Sata Interface; Hot-Plug Compatibility; Sata Device Plug Connector Pin Definitions - Seagate ST4000VX002 Product Manual

4.0 SATA Interface

These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports
ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.
For detailed information about the SATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment"
specification.

4.1 Hot-Plug compatibility

Seagate SV35/Suveillance +SRS HDD drives incorporate connectors which enable users to hot plug these drives
in accordance with the SATA Revision 2.5 specification. This specification can be downloaded from
www.serialata.org.

4.2 SATA device plug connector pin definitions

summarizes the signals on the SATA interface and power connectors.
Table 5
Table 5 SATA connector pin definitions
Segment Pin Function
S1 Ground
S2 A+
S3 A-
Signal S4 Ground
S5 B-
S6 B+
S7 Ground
Key and spacing separate signal and power segments
P1 V
33
P2 V
33
P3 V
33
P4 Ground
P5 Ground
P6 Ground
P7 V
5
Power P8 V
5
P9 V
5
P10 Ground
P11 Ground or LED signal
P12 Ground
P13 V
12
P14 V
12
P15 V
12
Notes
1. All pins are in a single row, with a 1.27 mm (0.050") pitch.
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:
• the ground pins P4 and P12.
• the pre-charge power pins and the other ground pins.
• the signal pins and the rest of the power pins.
3. 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 (V
Seagate SV35/Suveillance +SRS HDD Product Manual, Rev. C
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
1st mate
2nd mate
2nd mate
5V power, pre-charge, 2nd mate
5V power
5V power
2nd mate
If grounded, drive does not use deferred spin
1st mate.
12V power, pre-charge, 2nd mate
12V power
12V power
) must be terminated.
x
SATA Interface
24