User manual MAXTOR HAWK 2 INSTALLATION REV C 03-1994

[. . . ] HAWK 2 Family: . . . . . . . . . . . . . . . . . . . . . . . . . . . ST12400N/ND/NC . . . . . . . . . . . . . . . . . . . . . . . . . . . ST11900N/ND/NC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electromagnetic interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] (abfall van -10% is erlaubt für 10 Sekunden max). [6] Measured with an average reading DC ammeter. Instantaneous +12 V current peaks will exceed these values. [7] Can be commanded to operate according to SCSI1 protocol. [8] Standard ST11900 units are factory formatted with 512 data bytes per sector with six spare sectors per cylinder and 2 cylinders at inner tracks reserved for spares in addition to capacity listed. Hawk 2 Family Installation Guide, Rev. C 17 Initial setup information For the initial setup connect the cables, set the SCSI bus address and remove, install, or leave as is the SCSI I/O line terminator resistor packs. These procedures are described in paragraphs following. Before continuing, note whether drive model number letter suffix contains N, ND or NC. SCSI interface cable connection Hawk 2 family model drives are SCSI interface drives. System connection is via a 50 pin, SCSI connector, except for "NC" models which have an 80 pin combined SCSI I/O and power connector, Pin 1 is noted in Figure 1 for the 50 pin connector. Some cables have a contrasting color stripe on one edge to indicate pin 1. Because of the non-symmetrical shape of the 80 pin connector there is only one way that it can mate with the input connector. Strain relief is recommended for the cable. Do not block system cooling air flow in routing of cables. 18 Hawk 2 Family Installation Guide, Rev. C SCSI address selection On "N/ND" drives, make sure that the SCSI bus address jumper(s) are properly set for the bus address assigned to the drive. See figures at beginning of Section 3 showing the bus address select header and the jumper configurations that select addresses 0 through 7. Typically the primary boot device is set to ID 0, and the subsequent SCSI drives are jumpered in ascending order. Bus addresses 0 through 6 should be used (the host adapter usually uses address 7). 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 should be suspected. On "NC" model drives the SCSI ID can be, and presumably will be set over the 80 pin interface by the host computer. Unless directed to do so by the host system documentation, no jumpers should be installed for address selection. On "NC" models, the host has also complete control over motor start functions, so no motor start or delayed motor start jumpers should be installed. Hawk 2 Family Installation Guide, Rev. [. . . ] See Sections 2 and 3. Hawk 2 Family Installation Guide, Rev. C 35 Do not power up the host system until the drive is mounted and the system cover is replaced. · Connect DC power connector to the drive, except on "NC" model drives which do not have a separate DC power connector. · Boot the system from the floppy drive or from a previously installed hard-drive if there is one. [. . . ]