29 Jun
2007
29 Jun
'07
5:11 a.m.
Does anyone happen to have a reference for the termpwr jumpers on a Seagate
ST1480N 425MB SCSI disk?
The only online reference I've found so far is set out to use the old DOS font
with line drawing characters in it, and nothing I've been able to find in
Firefox (or elsewhere in Linux) has been able to display it properly :-(
I know the termpwr jumpers are 7 and 8 down the left side of the drive, but
deciphering the characters used in the corresponding truth table is proving
tricky.
(I've having another look at the NeXT Cube; I assume that the drive is
currently expecting termpwr from the bus, but the NeXT isn't supplying it)
ta
J.
29 Jun
29 Jun
7:39 a.m.
On 29/06/2007 10:11, Jules Richardson wrote:
Does anyone happen to have a reference for the termpwr jumpers on a
Seagate ST1480N 425MB SCSI disk?
The only online reference I've found so far is set
out to use the old
DOS font with line drawing characters in it, and nothing I've been able
to find in Firefox (or elsewhere in Linux) has been able to display it
properly :-(
You need to get a copy of the linedrawing TrueType font. There used to
be one on Seagate's pages along with the drive data, and Microsoft have
one that's sometimes supplied with Word.
Anyway, to answer the immediate question, the table means this:
A no jumper on upper/lower pin position 7
jumper between upper and lower position 8
-- drive supplies own termpwr
B jumper between upper and lower pin position 7
no jumper on upper/lower position 8
-- drive supplies termpwr to bus
C no jumper on lower pin position 7 or lower position 8
jumper between upper position 7 and upper position 8
-- bus supplies termpwr to drive
--
Pete Peter Turnbull
Network Manager
University of York
8:51 a.m.
Pete Turnbull wrote:
On 29/06/2007 10:11, Jules Richardson wrote:
Yes, I'm surprised that Openoffice at least didn't come with something - but
then I'm also surprised that Firefox doesn't seem to have the ability either :(
Does anyone happen to have a reference for the termpwr jumpers on a
Seagate ST1480N 425MB SCSI disk?
The only online reference I've found so far
is set out to use the old
DOS font with line drawing characters in it, and nothing I've been
able to find in Firefox (or elsewhere in Linux) has been able to
display it properly :-(
You need to get a copy of the linedrawing TrueType font. There used to
be one on Seagate's pages along with the drive data, and Microsoft have
one that's sometimes supplied with Word. Anyway, to answer the immediate question, the table
means this:
A no jumper on upper/lower pin position 7
jumper between upper and lower position 8
-- drive supplies own termpwr
B jumper between upper and lower pin position 7
no jumper on upper/lower position 8
-- drive supplies termpwr to bus
C no jumper on lower pin position 7 or lower position 8
jumper between upper position 7 and upper position 8
-- bus supplies termpwr to drive
Huzzah - that works. Cube is happy again and now running with a (hopefully)
reliable drive - although it also wanted the external bus connector
terminating, contrary to every Slab setup I've seen.
I'm not sure what NeXT's official docs say on that; I wonder if Slabs
auto-terminate but the Cube doesn't - or maybe all the Slabs I've seen haven't
been set up properly, but it's one of those things that can be 'got away
with' :-)
1:17 p.m.
On Friday 29 June 2007 07:39, Pete Turnbull wrote:
On 29/06/2007 10:11, Jules Richardson wrote:
> Does anyone happen to have a reference for the termpwr jumpers on a
> Seagate ST1480N 425MB SCSI disk?
>
> The only online reference I've found so far is set out to use the old
> DOS font with line drawing characters in it, and nothing I've been able
> to find in Firefox (or elsewhere in Linux) has been able to display it
> properly :-(
Somewhere around here I have a file called "THEREF" (I think the latest
version I have is theref43.zip) that contains all sorts of info like that --
in ASCII. If there's a need, I can probably dig out a copy and put it
online someplace...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
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julesrichardsonuk＠yahoo.co.uk -
pete＠dunnington.plus.com -
rtellason＠verizon.net