PDP-11/44 (configuration and identification)

From: Jay West <west_at_tseinc.com>
Date: Fri Oct 1 17:51:22 1999

Closer examination of my newly acquired 11/44 shows the following cards
(right to left, as when standing at the front panel looking back towards the
power supply)....

CIM/M7090
open slot
open slot
DATAPATH/M7094
CONTROL/M7095
MFM/M7096
CACHE/M7097
UBI/M7098
open slot
Standard Memories MM-144
open slot
open slot
open slot
M9202 side 1
M9202 side 2
way down towards the front is a G727A Grant Continuity (about 2"x2")
open slot
open slot
open slot
open slot
open slot
open slot
M9302

Most of these cards intuitively make sense as to their function. But what is
MFM and UBI?

The standard memories MM-144 looks like half the sockets are populated - I'm
thinking 512K?

Is this a runnable system or do I have to add cards or move cards to get a
boot console alive?

The system id tag says 11/44-XX upgraded to 11/44-CA. What's the CA
designation?

There were 3 cables screwed to a metal bar just thrown inside the cpu
chassis:

One was a Berg14 to Berg24, BC44D-09. Wheres this go from/to?
One was Berg24-DB25F, BC44A-10. I'm guessing system console :)
One was 20 pin DIP ribbon to berg20, and the berg 20 plugged into a little
adapter that presented DB25. Any ideas?

Lastly, the front panel switch. Appears 3 position, set left, set center,
and momentary right returning to center. Is this correct operation or is the
switch messed up?

Anyone have a spare TU58? <Grin>!

Just curious about most of this, don't really have time yet to work on it
(still slaving over HP2100's and 7900A and 7906)!

Jay West
Received on Fri Oct 01 1999 - 17:51:22 BST