yes, this is a BA123. Aside from the qbus slots being so close together,
this is imho the nicest Qbus enclosure for a vax.=20

Isildur



On Mon, 24 Mar 2003, der Mouse wrote:

> >> ... BA123[%] ...
> >> [%] Do I have the BA numbers right?
>=20
> > the ba123 is a little r2d2-looking box with four casters and i think
> > 14 slots of qbus on the back, and room for four rd53/rd54/tk50's in
> > front.
>=20
> > the ba23 is a 4U box (once you take it out of the plastic clamshell)
> > with a 7-slot qbus and room for two rd53/rd54/tk50's in front.
>=20
> > the ba213 is more or less a ba123 turned sideways, so that the wide
> > part has card edges.  the dssi-style drives go in the top, facing the
> > same way as the card edges.  better power and cooling than the ba213,
> > and better i/o connectors (they're bolted to the cards, so no
> > separate bulkheads.)
>=20
> Hm, now I'm not sure *what* I've got.
>=20
> My VAX-on-wheels cabinets have four drive bays, but inserting a drive
> into one involves moving it front-to-back.  Inserting a Qbus card means
> moving it right-to-left, as viewed from the front of the machine.  And
> I/O connectors are bolted to little "knockout" (actually, "unscrew and
> remove blank plate") spaces such that they face the back of the
> machine.  There are four spaces of about 2=BC by 3=BC inches (suitable fo=
r
> a KA630 connector-and-switch panel, or four serial ports on eg a
> DHV11), one space about 5 by 3=BC inches with a brace that when installed
> divides it into two more 2=BCx3=BC spaces, and four narrow slots suitable
> for DEQNA AUI-and-fuse panels.
>=20
> Four Q/CD slots and eight Q/Q slots.  There's a 13th slot that is not
> part of the Qbus (I think it has just power) and is not inside the
> inner metal cage that surrounds the Qbus; it is apparently designed for
> a signal breakout board for RD/RX controllers.
>=20
> This sounds like a BA123 in terms of drive and I/O connector mounting
> but a BA213 in terms of Qbus card positioning.
>=20
> I'm Confused. :-/
>=20
> I have two of them.  The one I can easily check on has a sticker
> showing "Model: DH-630Q4-E2".
>=20
> /~\ The ASCII=09=09=09=09der Mouse
> \ / Ribbon Campaign
>  X  Against HTML=09       mouse@rodents.montreal.qc.ca
> / \ Email!=09     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B
>=20