Barracuda 9 Installation Guide, Rev. A 29

N drives
Terminating the drive

ST19171N drives are terminated with permanently mounted IC

active terminators. If you install one of these drives and it is not

on the end of the SCSI bus, disable the terminators by removing

the jumper from pins 15 and 16 of connector J2 (see Figure 6). If

you install the drive on the end of the SCSI bus, enable termina-

tion by installing a jumper on pins 15 and 16 of connector J2.

Figure 6. Terminating the drive

Disable SCSI terminator

Enable SCSI terminator (default)

SCSI I/O
Connector
Pin 1
J2
T
E
D
S
M
E
W
P
P
D
R
E
S
T
P
T
P
DC Power
Connector
J2
Drive
Front
J6 J1
J2 Jumper Type
(enlarged to
show detail)