SCSI ID Number
It is possible to chain (using a daisy chain cable) up to seven SCSI peripherals to a
single SCSI interface board, or to the SCSI port of an Apple computer. However, when
using multiple SCSI peripherals, it is necessary to set each peripheral to a unique SCSI
ID number.
Your Plextor CD-ROM drive can be set to use one of eight SCSI ID numbers. The drive
should arrive with its SCSI ID set to 2. Accordingly, if you already use another SCSI
peripheral and its SCSI ID also is set to 2, you must change the SCSI ID number of
either this peripheral or the CD-ROM drive.
Changing the SCSI ID: PX-43CH
The SCSI ID number of the PX-43CH is determined by the placement of jumpers on
pins 1, 2 and 3. To change the SCSI ID number, follow the chart below.
Jumper Installed Across
SCSI ID Number
Pin 1
Pin 2
Pin 3
0
No
No
No
1
YES
No
No
2
No
YES
No
3
YES
YES
No
4
No
No
YES
5
YES
No
YES
6
No
YES
YES
7
YES
YES
YES
For example, the factory setting of the SCSI ID at 2 is made by installing a jumper
across pin 2 of the jumper block, leaving pins 1 and 3 uncovered. To set the SCSI ID
at 7 you would install a jumper across pin 1, another jumper across pin 2, and a third
jumper across pin 3. To set the SCSI ID at 5, you would install a jumper across pin 1
and a jumper across pin 3, leaving pin 2 uncovered.
Factory
Settings
CHAPTER 6 ---- Drive Switch/Jumper/Dial Settings
PX-43CH/PX-45CH OPERATION MANUAL
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