12 May
2003
12 May
'03
9:42 a.m.
Fred deBros wrote:
I have a MODEL -SEACD-AX-A01 infoserver 150 box
containing a cd and an
hdd
The back panel looks almost like a Vaxstation, except that it has two
Should only have one SCSI connector, the other connector you see is probably
the ansync io port.
The infoservers had special ROM's in them, which may cause problems trying
to use the system as a regular VAX. I think replacement ROMS aren't too
hard to get.
scsi terminators, 3 mmj plugs called 1, 2 and 3 with
the two-way arrows
MMJ was only used for serial ports, signals should be in the RS232 range.
on them (my guess serial i/o) and a db25 instead of the
db15. Above the
db25 plug is a square containing a broad arrow upward, not the usual
printer symbol found on dec eqpt. No mouse and no kbd plug there. But
otherwise, the back of the box looks similar: it has the aui and bnc
Ethernet connectors, the push-button switch between them and the s3
switch between the check lights and the db25 pin plug.
So the s3 switch looking exactly like the one on a Vaxstation 3100
series should do the same: switch from serial display/console to
terminal. And the dB25 plug is not a printer out, but functionally
similar to the db15 of the vs3100: it carries mouse/kbd and b/w analog
signals (single bnc) for a terminal display. No SPX or GPX board in
there anyways. Am I right?
I doubt it. It is probably a standard RS232 serial port. DEC used odd
connectors for the keyboard/mouse/video connectors, so that people
couldn't plug things into the wrong port. The connectors varied with
the video cards.
They didn't use a 25 pin port for parallel printers on the VAX.
That was an IBM PC thing (use cheaper connectors to save $$'s
in manufacturing).
It sounds like this system based on a 3100-10. No built-in video support,
unless they added an optional video card. I doubt they would put a
video card in an infoserver.
Long slide for a short question:
Is there a DEC cable that fits this db25 plug and that has the mouse/kbd
plugs - analogous to the vs3100 15-pin plug?
Does anyone have the pinouts to this db25 plug?
Look at the RS-232 specs.
All I need is kbd and analog out. That would allow me
to fire up this
otherwise nifty combo in netbsd for vax.
Or try the new linux vs3100 kernel on a compact system that has the cd
built-in.....
Fred
Plug a terminal (9600 baud) into MMJ-1, and you should be able to talk
to it.