Seagate ST318438LW, ST318418N, ST336938LW, ST336918N manual +DBP1

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Barracuda 36ES2 Product Manual, Rev. B

67

Table 15: LW 68-conductor LVD P cable signal/pin assignments [11]

Note. A minus sign preceding a signal name indicates that signal is active low.

 

Connector

 

 

 

Connector

 

Signal

contact

Cable conductor

contact

Signal

name [1]

number [3]

number [2]

 

number [3]

name [1]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+DB12

1

1

 

2

35

–DB12

+DB13

2

3

 

4

36

–DB13

+DB14

3

5

 

6

37

–DB14

+DB15

4

7

 

8

38

–DB15

+DBP1

5

9

 

10

39

–DBP1

+DB0

6

11

 

12

40

–DB0

+DB1

7

13

 

14

41

–DB1

+DB2

8

15

 

16

42

–DB2

+DB3

9

17

 

18

43

–DB3

+DB4

10

19

 

20

44

–DB4

+DB5

11

21

 

22

45

–DB5

+DB6

12

23

 

24

46

–DB6

+DB7

13

25

 

26

47

–DB7

+DBP

14

27

 

28

48

–DBP

Ground

15

29

 

30

49

Ground

DIFFSNS [8]

16

31

 

32

50

Ground

TermPwr

17

33

 

34

51

TermPwr

TermPwr

18

35

 

36

52

TermPwr

Reserved

19

37

 

38

53

Reserved

Ground

20

39

 

40

54

Ground

+ATN

21

41

 

42

55

–ATN

Ground

22

43

 

44

56

Ground

+BSY

23

45

 

46

57

–BSY

+ACK

24

47

 

48

58

–ACK

+RST

25

49

 

50

59

–RST

+MSG

26

51

 

52

60

–MSG

+SEL

27

53

 

54

61

–SEL

+C/D

28

55

 

56

62

–C/D

+REQ

29

57

 

58

63

–REQ

+I/O

30

59

 

60

64

–I/O

+DB8

31

61

 

62

65

–DB8

+DB9

32

63

 

64

66

–DB9

+DB10

33

65

 

66

67

–DB10

+DB11

34

67

 

68

68

–DB11

Notes [ ]: See page following this table.

Image 77
Contents Product Manual, Volume Page Product Manual, Volume Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Installation Defect and error managementSeagate Technology support services Interface requirementsBarracuda 36ES2 Product Manual, Rev. B Vii List of FiguresPage Barracuda 36ES2 family drive ST336938LW shown ScopeBarracuda 36ES2 Product Manual, Rev. B Applicable standards and reference documentation Taiwanese Bsmi Australian C-TickKorean MIC General description Media characteristics Standard featuresPerformance ReliabilityProgrammable drive capacity Factory installed accessoriesOptions factory installed Performance characteristics Prefetch/multi-segmented cache control Ultra2 Scsi Ultra160 ScsiStart/stop time Caching write data Cache operationPrefetch operation Barracuda 36ES2 Product Manual, Rev. B Reliability specifications Preventive maintenance Reliability and serviceService life Service philosophyControlling S.M.A.R.T 7 S.M.A.R.TReporting control Performance impactDetermining rate Predictive failuresDST Failure Definition State of the drive prior to testingImplementation Invoking DSTShort test Function Code 001b Product warrantyExtended test Function Code 010b Log page entriesProduct repair and return information Barracuda 36ES2 Product Manual, Rev. B DC power requirements Physical/electrical specificationsAC power requirements 3 12 V Current profile Power sequencingConducted noise immunity +5 Volt Current during spindle start Typical Amper es Amps Power dissipation ST336938/ST318438 Barracuda 36ES2 Product Manual, Rev. B ST336918/ST318418 Environmental limits TemperatureEffective altitude sea level Barracuda 36ES2 Product Manual, Rev. B Relative humidityShock and vibration ShockRecommended mounting Acoustics Air cleanlinessBarracuda 36ES2 Product Manual, Rev. B Vibration Dimension Table Mechanical specificationsMounting configuration dimensions Barracuda 36ES2 Product Manual, Rev. B Drive internal defects Defect and error managementDrive error recovery procedures Scsi systems errors Configure drive options InstallationFormatting Drive ID/option select headerDo not install jumpers retain cover J6 jumper header for N model J5 jumper header on LW models only J2 option select header for LW models Barracuda 36ES2 Product Manual, Rev. B Barracuda 36ES2 Product Manual, Rev. B Function description Air flow Drive orientationCooling Grounding Barracuda 36ES2 Product Manual, Rev. B Drive mountingBarracuda 36ES2 Product Manual, Rev. B Scsi interface messages supported Interface requirementsScsi interface commands supported Commands supported by Barracuda 36ES2 family drives Barracuda 36ES2 Product Manual, Rev. B Vendor ID Unit serial number page 80h Inquiry Vital Product dataImplemented operating definition page 81h Firmware numbers page C0hJumper settings page C2h Mode Sense data DEF CHG Barracuda 36ES2 Product Manual, Rev. B Condition/features supported Supported Status supported Physical interface DC cable and connector2 REQ/ACK offset Model drive physical interface 50-pin Scsi I/O connector Pin Power Scsi interface cable requirements Scsi interface physical descriptionMating connectors for N model drives Barracuda 36ES2 Product Manual, Rev. B Mating connectorsScsi daisy chain interface cabling for N drives Nonshielded 68 pin Scsi device connector used on LW drives Scsi daisy chain interface cabling for LW drives GND GND DBP1 +DBP1 Multimode-SE and LVD alternatives Multimode signalsElectrical description LVD output signals Input characteristicsReceiver characteristics Transmitter characteristicsSingle-ended drivers/receivers for N models Single-ended drivers/receivers for LW modelsLow voltage differential I/O circuits General cable characteristicsLW drives Terminator power DrivesTerminator requirements Page Following table provides drive activity LED status Drive activity LEDAutomated Services Seagate Technology support services Online ServicesPresales Support Technical SupportEuropean Support Services Customer Service CSOUSA/Canada/Latin America Support Services Call Center Toll-free Direct dial Africa/Middle East Support ServicesAsia/Pacific Support Services Barracuda 36ES2 Product Manual, Rev. B Index Diffsens LED PCB System chassis Barracuda 36ES2 Product Manual, Rev. B