Configuring The Drive; Serial Ata Cables And Connectors; Figure 3. Serial Ata Connectors; Figure 4. Attaching Sata Cabling - Seagate ST9100824AS - Momentus 5400.2 100 GB Hard Drive Product Manual

3.2

Configuring 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 interface connector
Jumper block
(factory use only)

Figure 3. Serial ATA connectors

3.3

Serial 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 7
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.
SATA interface cable

Figure 4. Attaching SATA cabling

Each cable is keyed to ensure correct orientation.
18
SATA power connector
SATA interface connector
Power connector
Power cable
Momentus 5400.2 SATA Product Manual, Rev. C