Seagate Momentus XT / Laptop SSHD Momentus XT Product Manual - Page 26

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Momentus XT Product Manual, Rev. B

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.

Figure 2. 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 3.

Figure 3. Attaching SATA cabling

Each cable is keyed to ensure correct orientation.

Jumper block

SATA interface connector

SATA power connector

Limit data transfer rate to

1.5 Gbits per second

3.0 Gbits per second operation

Power cable

SATA interface cable

SATA interface connector

Power connector

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	11
2.2.1 LBA mode	11
2.2.2 Solid State Hybrid feature	11
2.3 Default logical geometry	11
2.4 Physical organization	12
2.5 Recording and interface technology	12
2.6 Physical characteristics	12
2.7 Seek time	13
2.8 Start/stop times	13
2.9 Power specifications	14
2.9.1 Power consumption	14
2.9.1.1 Typical current profile	15
2.9.2 Conducted noise	16
2.9.3 Voltage tolerance	16
2.9.4 Power-management modes	17
2.10 Environmental specifications	18
2.10.1 Ambient temperature	18
2.10.2 Temperature gradient	18
2.10.3 Relative humidity	18
2.10.4 Wet bulb temperature	18
2.10.5 Altitude	18
2.10.6 Shock	19
2.10.6.1 Operating shock	19
2.10.6.2 Nonoperating shock	19
2.10.7 Vibration	19
2.10.7.1 Operating vibration	19
2.10.7.2 Nonoperating vibration	19
2.11 Acoustics	19
2.12 Electromagnetic immunity	20
2.13 Reliability	20
2.14 Agency certification	21
2.14.1 Safety certification	21
2.14.2 Electromagnetic compatibility	21
2.14.3 FCC verification	21
2.15 Environmental protection	23
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	23
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive	23
2.16 Corrosive environment	24
3.0 Configuring and mounting the drive	25
3.1 Handling and static-discharge precautions	25
3.2 Configuring the drive	26
3.3 Serial ATA cables and connectors	26
3.4 Drive mounting	27
4.0 Serial ATA (SATA) interface	28
4.1 Hot-Plug compatibility	28
4.2 Serial ATA device plug connector pin definitions	29
4.3 Supported ATA commands	30
4.3.1 Identify Device command	32
4.3.2 Set Features command	35
4.3.3 S.M.A.R.T. commands	36
5.0 Seagate Technology support services	37
Index	39
A	39
B	39
C	39
D	39
E	39
F	39
G	39
H	40
I	40
K	40
L	40
M	40
N	40
O	40
P	40
Q	40
R	40
S	41
T	41
U	41
V	41

Seagate Momentus XT / Laptop SSHD Momentus XT Product Manual - Page 26

Configuring the drive, Serial ATA cables and connectors

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