Seagate ST34520N/W/WC/LW/LC Manuel D’Utilisation

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Medalist Pro Installation Guide, Rev. B
51
LW drives
Figure 16. Additional jumper option for LW drives
A jumper here forces single-ended 
I/O operation. 
No jumper allows host to select either 
single-ended or DF operation.
D
F
D
S
M
E
W
P
P
D
R
E
S
R
E
S
T
P
Pin 1
J2
J2
 
Jumper Plug
(enlarged to
show detail)
J2
Drive
Front
J6
Host adapter or other device provides 
term. power to external terminator.
Term. Power to SCSI Bus
(default)