Seagate ST3400755FC manual LED driver signals, FC Differential output, FC Differential input

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9.6.2LED driver signals

Fault and Active LED signals are located in the FC-SCA connector (J1). See Table 27 for the output character- istics of the LED drive signals.

Table 27: LED drive signal

State	Current drive available	Output voltage

LED off, high	0 < IOH < 100µA

LED on, low	IOL < -30 mA	0 < VOL < 0.8V

9.6.3FC Differential output

The serial output signal voltage characteristics are provided in Table 28. The outputs are not AC coupled in order to deliver maximum signal without rise and fall time degradation. You must AC couple the receiver to iso- late potentially different DC characteristics of the outputs and the receiver.

Table 28:	FC Differential output characteristics

Description		Parameter	Notes

Serial output voltage swing		600 < Vout < 1300 mV	Centered at 1.32V

Figure 13 provides the data output valid eye diagram relative to the bit cell time.

Bit Time

Vout (mv)

XMIT Eye

Figure 13. Transmit eye diagram

9.6.4FC Differential input

The serial input signal voltage characteristics are provided in Table 29.

Table 29:	FC Differential input characteristics

Description		Parameter	Notes

Serial input voltage swing		200 < Vin < 1.300 mV	AC coupled

Cheetah NS FC Product Manual, Rev. A

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Contents ST3400755FC ST3300955FC Cheetah NS FCPage Cheetah NS FC Product Manual, Rev. a Cheetah NS FC Product Manual, Rev. a Contents Installation Defect and error managementInterface requirements Seagate Technology support services Cheetah NS FC Product Manual, Rev. a List of Figures Page Scope Cheetah NS FC Product Manual, Rev. a Electromagnetic susceptibility Standards, compliance and reference documentsStandards Electromagnetic compatibilityCompliance Ncits TR-19 Reference documentsCheetah NS FC Product Manual, Rev. a General description Media description Standard featuresProgrammable drive capacity PerformanceReliability Formatted capacitiesUser-installed accessories Factory-installed optionsSeek performance Performance characteristicsInternal drive characteristics Access timeGeneral performance characteristics Format command execution time minutesStart/stop time Cache operation Prefetch/multi-segmented cache controlCaching write data Prefetch operation Unrecoverable Errors Reliability specificationsError rates Recoverable ErrorsPreventive maintenance Reliability and serviceSeek errors Interface errorsMilliseconds 4 S.M.A.R.TControlling S.M.A.R.T Performance impactThermal monitor Reporting controlDetermining rate Predictive failuresDST failure definition State of the drive prior to testingParameter Code Description Drive Self Test DSTExtended test Function Code 010b Invoking DSTShort and extended tests Short test Function Code 001bProduct repair and return information Product warrantyAbort ShippingCheetah NS FC Product Manual, Rev. a DC power requirements for ST3400755FC model Gbit Amps Physical/electrical specificationsAC power requirements DC power requirementsDC power requirements for ST3300955FC model Gbit Amps General DC power requirement notesConducted noise immunity Power sequencingCurrent profiles Cheetah NS FC Product Manual, Rev. a Random 8 Block Reads Power dissipationST3400755 CURRENT/POWER vs Throughput FC 4GB ST3400755FCST3300955FC ST3300955 CURRENT/POWER vs Throughput FC 4GBEnvironmental limits TemperatureRelative humidity Shock Package size Packaged/product weight Drop heightEffective altitude sea level Shock and vibrationRecommended mounting Corrosive environment Air cleanlinessVibration AcousticsChina Restriction of Hazardous Substances RoHS Directive X表示该部件（于同类物品程度上）所含的危险和有毒物质中国RoHS MCV标准所定义的门槛值。Mounting configuration dimensions Mechanical specificationsCheetah NS FC Product Manual, Rev. a Drive internal defects/errors Defect and error managementDrive error recovery procedures 77.87 Background Media Scan FC-AL system errorsMedia Pre-Scan Idle Read After Write Deferred Auto-ReallocationCooling InstallationDrive ID/option selection Drive orientationAir flow Drive mountingGrounding Cheetah NS FC Product Manual, Rev. a Interface requirements FC-AL featuresFibre Channel link service frames Link services supported Type of frameFibre Channel task management responses Fibre Channel task management functionsFC Scsi FCP response codes Function name Response code NPort login Plogi payload Bytes Fibre Channel port loginProcess Login Plri payload Fibre Channel port login acceptFibre Channel Process Login NPort Login Accept ACC payload BytesFabric Login Flogi payload Bytes Fibre Channel Process Login AcceptFibre Channel fabric login Process Login Accept ACC payload BytesFabric Login Accept ACC payload Bytes Fibre Channel fabric accept loginOption Supported Dual port supportFibre Channel Arbitrated Loop options FC-AL options supportedSupported commands Command code Command name Scsi commands supportedVerify error recovery page 07h Cheetah NS FC Product Manual, Rev. a Temperature page 0Dh Inquiry data Mode Sense dataCheetah NS FC inquiry data Bytes Data hex Page Mode Sense 10 Byte Header Data Mode Data Header Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionFC-AL physical interface Physical characteristicsPhysical description Electrical description Connector requirementsPin descriptions Pin Signal name Signal type FC-SCA pin descriptions Pin Signal name Signal typeFC-AL transmitters and receivers Fault LED Out PowerActive LED Out Enable port bypass signalsMotor start controls 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESIArbitrated loop physical address Alpa values SettingHex Dec TTL input characteristics Signal characteristicsDevice control codes FC Differential output LED driver signalsFC Differential input Receive eye diagram Eye diagram data values Link rate GHz Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Numerics IndexFAN Flogi Plogi SEL ID See also cooling

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