Seagate ST9120823AS - Momentus 7200.2 120 GB Hard Drive Product Manual page 30

Table 7: Serial ATA connector pin definitions
Segment Pin Function
P1 V
33
P2 V
33
P3 V
33
P4 Ground
P5 Ground
P6 Ground
P7 V
5
P8 V
5
Power
P9 V
5
P10 Ground
P11 Reserved
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 pints 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 (V
24
Definition
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
The pin corresponding to P11 in the backplane receptacle connector is also reserved.
The corresponding pin to be mated with P11 in the power cable receptacle connector
shall always be grounded.
1st mate.
12V power, pre-charge, 2nd mate
12V power
12V power
) must be terminated.
x
Momentus 7200.2 SATA Product Manual, Rev. D