Seagate ST9320424AS, ST980414ASG manual Configuring the drive, Serial ATA cables and connectors

Models: ST9250424AS ST980414ASG ST9320424AS ST9250424ASG ST9120414AS ST9320424ASG ST9160414ASG ST9120414ASG ST9160414AS

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3.2Configuring the drive

Do not obstruct the breather hole located on the top cover of the drive. Refer to Figure 4 for the exact location of this hole.

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.

3.0 Gbits per second operation

Limit data transfer rate to 1.5 Gbits per second

Jumper block

SATA power connector

SATA interface connector

Figure 2. 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 3.

SATA interface connector

Power connector

SATA interface cable

Power cable

Figure 3. Attaching SATA cabling

Each cable is keyed to ensure correct orientation.

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Momentus 7200 FDE.1 SATA Product Manual, Rev. A

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Seagate ST9320424AS Configuring the drive, Serial ATA cables and connectors, Serial ATA connectors, Attaching SATA cabling