ADLINK ASD26-MT1 ET Series User Manual
Page 17
Specification
17
Power Connector:
Name
Type
Description
P1
V33
3.3V Power
P2
V33
3.3V Power
P3
V33
3.3V Power, Pre-change
P4
GND
P5
GND
P6
GND
P7
V5
5V Power, Pre-change
P8
V5
5V Power
P9
V5
5V Power
P10
GND
P11
DAS/DSS
Device Activity Signal /
Disable Staggered Spin up
P12
GND
P13
V12
12V Power, Pre-change
P14
V12
12V Power
P15
V12
12V Power
Table 14: Serial ATA Power Connector Pin Definitions
Note:
1.
All pins are in a single row, with a 1.27mm (0.05”) pitch
2.
Pins P1, P2 and P3 are connected together, although they are not connected internally to
the device. The host may put 3.3v on these pins.
3.
The mating sequence is
-
The ground pins P4-P6, P10, P12 and the 5V power pin P7
-
The signal pins and the rest of the 5V power pins P8-P9
4.
Ground connectors P4 and P12 may contact before the other 1st mate pins in both the
power and signal connectors to discharge ESD in a suitably configured backplane connector.
5.
Power pins P7, P8 and P9 are internally connected to one another within the device.
6.
The host may ground P11 if it is not used for Device Activity Signal (DAS)
7.
Pins P13, P14, P15 are connected together, although they are not connected internally to
the device.