Fujitsu Eagle (2351A) switch settings..... (Summary)
2007-12-25 7:13:00
I sent out my query and went out for a walk. The weather was beautiful.
When I got back, an hour later, I had this from frew%crseo@hub.ucsb.edu
sitting in my mail queue.
> Boy does this sound familiar -- we did EXACTLY the same thing a couple
> of years ago. Here's the jumper settings on the 2351's logic PCB:
>
> location jumpers
>
> AE7 3-4
> 6-7
> 10-11
>
> BC7 3-4
> 5-6
> 10-11
> 13-14
>
> BD7 2-3
> 6-7
> 9-10
> 13-14
>
> BE7 3-4
> 5-6
> 10-11
> 13-14
>
>
> BF7 3-4
> 6-7
> 10-11
>
> Don't ask me what this translates into, I'm working from a XEROX of the
> PCB. All I know is, it works (as in, it's the root disk on the system
> I'm typing this on). Good luck ...
>
> #-----------------+-----------------------+-----------------------------
> # Jim Frew | frew@crseo.ucsb.edu | Computer Systems Lab., UCSB
> # +1 805 961 8413 | frew@ucsbuxa (BITNET) | Santa Barbara, CA 93106, USA
>
Plugged them in and the drives worked like a charm. Within the next few hours,
I received a bunch more pieces of mail with the switch settings. Thanks
a bunch, folks. Here's one message which goes into more detail from
> We did the same thing a couple years ago under SunOS 3.2 -- they still
> work under SunOS 4.0.3 so I think it's still acurate. Here' the
> notes we have on what we did:
>
> last edit 5 October 1989 by Lou
>
> Xylogics 451 SMD Controller
>
> Lou talked to a Xylogics rep about the sectoring required for a Xylogics
> 451 controller. She said that there are two requirements:
>
> 1. Each sector must be at least 600 bytes long.
>
> 2. Each runt sector must be at least 150 bytes long.
>
> Fujitsu Eagle
>
> We found out from a SUN repairman how to set the sectoring for an Eagle
> and the instructions for that appear below.
>
> The PCB board 02 in the card cage at the left front part of the Eagle
> disk drive contains 16 pin jumper groups that are shaped like IC
> sockets. The jumpers on these "sockets" determine the sector on the
> drive that is controller dependent. If you orient the board so that
> the cable connectors are at the top, you can see a set of sockets on
> the upper left. Starting at the left and going right, they are
> positioned as BF7, BE7, BD7 and BC7. These are the jumpers that
> determine the sectoring. Toward the right edge of the board you will
> see an additional socket at AE7 that is used to set some controller
> interface modes. How the jumpers work is explained on pages 3-6
> through 3-15 in the Fujitsu M2351A/AF Mini - Disk Drive CE Manual.
>
> The jumper settings for the SI and SUN (Xylogics) controllers appear
> in the next table. Notice that their are only 4 changes between them.
>
> BF7 BE7 BD7 BC7
> SI SUN SI SUN SI SUN SI SUN
> 3-4 3-4 3-4 3-4 3-4 -> 2-3 2-3 ->3-4
> 6-7 6-7 5-6 5-6 6-7 6-7 6-7 ->5-6
> 10-11 10-11 10-11 10-11 9-10 9-10 10-11 10-11
> 13-14 13-14 13-14 13-14 12-13 ->13-14
>
> The interface jumper settings are:
>
> AE7
> SI SUN
> 3-4 3-4
> 6-7 6-7
> 9-10 -> 10-11
>
> The change is whether or not a Unit Ready is issued during a fault
> condition.
My thanks also to the following who responded:
doug@seismo.gps.caltech.edu (Doug Neuhauser)
mrwallen@UCSD.edu (Mark Wallen)
Roy Smith <roy@alanine.phri.nyu.edu>
texnet!jackal@uunet.UU.NET (Phil Hammar)
drk@Rational.COM (David Kaelbling)
I also received mail from a number of people who wanted the same information.
Hope this is what you wanted.
Janaka Jayawardena
LOCAL: janaka Systems Manager - Electrical Engineering
INTERNET:janaka%ee.pdx.edu (503)-725-3806
UUCP: {ucbvax,uunet,gatech}!tektronix!psueea!ee.pdx.edu!janaka
USNAIL: Portland State University (EE), P.O.Box 751, Portland, OR 97207
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