11 Dec
1999
11 Dec
'99
8:40 a.m.
--- John B <dylanb(a)sympatico.ca> wrote:
I hope someone can answer these questions...
Where does the 16 pin front panel connector plug into the main options board
and which way? (There are two sockets on the Options board)
It doesn't. It plugs into a 16-pin header/ribbon cable that comes from the
backplane. The two empty sockets are for user boot roms.
Where does the main serial line plug into (which port
on which board)?
The DKC8AA (I don't have the handle number here) - it has two Berg connectors
facing front (for the full front panel) and three facing backwards - the
one closest to the edge fingers is the serial connector. The other two,
for the sake of completeness, are 12-bits in and out. The output port can
be used to drive an LA-180, but the data is inverted from normal and the IOTs
are not the same. With a recompiled driver, however, you could drive a
parallel printer with it.
Do you need a copy of the 1977-1978 microcomputer handbook? I have a spare.
Let's talk.
-ethan
=====
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