User's Manual

Installation

SCSI ID=0

SCSI ID=1

SCSI ID=2

SCSI ID=3

SCSI ID=4

SCSI ID=5

SCSI ID=6

SCSI ID=7

SCSI ID=8

SCSI ID=9

SCSI ID=10

SCSI ID=11

SCSI ID=12

SCSI ID=13

SCSI ID=14

SCSI ID=15

Parity enable

Term. power

Default jumper settings shown

(SCSI ID 6, parity checking enabled,

and termination power disabled)

Pins: Function:

1-2 SCSI ID bit 0

3-4 SCSI ID bit 1

5-6 SCSI ID bit 2

7-8 SCSI ID bit 3

9-10 Parity checking

11-12 Termination Power

Figure 6. Jumper Settings for an Internal Drive

SCSI Address Selection (Pins 1 through 8)

You can select the SCSI address used by the drive by placing the appropriate

jumpers on pins pairs 1-2 through 7-8, as shown in Figure 6. The SCSI address

can also be selected remotely by connecting a SCSI address-selection switch to

pins 1 through 8.

Each SCSI device on a bus must have a unique SCSI ID. The SCSI controller or

host adapter generally uses ID 7. In some systems, the boot drive uses ID 0.

Note:

In an 8-bit SCSI mode, the drive only uses SCSI addresses 0 through 7.

Parity Checking (Pins 9 and 10)

If a jumper is installed on pins 9 and 10 (the default setting), parity checking is

enabled. If no jumper is installed, parity checking is disabled, but parity is still

generated by the drive.