Serial Ata Device Plug Connector Pin Definitions - Seagate EXOS ST24000NM001H Product Manual

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5.2

Serial ATA device plug connector pin definitions

Table 11 summarizes the signals on the Serial ATA interface and power connectors.
Table 11 Serial ATA connector pin definitions
Segment Pin Function
Signal S1 Ground
S2 A+
S3 A-
S4 Ground
S5 B-
S6 B+
S7 Ground
Key and spacing separate signal and power segments
Power P1 V33
P2 V33
P3 PWRDIS
P4 Ground
P5 Ground
P6 Ground
P7 V5
P8 V5
P9 V5
P10 Ground
P11 Ground or LED signal
P12 Ground
P13 V12
P14 V12
P15 V12
Notes:
1. All pins are in a single row, with a 1.27mm (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.
4. All used voltage pins (Vx) must be terminated.
Seagate Exos X24 SATA Product Manual, Rev. A (Draft 1)
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
Not Used (P1 and P2 tied internally)
Not Used (P1 and P2 tied internally)
Enter/Exit Power Disable (option)
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
Serial ATA (SATA) interface
33