20 Barracuda 7200.7 Serial ATA Product Manual, Rev. N
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 consid ered 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 ar e
Device 0 (master) devices.
Serial ATA drives are designed for easy installation with no jumpers, terminators, or other se ttings. 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.
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 len gth of one m eter (39.37 i nches) . See Table 8
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 conne ctors are inser ted directl y into t he host r eceptacle. T he drive
and the host receptacle incorporate features that enabl e the direct conn ection to be hot pluggable and blin d
mateable.
For installations which require cables, you can connect the dr ive as illustrated in Figure 4.
Figure 4. Attaching SATA cabling
Each cable is keyed to ensure correct orientation.
Jumper Block
(
factory use only)
SATA Signal
SATA Power
Power cable
S
ignal cable
Signal connector
Power connector