Seagate ST3300657FC, ST3300557FC, ST3300457FC, ST3450857FC, ST3450757FC manual Power, Fault LED Out

Page 74

12.5.6Power

Power is supplied through the FC-SCA with support for +5 volts and +12 volts. All of the voltage pins in the drive connector are the same length.

Four 12 volt pins provide +12 volt power to the drive. The current return for the +12 volt power supply is through the common ground pins. The supply current and return current must be distributed as evenly as pos- sible among the pins. The maximum current typically occurs while the drive motor is starting.

Three 5 volt pins provide logic power to the drive. The current return for the +5 volt power supply is through the common ground pins. Distribute supply and return current as evenly as possible among the voltage and ground pins.

The mating connector pins use shorter contacts to achieve power surge reductions and to aid in “hot plugging” the drives. There are longer voltage contacts in the connector to enable the drive filter capacitors to charge. Current to the drive through the long charge pins is limited by the system in which the drive operates. Three of the +12 volt pins are shorter to allow capacitive pre-charging through the longer +12 volt charge pin. Two of the +5 volt pins are shorter to allow capacitive precharging through the longer +5 volt charge pin.

12.5.7Fault LED Out

The Fault LED Out signal is driven by the drive when:

•the drive detects failure of both ports

•the drive detects an internal failure

•the drive receives the appropriate fault LED command from the host

The Fault LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropriate current-limiting resistor. The LED and the current-limiting resistor are external to the drive.

68	Cheetah 15K.7 FC Product Manual, Rev. C

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Contents SED Fips 140-2 models ST3600857FC ST3450657FC ST3300457FCStandard models Self-Encrypting Drive models Page Contents About Fips About self-encrypting drives Defect and error managementInstallation Interface requirementsCheetah 15K.7 FC Product Manual, Rev. C Iii Cheetah 15K.7 FC Product Manual, Rev. C Seagate Technology support services Seagate Online Support and ServicesScope Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Reference documents Ncits TR-20General description Standard features Reliability Media descriptionPerformance Formatted capacitiesProgrammable drive capacity Factory-installed optionsUser-installed accessories Seek performance characteristics Performance characteristicsInternal drive characteristics Access timeStart/stop time Format command execution time minutesGeneral performance characteristics ST3600057FC ST3450857FC ST3300657FCPrefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationRecoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenancePerformance impact 4 S.M.A.R.TControlling S.M.A.R.T MillisecondsPredictive failures Temperature Log Page 0DhDetermining rate Thermal monitorDST failure definition State of the drive prior to testingDrive Self Test DST ImplementationExtended test Function Code 010b Short and extended testsShort test Function Code 001b Log page entriesProduct repair and return information Product warrantyShipping DC power requirements Physical/electrical specificationsAC power requirements ST3600057FC DC power requirements Gbit Amps ST3450857FC DC power requirements Gbit AmpsGeneral DC power requirement notes ST3300657FC DC power requirements Gbit AmpsCurrent profiles Power sequencingConducted noise immunity Typical ST3450857FC current profiles Typical ST3300657FC current profiles Power dissipation 600GB model450GB models 300GB models Temperature a. OperatingEnvironmental limits Relative humidity Effective altitude sea level a. OperatingShock Package size Packaged/product weight Drop heightShock and vibration Recommended mounting Acoustics Air cleanlinessVibration a. Operating-normal Electromagnetic susceptibility See Section Corrosive environmentRoHS compliance statement Mechanical specifications Mounting configuration dimensionsLevel 2 security About FipsPurpose About self-encrypting drives Controlled accessAdmin SP Data encryptionDrive locking Default passwordRandom number generator RNG Data bandsSupported commands Authenticated firmware downloadPower requirements Cryptographic eraseDrive error recovery procedures Defect and error managementDrive internal defects/errors Page FC-AL system errors These values are subject to changeDeferred Auto-Reallocation Background Media ScanMedia Pre-Scan Idle Read After Write Drive orientation InstallationDrive ID/option selection Cooling Air flowDrive mounting GroundingLink services supported Type of frame FC-AL featuresFibre Channel link service frames Interface requirementsFC Scsi FCP response codes Function name Response code Fibre Channel task management functionsFibre Channel task management responses Fibre Channel port login NPort login Plogi payload BytesProcess Login Plri payload Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Accept ACC payload Bytes Fibre Channel Process Login AcceptFibre Channel fabric login Fabric Login Flogi payload BytesFibre Channel fabric accept login Fabric Login Accept ACC payload BytesFibre Channel Arbitrated Loop options Scsi commands supportedDual port support FC-AL options supportedSupported commands Cheetah 15K.7 FC Product Manual, Rev. C Cheetah 15K.7 FC Product Manual, Rev. C Background Medium Scan 15h Cheetah 15K.7 FC inquiry data Bytes Data hex Mode Sense dataInquiry data Page Mode Data Header Block Descriptor Ec b2 5c 00 00 02 Supported Feature or condition Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous status Physical description Physical characteristics FC-AL physical interface Pin descriptions Connector requirementsElectrical description FC-AL transmitters and receivers FC-SCA pin descriptions Pin Signal name Signal typePin Signal name Signal type Power Fault LED OutMotor start controls Enable port bypass signalsActive LED Out Parallel Enclosure Services Interface ESI 12.5.11 SEL6 through SEL0 ID linesHex Dec SettingArbitrated loop physical address Alpa values Device control codes Signal characteristicsTTL input characteristics provides the TTL characteristics FC Differential input LED driver signalsFC Differential output Receive eye diagram Eye diagram data values Link rate GHz Index NumericsDevctrlcode FCP Mtbf Page See also cooling Page Cheetah 15K.7 FC Product Manual, Rev. C

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