On Thu, Jan 16, 2014 at 11:40 PM, Charles
<charlesmorris800 at centurytel.net> wrote:
Funny you should ask. In fact I do have an 11/23+ with
two RL02's
(that works fine even with the homemade ribbon cable, although it's
shorter than the one in the 8/A).
I would at this point be suspicious of problems with your RL8A if the
new cable proves to work with your PDP-11.
Now that I have a long enough cable, I am planning to
do just that
(plug it into the RLV11 or whatever the controller is called) and see
what's what.
RLV11 is 2 boards (using the CD-interconnect) and 18-bit addressing.
RLV12 is 1 board and 22-bit addressing (Q22). Otherwise, functionally
quite similar.
I also have one of Philipp Hachtmann's USB-port
console interface
cards that I haven't got around to playing with yet, and may use that
to download diagnostics too.
That will be a handy tool.
I'd definitely see about RL8A diags.
-ethan