Seagate ST3146854LC - Cheetah 146.8 GB Hard Drive User Manual page 9

Figure 1. Cheetah 15K.4 SCSI family drive (ST3146854LC shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Typical ST3146854 drive +12V LVD current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 3. Typical ST3146854 drive +5 V LVD current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 4. Typical ST373454 drive +12V LVD current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 5. Typical ST373454 drive +5V LVD current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 6. Typical ST336754 drive +12V LVD current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 7. Typical ST336754 drive +5V LVD current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 8. ST3146854 DC current and power vs. IOPS (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 9. ST3146854 DC current and power vs. IOPS (LVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 10. ST373454 DC current and power vs. IOPS (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 11. ST373454 DC current and power vs. IOPS (LVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 12. ST336754 DC current and power vs. IOPS (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 13. ST336754 DC current and power vs. IOPS (LVD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 14. Locations of the HDA temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15. Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 16. LW mounting configuration dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 17. LC mounting configuration dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 18. J6 jumper header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 19. J5 jumper header (on LW models only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 20. J2 option select header (on LW models only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 21. Air flow (suggested) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 22. LW model drive physical interface (68-pin J1 SCSI I/O connector) . . . . . . . . . . . . . . . . . . . . 66
Figure 23. LC model drive physical interface (80-pin J1 SCSI I/O connector). . . . . . . . . . . . . . . . . . . . . 66
Figure 24. SCSI daisy-chain interface cabling for LW drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 25. Nonshielded 68-pin SCSI device connector used on LW drives . . . . . . . . . . . . . . . . . . . . . . 71
Figure 26. Nonshielded 80-pin SCSI SCA-2 connector used on LC drives . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 27. Typical SE-LVD alternative transmitter receiver circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Cheetah 15K.4 SCSI Product Manual, Rev. D
List of Figures
iii