Seagate ST9900705SS Savvio 10K.3 SAS Product Manual - Page 70
Activity LED
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12.4.2 Physical characteristics This section defines physical interface connector. 12.4.3 Connector 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 connector manufacturers. The SAS device connector is illustrated in Figures 30 and 31. 12.4.4 Electrical 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. 12.4.5 Pin descriptions This section provides a pin-out of the SAS device and a description of the functions provided by the pins. Table 13: SAS pin descriptions Pin Signal name Signal type S1 S2* S3* S4 S5* S6* S7 S8 S9* S10* S11 S12* S13* S14 Port A Ground +Port A_in -Port A_in Port A Ground -Port A_out +Port A_out Port A Ground Port B Ground +Port B_in -Port B_in Port A Ground -Port B_out +Port B_out Port B Ground Diff. input pair Diff output pair Diff. input pair Diff output pair * - Short pin to support hot plugging NC - No connection in the drive. Pin P1* P2* P3 P4 P5 P6 P7 P8* P9* P10 P11* P12 P13 P14* P15* Signal name NC (reserved 3.3Volts) NC (reserved 3.3Volts) NC (reserved 3.3Volts) Ground Ground Ground 5 Volts charge 5 Volts 5 Volts Ground Ready LED Ground 12 Volts charge 12 Volts 12 Volts Signal type Open collector out 62 Savvio 10K.3 SAS Product Manual, Rev. H