Specifications
WD Scorpio ML320S-AF2
12
RELEASED 4/7/11 (WD CONFIDENTIAL)
2679-771320-A00
2.7
Device Plug Connector Pin Definitions
The drive interfaces with the host I/O bus via the SATA interface connection, and receives power from
the SATA power connection, illustrated in Figure 2-5 below. Table 2-2 identifies the pin definitions of
the SATA connectors and the corresponding signal names and signal functions.
Figure 2-5. Standard Factory Connectors
Table 2-2. Device Pin Connector Pin Definitions
S
ignal segment
S1
Gnd
2nd mate
S2
A+
Differential signal pair A from Phy
S3
A-
S4
Gnd
2nd mate
S5
B-
Differential signal pair B from Phy
S6
B+
S7
Gnd
2nd mate
Key and spacing separate signal and power segments
Po
w
e
r s
e
g
m
e
n
t
P1
V
33
3.3 V power, NOT CONNECTED
P2
V
33
3.3 V power, NOT CONNECTED
P3
V
33
3.3 V power, pre-charge, 2nd mate, NOT CONNECTED
P4
Gnd
1st mate, GROUND
P5
Gnd
2nd mate, GROUND
P6
Gnd
2nd mate, GROUND
P7
V
5
5V power, Precharge, 2nd mate
P8
V
5
5V power
P9
V
5
2nd mate, 5V power
P10
Gnd
2nd mate, GROUND
P11
ACT-
Activity LED- (O.C.)/Staggered Spin-up Disable Control
P12
Gnd
1st mate, GROUND
P13
V
12
12 V power, pre-charge, 2nd mate, NOT CONNECTED
P14
V
12
12 V power, NOT CONNECTED
P15
V
12
12 V power, NOT CONNECTED
