On 10/2/2017 9:13 AM, Dominique Carlier via cctalk wrote:
Everything would be perfectly fine if most of the time I did not have
at startup an error at line 9. of the POC test:
SERIAL I / O CHANNEL B: FAILED
I doubt the US unit you bought was used with a floppy running CPM. It
most likely had a synchronous channel for connection to some network and
ran just standalone.
I recall that there were modules of some sort you added to get some
functionality, so as to not have to open the box. I don't know if you
set anything outside the box, but it may have some switches or such to
indicate some other device is present that now is not. So it would fail
on power on test.
that's just a guess on which way I'd go to figure it out. I don't have
any documentation or anything other than having had one for about a year
for a project I did to go on.
Mine had no floppies, but had a printer interface option attached which
was the same as one that was on a Univac 1100 series mainframe I was
making a controller for. So I could just run a standalone test and if
my controller card was working it would spew on the printer.
That option was also one of these things added on. Never dug into
anything as the device is pretty overengineered and without a lot of
manuals and parts, you can't do much with it.
thanks
Jim
