Seagate ST3000VN000, ST2000VN000 manual Sata Interface, Segment Pin Function Definition

4.0 SATA Interface

These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.

For detailed information about the SATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1Hot-Plug compatibility

NAS HDD drives incorporate connectors which enable you to hot plug these drives in accordance with the SATA Revision 3.0 specification. This specification can be downloaded from www.serialata.org.

4.2SATA device plug connector pin definitions

Table 6 summarizes the signals on the SATA interface and power connectors.

Table 6 SATA connector pin definitions

Segment	Pin	Function	Definition
	S1	Ground	2nd mate
	S2	A+	Differential signal pair A from Phy
	S3	A-
	S4	Ground	2nd mate
	S5	B-	Differential signal pair B from Phy
	S6	B+
Signal
	S7	Ground	2nd mate

Key and spacing separate signal and power segments

NAS HDD Product Manual, Rev. A 25