 or /23+s came in a BA23, though.
They did; a lab I worked in many years ago had a direct-from-DEC 11/23 in a BA23
chassis. It was rackmounted with an expansion chassis, running RSX.
The microPDP-11/23plus came in a BA23, usually the "storage heater"
deskside style, but occasionally as a rackmount, which is the same box
but without the skins.
The PDP-11/23 and 11/23+ came in a BA11N or BA11S, and those don't have
conventional rails. Instead they have a wrap-around black steel cover
which is bolted into the rack. It covers the top and the sides, with
two front flanges that bolt to the front uprights of the rack, and
adjustable panels at the rear of the sides which bolt to the rear
uprights. The sides each have a small lip bent under the body which
the BA11N/S box slides onto. From the front it looks a bit like this
(if you have a fixed-width font!):
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Pete Peter Turnbull
Network Manager
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