Seagate ST9146752SS, ST973452SS, ST973352SS SAS pin descriptions, SAS transmitters and receivers

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Table 13: SAS pin descriptions

Pin	Signal name	Signal type


S1	Port A Ground

S2*	+Port A_in	Diff. input pair

S3*	-Port A_in

S4	Port A Ground

S5*	-Port A_out	Diff output pair

S6*	+Port A_out

S7	Port A Ground

S8	Port B Ground

S9*	+Port B_in	Diff. input pair

S10	-Port B_in
*

S11	Port A Ground

S12	-Port B_out	Diff output pair
*

S13	+Port B_out
*
S14	Port B Ground

*- Short pin to support hot plugging NC - No connection in the drive.

12.4.6SAS transmitters and receivers

Pin	Signal name	Signal type


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

P11	Ready LED	Open collector out
*
P12	Ground

P13	12 Volts charge

P14	12 Volts
*

P15	12 Volts
*

A typical SAS differential copper transmitter and receiver pair is shown in Figure 16. The receiver is AC cou- pling to eliminate ground shift noise.

TX

Transmitter 100

TY

Differential

Transfer Medium

.01

.01

RX

Receiver 100

RY

Figure 16. SAS transmitters and receivers

Savvio 15K.2 SAS Product Manual, Rev. E

61

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Contents ST9146652SS ST973252SS ST9146852SSST9146752SS ST973452SSST973352SSStandard Models Self-Encrypting Drive Models SED Fips 140-2 ModelsPage Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPage Savvio 15K.2 SAS Product Manual, Rev. E List of Figures Page Seagate Online Support and Services Seagate Technology support servicesScope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityElectromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean MICEuropean Union Restriction of Hazardous Substances RoHS Reference documentsGeneral description Media description Standard featuresPerformance ReliabilityFormatted capacities Options Programmable drive capacityInternal drive characteristics Performance characteristicsSeek performance characteristics Access timeFormat command execution time General performance characteristicsStart/stop time Cache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataError rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenanceControlling S.M.A.R.T 4 S.M.A.R.TPerformance impact Reporting controlTemperature Log Page 0Dh Parameter Code Description Predictive failuresThermal monitor Drive Self Test DST State of the drive prior to testingDST failure definition ImplementationShort test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entriesProduct warranty ShippingProduct repair and return information Physical/electrical specifications AC power requirementsDC power requirements Gbit mode Amps 146GB models DC power requirements73GB models DC power requirements General DC power requirement notes Power sequencingConducted noise immunity Current profile for 146GB models Current profilesCurrent profile for 73GB models Power dissipation 146GB models in 6.0 Gbit operation146GB models in 3.0 Gbit operation 73GB models in 3.0 Gbit operation 73GB models in 6.0 Gbit operationTemperature a. Operating Environmental limitsRelative humidity Effective altitude sea level a. Operating Shock and vibrationShock Recommended mounting Air cleanliness Vibration a. Operating-normalCorrosive environment Acoustics Dimensions Mechanical specificationsAbout Fips PurposeLevel 2 security Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Default passwordDrive locking Data bandsPower requirements Authenticated firmware downloadSupported commands Cryptographic eraseDefect and error management Drive internal defects/errorsDrive error recovery procedures SAS system errors Background Media Scan Media Pre-ScanDeferred Auto-Reallocation Idle Read After Write Drive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresDual port support Supported commands Scsi commands supportedSupported commands Supported commands Supported commands Mode Sense data Inquiry dataSavvio inquiry data Page Mode Data Header 00 00 05 12 8B 00 10 Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status SAS physical interface Datum B Section C C Section a a Connector requirements Physical characteristicsElectrical description Pin descriptionsSAS transmitters and receivers SAS pin descriptionsSignal characteristics SAS-2 Specification compliance General interface characteristicsAdditional information Savvio 15K.2 SAS Product Manual, Rev. E Numerics IndexIraw Msid Mtbf See also cooling