Table 3-1SCSI ID Selection on Option Connector (68-Pin SCSI Connector Drives)

SCSI ID

 

Jumper Location – J3 Option Header

 

 

 

 

 

 

Pin Pair 7/8

 

Pin Pair 5/6

Pin Pair 3/4

Pin Pair 1/2

 

 

 

 

 

 

0

0

 

0

0

0

 

 

 

 

 

 

1

1

 

0

0

0

 

 

 

 

 

 

2

0

 

1

0

0

 

 

 

 

 

 

3

1

 

1

0

0

 

 

 

 

 

 

4

0

 

0

1

0

 

 

 

 

 

 

5

1

 

0

1

0

 

 

 

 

 

 

6

0

 

1

1

0

 

 

 

 

 

 

7

1

 

1

1

0

 

 

 

 

 

 

8

0

 

0

0

1

 

 

 

 

 

 

9

1

 

0

0

1

 

 

 

 

 

 

10

0

 

1

0

1

 

 

 

 

 

 

11

1

 

1

0

1

 

 

 

 

 

 

12

0

 

0

1

1

 

 

 

 

 

 

13

1

 

0

1

1

 

 

 

 

 

 

14

0

 

1

1

1

 

 

 

 

 

 

15

1

 

1

1

1

 

 

 

 

 

 

Note: 0 = No Jumper, 1 = Jumper Installed

Configure the drive for remote (external) SCSI ID selection by removing the SCSI ID jumpers (if present) from the referenced SCSI ID pins. Then connect the leads from the external selection switch to the referenced pins. Observe the following guidelines while doing so:

ID bit 0, at Pin 8, is the Least Significant Bit.

SCSI ID bits 0, 1, 2, and 3 (pins 8, 6, 4, and 2, respectively) are active LOW signals. That is, the bit is a 1 if the corresponding remote switch is closed to ground or jumper installed.

Use pins 1, 3, 5 and 7 as the associated ground returns for ID bits 3, 2, 1, and 0, respectively.

3.4.2.1Write Protection

To configure Write Protection for the drive, install a jumper across pin pair 11/12 on the J3 Option Header. To disable Write Protection on the drive, remove the jumper.

3-8 Maxtor Atlas 10K V