Trying to get running an LSI 11/23

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Tue Dec 28 12:37:13 2004

>
>
> I've been tinkering with this mutt LSI 11/23 system I've got and am trying
> to get it running. It's a custom-built system that has a mix of DEC and
> third-party boards. It's configured as follows--my apologies if I'm not
> conforming to standard DEC notation here [notes in brackets]:
>
> Cage 1
> Slot 1: DEC M8186 | CAMINTONN 504 [1]
> Slot 2: Dataram Diceon [2]
> Slot 3: Data Systems Design A4432-4 | Grant Continuity [3]
> Slot 4: Emulex TU0110401 [4]
>
> Cage 2
> Slot 1: Emulex Tu1110406 [5]
> Slot 2: Grant Continuity | Digital Pathways TCU-50DYR [6]
> Slot 3: MDB DLV-11J | DEC M9400 [7]
> Slot 4: Empty [8]
>
> Notes:
>
> 1. I believe the Camintonn card is memory
> 2. This has "RK:" written on the handle...an RK05 disk controller?

Probably a disk controller for something else that emulates an RK05 to
the software. What connectors are on this board?


> 3. The Data Systems Design card has "DY:" written on the handle.

DY: is the normal device name for an RX02 8" floppy. Does this card have
a 50 pin header on it? If so, you might have got one of the cards that
does the RX02 format on normal (SA800-series) drives, which is just what you
want, I think.

> The system powers up. There are +5V and +12V LEDs on the front of the
> panel that come on, and I've checked these lines at the power supply and
> they are good. One oddity: the terminal marked -12V is a perfect -0.00 on
> my volt meter. WTF?

Hmm... Without a -ve supply, the serial ports may well not work
correctly. I would want to check this further (in particular, I'd want to
check the supplies to the RS232 (or whatever) driver chips on the DLV11-J
card.

-tony
Received on Tue Dec 28 2004 - 12:37:13 GMT