Seagate ST3120022AS, ST3120827AS manual Configuring the drive, Serial ATA cables and connectors

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3.2Configuring the drive

Each drive on the Serial ATA interface connects in a point-to-point configuration with the Serial ATA host adapter. There is no master/slave relationship because each drive is considered a master in a point-to-point relationships. If two drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This means both drives behave as if they are Device 0 (master) devices.

Serial ATA drives are designed for easy installation with no jumpers, terminators, or other settings. It is not nec- essary to set any jumpers on this drive for proper operation. The jumper block adjacent to the signal connector is for factory use only.

SATA Signal

Jumper Block	SATA Power
(factory use only)

Figure 3. Serial ATA connectors

3.3Serial ATA cables and connectors

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec- tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 8 for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.

For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind mateable.

For installations which require cables, you can connect the drive as illustrated in Figure 4.

Signal connector

Power connector

Signal cable

Power cable

Figure 4. Attaching SATA cabling

Each cable is keyed to ensure correct orientation.

20	Barracuda 7200.7 Serial ATA Product Manual, Rev. N

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Contents Barracuda 7200.7 Serial ATA Page Barracuda 7200.7 Serial ATA Page Contents Barracuda 7200.7 Serial ATA Product Manual, Rev. N List of Figures Page Introduction Native Command Queuing About the Serial ATA interfaceDrive specifications Specification summary tableSystem will display the warranty information for your drive Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Physical characteristics Drive specificationPhysical organization Recording and interface technologySeek time Power specificationsStart/stop times Idle mode power Operating power and currentStandby mode Typical current profiles Deferred spinupConducted noise Additional detailsVoltage tolerance Environmental specifications Temperature gradient Wet bulb temperatureHumidity Relative humidity AltitudeAcoustics VibrationOperating vibration Nonoperating vibrationElectromagnetic immunity ReliabilityRadio frequency environments Test Description Performance level Reference standardSafety certification Agency certificationElectromagnetic compatibility Korean RRLAustralian C-Tick N176 FCC verificationCorrosive environment Environmental protectionEuropean Union Restriction of Hazardous Substances RoHS Barracuda 7200.7 Serial ATA Product Manual, Rev. N Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsDrive mounting Mounting dimensions-top, side and end view Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionPage Supported ATA commands Command name Command code in hex ATA-standard commandsATA-standard power-management commands Command name Command code in hexATA-standard security commands Identify Device command Word Description ValueXxxxH Fffeh Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesM.A.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Barracuda 7200.7 Serial ATA Product Manual, Rev. N Presales Support Internet MySeagate Reseller.seagate.comTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call center Presales and Technical Support Warranty Service FAX services-All Europe toll callToll-free support numbers Asia/Pacific support services Publication feedback survey Barracuda 7200.7 Serial ATA Product Manual, Rev. N Index Mtbf RPM RRL Page Page Seagate Technology LLC