25 Jul
2013
25 Jul
'13
9:40 a.m.
On 07/25/2013 10:03 AM, Henk Gooijen wrote:
It sounds to me like the DELUA is the way to
go; I'll see about
tracking one down.
As for unibus, any advice at all would be great.
If it matters, my
11/34a has
both cache and floating point, 128kw memory, but I don't know if
there are
any operating systems with tcp/ip that will run on it.
Thanks for any thoughts.
On the UNIBUS you have two choices (that I know of).
It is either DEUNA, or DELUA.
DEUNA is two hex boards with one or two (?) interconnect ribbon cables.
DELUA is one hex board and has an MC68000 on-board.
The DELUA is more "modern", and I seem to remember that you can
have trouble if you use the DEUNA on a busy network.
One other matter.
The DEUNA is *very* power hungry !! As you say that your 11/34A has FP and cache (then it
is called an
11/34C,
IIRC, please correct me if I am wrong)
I've never been really clear about how
the naming thing works. It makes
sense that an 11/34A with cache would be an 11/34C, but what does one
call an 11/34A with floating point and _no_ cache board?
, you will have to do some math.
The 11/34A with FP and cache is just about what the +5V PSU can handle.
I'd
imagine that depends on the enclosure type. I have two, one is the
9-slot-backplane only (H777 PSU), the other is the full-sized full
height job. I'll have to check into the capabilities of the 5V PSU on both.
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