Lasciate ogni speranza, voi ch'entrate! 22-Jan-1998 1052 +0000 wrote:
> 
> "totii@est.is" "Thordur Ivarsson" wrote:
> 
> >The mainboard (board 1) does contain 2 SCSI controllers ((or ? Wide SCSI
> >controller), as far I know, standard SCSI devices can be connected to
> >Wide SCSI), on the top of motherboard is connected daughter board (board
> 
> The MicroVAX 3100 10e/20e was out before Wide SCSI existed ... it is SCSI-1.

Fine that is cleared then
> 
>
> >2)that adds 8 terminal connections and Synchronus serial port. Above
> >those 2 is the third board (board 3) on device shelf.
> 
> Sounds like (board 2) is a DHW42 (8 serial lines) or maybe a DSH32 (one or two
> synchronous lines). If you post the 54-xxxxx-xx part numbers I can compare with
DSH32-BA RS-232 sync-serial + 8 async-serial - 54-18905-01

> mine and let you know (although I think that by the time you have taken enough
> apart to see the part number you can also probably see DHW or DSH stamped
> somewhere anyway).
> 
> >
> >The (board 3) is connected to (board 1) with 100 pin header cable (I
> >Belive SCSI), and also connects to (board 2) with 68 pin header cable.
> >The (board 2) is connected to (board 1) with 2 40pin connectors that
> >match positions.
> 
> I'm guessing that (board 3) is stuck to the back of the box and is the I/O
> module (I don't know the correct designation). If it is, it's just a bunch of
> drivers for the various connections it sports.
Yes it is stuck to the back of the box, the part number seems to be
54-18858-1

> 
> Antonio
> 
> Antonio Carlini                            Mail: carlini@marvin.enet.dec.com
> DECnet-Plus for OpenVMS Engineering
> Digital Equipment Corporation              Worton Grange, Reading, England

-- 
Þórður Ívarsson		Thordur Ivarsson
Rafeindavirki		Electronic technician
Norðurgötu 30		Nordurgotu 30
Box 309			Box 309
602 Akureyri		602 Akureyri
Ísland			Iceland

---------------------------------------------
FreeBSD has good features,
Some others are full of unwanted features!
---------------------------------------------