19 Apr
2005
19 Apr
'05
7:44 p.m.
On 4/19/05, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
The 11/730 CPU... normal configurations seem to be :
A rack containing the CPU _only_, with the TU58 cartridge tape drive
under it, both drivs accessible from the front of the rack. You need a
second rack for disks, etc. Actually, I've never seen that one.
That's the one I haven't seen either. I'd be curious to find if
there's room in the CPU bay for a DD11-DK or two.
A rack containg the CPU box, with one TU58 cartridge
on the front of the
CPU and one round the side...
Much the same, but with a TS05 (Cipher F880) 9-track mag-tape drive in
place of the RL02, and a TSU05 controller in one of the Unibus slots.
Ah... I'd forgotten about that configuration, but I don't think it was
very common. A TU80 alongside was somewhat common.
There are 2 serial ports (Console and Remote
Diagnostics) built into the
CPU. You can add things like the DZ11 if you want more.
There's room in the I/O bulkheads for a DMF-32 (8 async, 1 sync, 1
printer), and IIRC, it was somewhat common.
I am not sure how much spare capacity there is on the
CPU power supply.
You may well need an external BA11 mounting box for some of those boards.
I personally wouldn't try to run 5 memory boards, and a full Unibus if
that Unibus was trying to power a DEUNA/DELUA or a UDA50 without first
calculating _exact_ DC consumption. I've loaded the memory bus and
the Unibus, but not with such power-hungry devices.
I am _still_ looking for the CPU board printset... I
don't think it's on
bitsavers.
Hmm... I had no idea. I have a several-inch-thick stack of prints for
the 11/730-Z (the configuration we've been discussing)... I know it
covers cable runs (which are quite intricate in that box), and it
_may_ have CPU board prints; I'll have to check.
-ethan