9 May
1999
9 May
'99
8:40 a.m.
Pete Turnbull wrote:
On May 8, 23:41, Stan Pietkiewicz wrote:
They are indeed 2 * 50 pin headers, with a 4 position switch between them...
Another reply suggests it would be Unibus...
I'm not planning on plugging it into my MicroVAX 3600 until I know for sure....
Subject: Mystery board and drives
In my scrounging trips, I've managed to pick up the following mysteries:
1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this
might be a SCSI controller, but a closer look indicates that it probably
isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple
PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape
drive interface.....
Almost certainly Q-bus, since it's quad-height (all the Unibus Emulex
controllers I've seen are hex), and T means Tape. I'd guess it's a TU10
emulator or similar. What are the connectors like? If it has 2 x 50-way
headers, it'll be a Pertec interface.
BTW, was somebody looking for the Pertec interface pinouts a few days ago?
I found the ASCII and PostScript files if anyone needs them...
The interface connectors are a 50 pin ribbon connector. Other numbers... none
that I found...
Another message suggests that they are IPI-2...
2) A couple of Seagate hard drives, complete with
a power supply on a
mounting channel. These are labelled: Equipment No.: PA4B2A, and on the
drive itself: 975002-001. What are these?? I'm pretty sure there not
SCSI, but other than that, I'm puzzled....
975002 looks like an IPI or SMD drive number, but it doesn't quite match
any in my lists. Are there any other numbers? What kind of connectors are
on it?
--
Pete Peter Turnbull
Dept. of Computer Science
University of York