TOSHIBA SD-W1101/W1111 DVD-RAM Drive
5
Jumpers can be set in either an ON mode or OFF mode. If the jumper
covers both pins on the jumper block, it is ON; if there is no jumper or
only one of the pins is jumpered, the jumper is OFF. This section will
discuss the following jumper settings: SCSI ID, Parity, Verify, One
Lun/Two Lun and Termination.
All SCSI devices attached to your computer are assigned a SCSI-ID
number from 0 to 7. Your DVD-RAM’s SCSI ID must be set so that
its ID number does not conflict with any other device’s SCSI-ID in
your system. In most cases your DVD-RAM will come set to SCSI ID
4. If your DVD-RAM is the only SCSI device connected to your com-
puter, you should leave the jumpers as they are. If you have additional
SCSI devices (CD-ROM, hard drive, etc.) you will be “daisy-chain-
ing” these devices. Each SCSI device must have a different SCSI ID.
Note that your SCSI interface card in most cases has a SCSI ID of 7.
The chart below shows the jumper settings for the eight possible ID
numbers:
ID4
ID2
ID1
SCSI-ID
0
ID4
ID2
ID1
SCSI-ID
1
ID4
ID2
ID1
SCSI-ID
2
ID4
ID2
ID1
SCSI-ID
3
ID4
ID2
ID1
SCSI-ID
4
(default)
ID4
ID2
ID1
SCSI-ID
5
ID4
ID2
ID1
SCSI-ID
6
ID4
ID2
ID1
SCSI-ID
7
Parity Jumper
The Parity jumper pins should have no jumper present, which sets
Parity to OFF mode. In the OFF mode, the parity bit check function on
the SCSI data bus is activated which enhances data bus reliability.
Note: if your interface card does not provide “parity generation”
function, this jumper will have no effect.
