#Hard Drive Advice
30-Dec-94 15:58:38
Sb: #180233-#Hard Drive Advice
Fm: Murray Chaffer 76711,712
To: Dick Schnase 74001,513
Hi Dick,
> I've a 52 MB Quantum that I'm not using – can't figure how to set the >
device address. It has jumpers labeled A0, A1, A2 and another set of two >
jumpers side by side w/ no label.
Think of them as binary numbers. if you set jumper A0, it will represent 2 to
the power of zero (hence it will be either 0 or 1).
If you set jumper A1, it will represent 2 to the power of 1 (which will be
either 0 or 2)
If you set jumper A2, it will represent 2 to the power of 2 (which will be
either 0 or 4)
This table may help :
SCSI ID Settings: A0 A1 A2 0 Off Off Off 1
On Off Off 2 Off On Off 3 On
On Off 4 Off Off On 5 On Off
On 6 Off On On 7 is possible (On On On) But is reserved
for the controller – Don't use!
To set a jumper 'on', just place the shorting block across the two pins.
As Trent mentioned before, you may have to get extra shorting blocks for higher
numbers, some drives ship with only one.
-Muzz