Conducted noise immunity, Power sequencing | Seagate ST936751FC

6.2.1Conducted noise immunity

Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

	+5V	+12V
0 to 100 kHz	150mV	150mV
100 kHz to 10 MHz	100mV	100mV

6.2.2Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

6.2.3Current profiles

The +12V and +5V current profiles are shown below.

Note: All times and currents are typical. See Table 2 for maximum current requirements.

Figure 2. Typical ST973451FC drive +12V and +5V current profiles

Savvio 15K.1 FC Product Manual, Rev. B

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Seagate ST936751FC, ST973451FC manual Conducted noise immunity, Power sequencing, Current profiles, +5V +12V

Contents

ST973451FC ST936751FC Savvio 15K.1 FCPage Contents Defect and error management Physical/electrical specificationsInstallation Interface requirements Seagate Technology support services Savvio 15K.1 FC Product Manual, Rev. B List of Figures Page Savvio 15K.1 family disc drive Scope Savvio 15K.1 FC Product Manual, Rev. B Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibility European Union Restriction of Hazardous Substances RoHS Ncits TR-19 Reference documents Savvio 15K.1 FC Product Manual, Rev. B General description Standard features Performance Media descriptionReliability Formatted capacities Factory-installed accessories OptionsProgrammable drive capacity Internal drive characteristics Performance characteristicsSeek performance characteristics Access time Format command execution time General performance characteristicsStart/stop time Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operation Reliability specifications Error ratesRecoverable Errors Unrecoverable Errors Reliability and serviceSeek errors Interface errors Hot plugging the drive 4 S.M.A.R.TControlling S.M.A.R.T Reporting control Performance impactDetermining rate Predictive failures Parameter Code Description Temperature Log Page 0DhDrive Self Test DST DST failure definition Implementation State of the drive prior to testingInvoking DST Short and extended tests Log page entries Product warrantyAbort Shipping Product repair and return information Physical/electrical specifications AC power requirementsDC power requirements General DC power requirement notes Conducted noise immunity Power sequencingCurrent profiles +5V +12V Typical ST936751FC drive +12V and +5V current profiles Power dissipation CURRENT/POWER vs Throughput FC 1GB Random 8 Block ReadsST973451FC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads ST936751FC FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads Temperature FC CURRENT/POWER vs Throughput FC 4GB Random 8 Block ReadsEnvironmental limits Effective altitude sea level Relative humidityShock and vibration Shock Package size Packaged/product weight Drop height Recommended mounting Air cleanliness VibrationCorrosive environment Acoustics Drive dimensions inches Mechanical specifications Defect and error management Drive internal defects/errorsDrive error recovery procedures FC-AL system errors Background Media Scan Media Pre-ScanDeferred Auto-Reallocation Idle Read After Write Installation Drive orientationCooling Grounding Drive mounting Fibre Channel link service frames FC-AL featuresLink services supported Type of frame Interface requirements Fibre Channel task management responses Fibre Channel task management functionsFibre Channel Scsi FCP task management functions Task name Supported NPort login Plogi payload Bytes Fibre Channel port login Fibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Plri payload Fibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Bytes Fabric Login Flogi payload Bytes Fabric Login Accept ACC payload Bytes Fibre Channel fabric accept login Fibre Channel Arbitrated Loop options Dual port supportFC-AL options supported Option Supported Supported commands Command code Command name Scsi commands supported Disconnect/reconnect control page 02h Savvio 15K.1 FC Product Manual, Rev. B LBdata Supported commands Command code Supported 4 Command name Savvio inquiry data Bytes Data hex Inquiry data Miscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous status Physical characteristics FC-AL physical interfacePhysical description Connector requirements Part description Positions Part number FeaturesElectrical description FC-SCA pin descriptions Pin Signal name Signal type Pin Signal name Signal typePin descriptions Power Fault LED OutFC-AL transmitters and receivers Enable port bypass signals Active LED OutMotor start controls 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESI Setting Arbitrated loop physical address Alpa valuesHex Dec Signal characteristics TTL input characteristicsDevice control codes Differential Pecl input Differential Pecl output Savvio 15K.1 FC Product Manual, Rev. B Internet Seagate Technology support servicesPresales Support Technical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Numerics Index FAN Page Plogi SEL ID See also cooling