Seagate HAWK 2 ST12400N Installation Manual page 21

Hawk 2 Family Installation Guide, Rev. C 19
Resistor terminator packs
If you are installing a single drive, the Terminator
Enable (TE) jumper must be installed. See option
select jumper header in Figure 2a . If you are installing
multiple hard disc drives, remove the Terminator En-
able (TE) jumper from all the drives but the one
connected to the end of the SCSI I/O cable.
Model numbers that end in "ND" have differential I/O
circuits and these drives have no provisions for termi-
nators that plug into the drive PCB. The user, systems
integrator or system manufacturer must provide some
external means of I/O line termination.
Read/write head auto-park
Seagate disc drives described herein park the heads
automatically at power off. This feature requires no
operator intervention.