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When is an ADTRON SDDS not an SDDS ?

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: When is an ADTRON SDDS not an SDDS ?
Date: Sat, 5 Nov 2022 09:38:11 -0500
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by: Louis Ohland - Sat, 5 Nov 2022 14:38 UTC

After passing up a chance to ride the rainbow, I decided to snuffle
about looking for a SCSI reader...

My fellow followers of Micro Channel, you must be able to rightly divide
the SDDS models. Unfortunately, the silkscreen "SDDS-XXA" on the PCB is
NOT the model, it just means the PCB is common to -01A / -03A / -04A.

The model can be determined in three ways.

Picture of PCB from above, you can see jumpers, shunts, or unpopulated
Picture of sticker on bottom of frame
Picture of sticker on firmware flash

-01A / -03A RICHTIG !
-04A FALSCH ! Tape emulation firmware !

It might be you can flash -04A to -01A / -03A, but I don't have the BIN,
and I can't compare -01A / -03A and -04A chipsets, though I >ASSUME<
both variants are compatible.

So if you cannot read the sticker on the firmware, cannot see the
jumpers, can't see the sticker on the bottom of the frame, or you cannot
contact the seller, it is >quite< possumble it is a -04A which is pretty
d*mn useless unless you need a tape backup.

Just sayin'

The first version always gets thrown away.

computers / comp.sys.ibm.ps2.hardware / When is an ADTRON SDDS not an SDDS ?

computers / comp.sys.ibm.ps2.hardware / When is an ADTRON SDDS not an SDDS ?

Subject	Author
When is an ADTRON SDDS not an SDDS ?	Louis Ohland