User manual MAXTOR ST11900W INSTALLATION

[. . . ] Hawk 2 (Wide bus) Family Install Guide, Rev. HAWK 2 Family: . . . . . . . . . . . . . . . . . . . . . . . (Wide Bus) . . . . . . . . . . . . . . . . . . . . . . . Installation Guide . . . . . . . . . . . . . . . . . . . . . . . Hawk Contents2 (Wide bus) Family Install Guide, Rev. C Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Note whether the drive model number ends in W, WC or WD. These procedures are described in paragraphs following. SCSI interface cable connection The drives covered by this manual are SCSI interface drives. For "W" and "WD"" models, system connection is via a 68 pin, SCSI connector. For "WC" models system connection is via an 80 pin SCSI connector. Normally "WC" models plug directly into a PCB or bulkhead mounted mating 80 pin connector. Some cables have a contrasting color stripe on one edge to indicate pin 1. The I/O connector is keyed by virtue of its shape. There is only one way it can mate with the mating input connector. Strain relief is recommended at the cable for drives using cables. Do not block system cooling air flow in routing of cables. DC Power connection Model ST12400W/WD family drives receive DC power through a 4 pin connector mounted on the PCB next to the SCSI I/O connector. See Figure 1. Hawk 2 (Wide bus) Family Install Guide, Rev. C J1 J1-Auxiliary 19 68 Pin SCSI I/O Connector 4P 3P 2P 1P DC Power Connector Pin 1P 2P 3P 4P Power +12V +12V ret + 5V ret + 5V Figure 1. DC power connection, 68 pin SCSI I/O connector Model ST12400WC model drives receive power from the host computer through the 80 pin combined SCSI I/O and power connector (not shown, since a separate DC power cable not required). No separate DC power connector is provided on the drive. SCSI address selection On "W" and "WD" model drives, make sure that the SCSI bus address jumper plugs are properly set for the bus address assigned to the drive. In some systems, a cable plugs into either J6 or J1auxiliary, so drive ID can be set at some remote location. See figures 3a and 3b showing the bus address select header and the jumper configurations that select addresses 0 through 15. Typically the primary boot device is set to ID 0, and the subsequent SCSI drives are jumpered in ascending order. Bus addresses 0 through 14 should be used (the host adapter probably uses address 15). 20 Hawk 2 (Wide bus) Family Install Guide, Rev. C If the drive LED shows no on/off activity when the host is trying to communicate with it, an incorrect bus address selection at the drive (or remote ID select location) should be suspected. On "WC" model drives the SCSI ID can be and presumably will be, set over the 80 pin interface by the host computer. [. . . ] Screw tightening torque 8. 0 in-lb (. 90 NM) max with minimum thread engagement of . 12 in. [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0. 20 in. Screw tightening torque 8. 0 in-lb (. 90 NM) max with minimum thread engagement of . 12 in. [. . . ]