Seagate Kinetic HDD Product Manual, Rev. B
20
Figure 4.1.3 shows the pin locations for the SAS connector pin and Table 4.1.1 represents the Ethernet Enabled SAS
Connector Pin Definitions for the Seagate Kinetic HDD.
Figure 5 SAS Connector Pin Locations
Table 12: Ethernet Enabled SAS Connector Pin Definitions
Notes
• All pins are in a single row, with a 1.27 mm (0.050”) pitch.
• There are three power pins for each voltage.
One pin from each voltage is used for pre-charge when installed in a blind-mate backplane configuration.
• All used voltage pins must be terminated.
Segment
Pin
Function
Comments
Signal
S1
GROUND
S2
RX0+
Ethernet port 0
S3
RX0-
Ethernet port 0
S4
GROUND
S5
TX0-
Ethernet port 0
S6
TX0+
Ethernet port 0
S7
GROUND
S8
GROUND
S9
RX1+
Ethernet port 1
S10
RX1-
Ethernet port 1
S11
GROUND
S12
TX1-
Ethernet port 1
S13
TX1+
Ethernet port 1
S14
GROUND
Power
P1
RESERVED
Reserved for internal use. Do not connect. 3.3V tolerant.
P2
I2C CLOCK
3.3V tolerant
P3
I2C DATA
3.3V tolerant
P4
GROUND
P5
GROUND
P6
GROUND
P7
+5V PRECHARGE
P8
+5V
P9
+5V
P10
GROUND
P11
RESERVED
Reserved for internal use. Do not connect.
P12
GROUND
P13
+12V PRECHARGE
P14
+12V
P15
+12V