dag@gorgon.uucp (Daniel A. Glasser) (09/25/90)
I am in need of some information on a SCSI drive that I purchased at
a swap meet recently. I don't know if it works or not... I cannot
get it to spin up, but maybe I need to set some things up with this
drive before it will spin up. The seller told me it was a 100 Mb
drive.
It is a CDC Half-height SCSI drive marked with the following information
on the label:
MN: 94221-101
PN: 77748218
The front of the drive has a 14 contact tongue for a card-edge type
connector on the right side, a 2 pin header next to that, and a small
LED near the left side. I suspect that the LED is the drive activity LED,
and the 2-pin header for a "remote" activity LED, but the connection on
the right side has me baffled. Also, there is evidence that something
was on that connector at one time. (Scratches in the plating.)
[------------------------------]
[ ###### ] Front View
[ ############ .. ]
[__@_############______________]
[====================== =======]
^---LED 2-pin--^ ^-------14 finger (7 on each side) card edge
On the Circuit board side of the drive there is a rectangular hole with
three strips of 8-pin single in-line sockets right behind the power
connector.
Circuit board view
+======================================+
7 ---> [ |
fingered [_ |<-- SCSI connection
(times 2) +-| |
card | (*) |
edge | --- |<-- Horizontal 8 pin header
| ( * ) |
F | --- |<-- 4 2-pin headers
r | +-----+ |
o | | | |<-- Power
n | +-----+ |
t +======================================+
The back of the drive has a circuit board, a 50 pin SCSI connection,
an 8-pin horizontal line of pins next to four two-high pin headers, and
the power connector.
[--+-----------------------------------------+--]
[ | | ]
[ | Little Circuit Board | ]
[ | | ] Rear View
[ +-----------------------------------------+ ]
[ ::::::::::::::::::::::::: ........ :::: #### ]
[-----------------------------------------------]<-------Main circuit board
SCSI connection ---^ ^ -8-pin ^-4 ^-----Power
2-pin
The drive came with no docs, no jumpers installed on any of the headers,
and no terminating resistor pack.
I would appreciate any and all information about this drive. My site
does not get comp.periphs.scsi (except when cross-posted to something
it does get) so follow-ups will probably not get here. If you have
some information about this drive, please send me E-mail at one of
the two addresses below.
dag@persoft.com (spool.cs.wisc.edu!persoft!dag)
or uwvax!persoft!gorgon!dag
I will forward a summary via E-mail to anyone who requests one (via E-mail)
if I get any information.
Thanks in advance --
Daniel A. Glasser
--
Daniel A. Glasser One of those things that goes
dag%gorgon@persoft.com "BUMP! (ouch!)" in the night.