Seagate ST3250823NS, ST3250623NS 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 5 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. NL35 Series Serial ATA drives support latching SATA con- nectors.

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NL35 Series SATA Product Manual, Rev. B

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Contents NL35 Series Serial ATA ST3400832NS ST3400632NS ST3250823NS ST3250623NSPage Contents NL35 Series Sata Product Manual, Rev. B List of Figures Page Introduction NL35 Series Serial ATAAbout the Serial ATA interface Drive specifications Specification summary tablesSustained transfer rate OD Mbytes/sec Nonoperating Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Physical characteristics Recording and interface technologySeek time Typical seek times msec Read WritePower specifications Start/stop timesDC power requirements Typical current profilesPower-management modes Active modeIdle mode Sleep modeEnvironmental specifications Acoustics Electromagnetic immunity ReliabilityRadio frequency environments Test Description Performance level Reference standardSafety certification Agency certificationElectromagnetic compatibility Korean RRLEnvironmental protection Corrosive environmentAustralian C-Tick N176 FCC verificationPage Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingNL35 Series Sata Product Manual, Rev. B Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands A.R.T. commands3.1 S.M.A.R.T. Command Transport SCT Code in features register A.R.T. commandNL35 Series Sata Product Manual, Rev. B Seagate Technology support services InternetPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index ITE RPM Page Page Seagate Technology LLC
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