18 Jan
2003
18 Jan
'03
6:48 a.m.
Well, the enclosure is the same. It is only a set of
additional
connectors on the back an internal cabling. At least I interpreted
pictures of a VAX4k105 this way. But all I need is the pinout.
Building some cables is no problem and I have a QBus backplane
from a dead and rotten BA23.
I have a UV3100-90 and I've been close to a VAX 4000-100 (it
just wasn't mine). The VAX 4000-100 enclosure has a distinctive
sloping part at the back which houses the Qbus (and DSSI?)
connectors. I didn't get to look closely enough to see whether
this housing is an add-on to the UV3100-90 enclosure or the whole
case is a manufacturing modification of that enclosure. Either way,
the standard shipping UV3100-90 enclosure does not have anywhere
for Qbus and DSSI connectors.
I'll look for pinouts if I can dig up the right docs.
Antonio
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Antonio Carlini arcarlini(a)iee.org