Terminating the drive

N/ND drives

36	Barracuda 4 Installation Guide, Rev. E

To terminate the ST15150N drive, enable the perma- nently mounted IC active terminators by installing an Enable Drive Terminator jumper on J01 pins 1 and 2 as shown in Figure 11. If you install one of these models and it is not on the end of the SCSI bus, remove the jumper to disable the permanently mounted IC termina- tors and thereby remove internal termination from the drive.

The ST15150ND drive does not have internal termina- tors or any way of adding internal termination. You must provide external active termination (ANSI SCSI-2 Alter- native 2) to the drive when termination is required.