12.4.2Physical characteristics
This section defines physical interface connector.
12.4.3Connector requirements
Contact your preferred connector manufacturer for mating part information. Part numbers for SAS connectors will be provided in a future revision of this publication when production parts are available from major connec- tor manufacturers.
The SAS device connector is illustrated in Figures 14 and 15.
12.4.4Electrical description
SAS drives use the device connector for:
•DC power
•SAS interface
•Activity LED
This connector is designed to either plug directly into a backpanel or accept cables.
12.4.5Pin descriptions
This section provides a
Table 13: SAS pin descriptions
Pin | Signal name | Signal type |
|
|
|
|
|
|
S1 | Port A Ground |
|
|
|
|
S2* | +Port A_in | Diff. input pair |
|
|
|
S3* |
| |
|
|
|
S4 | Port A Ground |
|
|
|
|
S5* | Diff output pair | |
|
|
|
S6* | +Port A_out |
|
|
|
|
S7 | Port A Ground |
|
|
|
|
S8 | Port B Ground |
|
|
|
|
S9* | +Port B_in | Diff. input pair |
|
|
|
S10* |
| |
|
|
|
S11 | Port A Ground |
|
|
|
|
S12* | Diff output pair | |
|
|
|
S13* | +Port B_out |
|
|
|
|
S14 | Port B Ground |
|
|
|
|
|
|
|
*- Short pin to support hot plugging NC - No connection in the drive.
Pin | Signal name | Signal type |
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|
|
|
|
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P1* | NC (reserved 3.3Volts) |
|
|
|
|
P2* | NC (reserved 3.3Volts) |
|
|
|
|
P3 | NC (reserved 3.3Volts) |
|
|
|
|
P4 | Ground |
|
|
|
|
P5 | Ground |
|
|
|
|
P6 | Ground |
|
|
|
|
P7 | 5 Volts charge |
|
|
|
|
P8* | 5 Volts |
|
|
|
|
P9* | 5 Volts |
|
|
|
|
P10 | Ground |
|
|
|
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P11* | Ready LED | Open collector out |
|
|
|
P12 | Ground |
|
|
|
|
P13 | 12 Volts charge |
|
|
|
|
P14* | 12 Volts |
|
|
|
|
P15* | 12 Volts |
|
|
|
|
66 | Constellation.2 SAS Product Manual, Rev. H |