21 Feb
2008
21 Feb
'08
2:05 p.m.
tiggerlasv at aim.com wrote:
As you've probably read in a previous reply, it
doesn't really matter
what type of slot it goes into, as long as you're not interrupting
the path of a 2-board set. i.e., don't try to put it in between
the boards of an RLV11.
Now that I think about it, I guess it's a little moot, since
you're in an 9278-A backplane, which only has 3 CD slots.
The only way you could even use a 2-board CD-interconnect
(such as the RLV11) is with a single-board CPU with on-board
memory, such as an 11/53 or 11/93. Otherwise, your first
two CD slots would already be full. ;-)
Jerome Fine replies:
If my memory serves me correctly (which is not very
frequent these days), I seem to remember receiving
a BA23 box with an M8189 in the top slot and the
RLV11 in to next 2 slots. The memory for the system
(normal PDP-11 Qbus memory) was in slot 4.
As far as I know, there might be a delay factor
associated with placing the memory below the RLV11,
but it still functions correctly.
Since your reply seems to specify that the RLV11 will
only work when the memory is on board the CPU, I thought
it might be helpful to mention my (possible?) experience.
Sincerely yours,
Jerome Fine
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