Configuring The Drive; Serial Ata Cables And Connectors - Seagate BARRACUDA XT SERIES SATA ST32000641AS Product Manual

3.2

Configuring the drive

Each drive on the Serial ATA interface connects point-to-point with the Serial ATA host adapter. There is no master/slave
relationship because each drive is considered a master in a point-to-point relationship. 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. 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.
3.3

Serial ATA cables and connectors

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connections. 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 defi-
nitions. 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 1.
Signal connector
Signal cable
Power cable
Figure 1. Attaching SATA cabling
Each cable is keyed to ensure correct orientation. Barracuda XT drives support latching SATA connectors.
Barracuda XT Series SATA Product Manual, Rev. C
Power connector
17