21 Sep
2012
21 Sep
'12
8:48 a.m.
Got it. I'll verify the connector when it arrives. I do know that I have a
DA-15 to 3BNC connector around here, though I *thought* it was for a
Macintosh. Do you know the pinout? When I look for DA-15 video pinouts I
keep getting Mac ones.
(Do the Mac people not call it a DB-15? :-)
It's the same as for a VAXstation 2000 and I have a manual for that which
has the pinouts. Hmmm. Perhaps it's only the VS2000 that also passes the
keyboard and mouse signals through that connector - there is no room for
more connectors on that machine.
The video signals are:
1. Red
2. RGB ground
10. Green
11. Blue
There is also a monochrome video signal available from the frame buffer on the
system board which is not usually used if you have one of the optional colour
graphics cards:
3. Monochrome ground
9. Monochrome video
If you make up an DA-15M - DA-15F adapter to get at these, you can probably
run your VS3100 double headed. I've done it with a GPX graphics card and VMS.
I assume it is also possible with an SPX graphics card. I can't see why not.
(I remember our sales guy's jaw nearly hitting the floor when I showed him the
Decwindows mouse pointer moving from one monitor onto the other :-)
Regards,
Peter Coghlan.