I have had problems with internal SCSI ID selectors not fitting in all
case/drive combinations (or not being long enough to reach if the ID pins
are on the front).  For those drives, I have just had to put jumpers on the
SCSI ID pins themselves and do nothing with the SCSI ID plug.  Once you get
your drive working, you probably will not be changing the SCSI ID very often
anyway, so it isn't too inconvenient to "hard code" the SCSI ID into the
drive with jumpers.

You need to use jumpers instead of running the individual wires directly to
the SCSI ID selectors.  For example, if you wanted to set SCSI ID = 1, you
need A0=On,A1=Off,A2=Off.  To turn A0 "on" you need to connect the two A0
pins together (thus completing a circuit), which the function of the jumper.
The SCSI ID switch just scrolls through all the On/Off binary combinations
to open/close the respective circuits.  Maybe you can find another plug that
will fit your drive better, but I don't think you can do it with the wires
themselves.

Hopefully your Quantum drive or another drive has some spare jumpers on it
you can cannibalize.  If not, your desktop guy at work should have a drawer
full of them and will be more than happy to part with a few.  They are tiny,
so don't lose them in the carpet if you drop them!  I tape my extras onto a
white piece of paper so they are much harder to lose!

You can view a pin-out of your quantum drive on the internet.  Maxtor
supports all of quantum's old legacy 50-pin drives now for some reason.  I
assume quantum sold those assets off to them some time ago.  I assume you
have a ProDrive/LPS class of Quantum... Go here...
http://www.maxtor.com/en/support/products/scsi/legacy/index.htm
...and you should be able to find the specs on your drive.

> If my drive is terminated internally.  Do I need to put a terminator on
the
> other CN50 socket outsoide the enclosure?

I believe a previous reply has mentioned this as well, but I have had
internally terminated drives hooked up with a CN50 terminator on the end and
with no problems.  I can never remember which ones are internally terminated
anyway, so doing this just covers everything.  If nothing else, it helps
protect the socket from corrosion, dust, etc. and keeps me from hitting and
bending the clasps on the sides of the socket whenever I move the case
around.

"Allen Bong" <sfbong@tm.net.my> wrote in message
news:3e5c10ed$1_2@news.tm.net.my...
> Hi,
>
> I bought a scsi enclosure (cheap) and mounted my 700MB Quantum drive into
> it.  From the back of the enclosure there is a 5-pin plug with 4 wires on
it
> which I can't find a place to plug in on my HD.  It  is for the address
> selection switch connected to a thumbwheel switch with 2 buttons on it.
>
> Anyone know how I am going to connect this cable.  Can I just solder the
> wires to the 6-pin jumper block A0,A1,A2  directly and anyone know which
> wire goes to where?
>
> If my drive is terminated internally.  Do I need to put a terminator on
the
> other CN50 socket outsoide the enclosure?
>
>
> Allen
>
> --
> The next war will determine NOT who is right  BUT what is left.
>
>
>