Seagate ST3146855LC, ST3146855LW, ST3300655LW, ST3300655LC, ST373455LC manual DC cable and connector

Page 63

10.6.1DC cable and connector

LW model drives receive DC power through a 4-pin connector (see Figure 15 for pin assignment) mounted at the rear of the main PCBA. Recommended part numbers of the mating connector are listed below, but equiva- lent parts may be used.

Type of cable	Connector	Contacts (20-14 AWG)
14 AWG	MP 1-480424-0	AMP 60619-4 (Loose Piece)
		AMP 61117-4 (Strip)

LC model drives receive power through the 80-pin I/O connector. See Tables 19 and 20.

Pin	Power
1P	+12V
2P	+12V ret
3P	+	5V ret
4P	+	5V

J1	J5
Pin 1	Pin 1A	J1-DC Power
		J1-DC Power
	4P	3P	2P	1P

PCB

J1-DC Power

J5	Pin 1P
Pin 1A
J1
Pin 1
68 Pin
SCSI I/O
Connector

Figure 13. LW model drive physical interface (68-pin J1 SCSI I/O connector)

Cheetah 15K.5 SCSI Product Manual, Rev. J

57

Image 63

Contents Cheetah 15K.5 Scsi Page Contents Defect and error management InstallationInterface requirements List of Figures Page Seagate Online Support and Services Seagate Technology support servicesScope Electromagnetic susceptibility Applicable standards and reference documentationStandards Electromagnetic compatibilityEuropean Union Restriction of Hazardous Substances RoHS Electromagnetic complianceReference documents General description Drive model number vs. differentiating featuresMedia characteristics Standard featuresPerformance ReliabilityFormatted capacities Programmable drive capacity Factory installed accessoriesOptions factory installed AccessoriesPerformance characteristics Internal drive characteristics transparent to userScsi performance characteristics visible to user Format command execution time minutes Generalized performance characteristicsSeek time Start/stop time Prefetch/multi-segmented cache controlCache operation Prefetch operation Caching write dataUnrecoverable Error Reliability specificationsError rates Recoverable ErrorsReliability and service Seek errorsPreventive maintenance 4 S.M.A.R.T Hot plugging Cheetah 15K.5 Scsi disc drivesReporting control Controlling S.M.A.R.TPerformance impact MillisecondsTemperature Log page 0Dh Parameter Code Description Thermal monitorDrive Self Test DST Invoking DST State of the drive prior to testingDST Failure Definition ImplementationLog page entries Product warrantyShort test Function Code 001b Extended test Function Code 010bProduct repair and return information ShippingST3300655LC DC power requirements Physical/electrical specificationsAC power requirements DC power requirementsST373455LC DC power requirements ST3146855LC DC power requirementsPower sequencing Conducted noise immunityCurrent profile Typical ST3300655LW drive +12V LVD current profile ST3300655LW/ST3300655LC Power dissipationST3146855LW/ST3146855LC ST3146855LC DC current and power vs. Iops LVDST373455LW/ST373455LC ST373455LC DC current and power vs. Iops LVDEffective altitude sea level a. Operating Temperature a. OperatingEnvironmental limits Relative humidityShock Shock and vibrationRecommended mounting Air cleanliness Vibration a. Operating-normalCorrosive environment Acoustics Mechanical specificationsLC mounting configuration dimensions Defect and error management Drive error recovery proceduresDrive internal defects Read and write retry count maximum recovery times Scsi systems errors Background Media ScanMedia Pre-Scan Idle Read After Write Deferred Auto-ReallocationFormatting InstallationConfigure drive options Drive ID/option select headerJ5 jumper header on LW models only Drive Front RES Function descriptionCooling Drive orientationGrounding Drive mountingScsi messages supported by Cheetah 15K.5 Scsi family drives Interface requirementsGeneral description Scsi interface messages supportedCommands supported by Cheetah 15K.5 Scsi family drive Scsi interface commands supportedCommands supported by Cheetah 15K.5 Scsi family drive Commands supported by Cheetah 15K.5 Scsi family drive Commands supported by Cheetah 15K.5 Scsi family drive Inquiry Vital Product data Cheetah 15K.5 Scsi family drive Standard Inquiry dataMode Sense data Mode Sense Pages Data ST3300655 Mode sense dataMode Sense Header Data Mode Sense Pages Data ST3146855 Mode sense dataST373455 Mode sense data Scsi bus conditions and other miscellaneous features Scsi bus conditions and miscellaneous features supportedPhysical interface Synchronous data transferDC cable and connector Scsi interface physical description Cable requirements Mating connectorsInterface transfer rates supported Scsi interface cable requirementsMating connectors for LC model drives Mating connectors for LW model drivesScsi daisy-chain interface cabling for LW drives Right-angle to Pcba connectorsNonshielded 68-pin Scsi device connector used on LW drives Nonshielded 80-pin Scsi SCA-2 connector used on LC drives GND LW 68-conductor LVD P cable signal/pin assignments Active LED OUT 4 LC 80-pin single-ended SE I/O connector pin assignments+5 V Charge GND Active LED OUT 4 LC 80-pin single-ended LVD I/O connector pin assignmentsLVD output characteristics Electrical descriptionMultimode-SE and LVD alternatives Single-ended drivers/receivers LVD Input characteristicsGeneral cable characteristics Cable characteristics for single-ended circuitsTwist-n-flat cables-into a multi-drive backplane Cables for low voltage differential drivers/receiversTerminator requirements Terminator power LW drivesLC drives Disc drive Scsi timing Disc drive Scsi timingDisc drive Scsi timing Drive activity LED Drive activity LED status Spindle status Command statusNumerics SymbolsPage Page Scsi Page Page