Product manual

Barracuda 4LP Product Manual, Rev. D ix
Figures
Figure 1. Barracuda 4LP family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Barracuda 4LP family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Typical Barracuda 4LP family drive +5 V and +12 V current profile. . . . . . . . . . . . . . . . . . . . 20
Figure 4. Locations of PCB components listed in Table 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 5. Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 6a. Mounting configuration dimensions for models “N” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 6b. Mounting configuration dimensions for models “W” and “WD”. . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 6c. Mounting configuration dimensions for models “WC” and “DC” . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 7a. Barracuda 4LP family drive ID select header for models “N” . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 7b. Barracuda 4LP family drive ID select for models “W,” “WC,” “WD,” and “DC” . . . . . . . . . . . . 33
Figure 7c. Barracuda 4LP family drive ID select header J1-auxiliary for models “W” and “WD”
(J1-Auxiliary Pins 1A - 12A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 7d. Barracuda 4LP family drive option select header for models “N,” “W,” and “WD” . . . . . . . . . 35
Figure 7e. Barracuda 4LP family drive option select header for models “WC” and “DC” . . . . . . . . . . . . 35
Figure 8. Air flow (suggested) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 9a. Physical interface for “N” model drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 9b. Model “W” and “WD” drive physical interface (68 pin J1 SCSI I/O connector). . . . . . . . . . . . 54
Figure 9c. Model “WC” and “DC” drive physical interface (80 pin J1 SCSI I/O connector and
DC power connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 10. SCSI Daisy-chain interface cabling for “N,” “W,” and “WD” model drives . . . . . . . . . . . . . . . 58
Figure 11a. Nonshielded 50 pin SCSI device connector used on “N” models. . . . . . . . . . . . . . . . . . . . . . 59
Figure 11b. Nonshielded 68 pin SCSI device connector used on “W” and “WD” models . . . . . . . . . . . . . 60
Figure 11c. Nonshielded 80 pin SCSI “SCA-2” connector, used on “WC” and “DC” models . . . . . . . . . . 61
Figure 12. Single-ended transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 13. Typical differential I/O line transmitter/receiver and external terminators . . . . . . . . . . . . . . . 70