Seagate ST3500841SCE, ST3120213SCE manual Configuring the drive, Serial ATA cables and connectors

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3.3Configuring 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. It is usually not necessary to set any jumpers on the drive for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA- equipped motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation. If you have a motherboard or host adapter that does not support autonegotiation:

•Install a jumper as shown in Figure 4 below to limit the data transfer rate to 1.5 Gbits per second (and leave the drive connected to the SATA-equipped motherboard or host adapter that doesn’t support autonegotiation) or

•Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal operation” (see Figure 4 below), and connect the drive to that adapter. This option has the benefit of not limiting the drive to a 1.5 Gbits/sec transfer rate.

Normal operation

Limit data transfer rate to 1.5 Gbits per second

Jumper block

SATA power connector

SATA interface connector

Figure 4. Serial ATA jumper block and connectors

3.4Serial 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 6 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 5.

Signal connector

Power connector

Signal cable

Power cable

Figure 5. Attaching SATA cabling

Each cable is keyed to ensure correct orientation. DB35.2 Serial ATA drives support latching SATA connectors.

DB35.2 Serial ATA Product Manual, Rev. C

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Contents DB35.2 Serial ATA Page Contents DB35.2 Serial ATA Product Manual, Rev. C List of Figures Page Introduction About the Serial ATA interface Specification summaries Drive specificationsDrive specification ST3500841SCE ST3400833SCE Drive specifications for 500 and 400 Gbyte modelsBe asked to provide the drive serial number, model number or Drive specification ST3300822SCE ST3250824SCE ST3200827SCE Drive specifications for 300, 250 and 200 Gbyte modelsDrive specifications for 300, 250 and 200 Gbyte models Drive specification ST3160212SCE ST3120213SCE ST3802110SCE Drive specifications for 160, 120, and 80 Gbyte modelsDrive specifications for 160, 120, and 80 Gbyte models Recording and interface technology Default logical geometryLBA mode Formatted capacityDB35.2 Serial ATA Product Manual, Rev. C Typical seek times msec Read Write Physical characteristicsDrive specification Seek timeStart/stop times Power specificationsTypical current profiles DC power requirementsSleep mode Power-management modesActive mode Idle modeEnvironmental specifications Operating vibration AcousticsNonoperating shock VibrationPerformance Reference Test Description Level Standard Electromagnetic immunityReliability Radio frequency environmentsKorean RRL Safety certificationAgency certification Electromagnetic compatibilityEuropean Union Restriction of Hazardous Substances RoHS Environmental protectionAustralian C-Tick N176 FCC verificationCorrosive environment DB35.2 Serial ATA Product Manual, Rev. C Handling and static-discharge precautions Configuring and mounting the driveBreather filter hole location Breather filter hole precautionsSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewHot-Plug compatibility Serial ATA Sata interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command DB35.2 Serial ATA Product Manual, Rev. C Presales Support InternetTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index Pcba Sata Page Page Seagate Technology LLC
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