User manual MAXTOR BARRACUDA 2LP VOLUME 1

[. . . ] Product Manual, Volume 1 ST32550W/WD, ST32550WC/DC ST31250WC/DC, ST32550N/ND, ST31250N/ND, ST31250W/WD, Barracuda 2LP Disc Drive Product Manual, Volume 1 ST32550W/WD, ST32550WC/DC ST31250WC/DC, ST32550N/ND, ST31250N/ND, ST31250W/WD, Barracuda 2LP Disc Drive © 1996 Seagate Technology, Inc. All rights reserved Publication number: 83328930, Rev. D January 1996 Seagate® , Seagate Technology®, and the Seagate logo are registered trademarks of Seagate Technology, Inc. BarracudaTM is a trademark of Seagate Technology, Inc. [. . . ] This philosophy minimizes the requirements for highly trained personnel to integrate the drive into the OEM's system, whether in a factory or field environment. Refer to Section 4. 4 and to the Barracuda 2LP Installation Guide (83328920) for installation instructions. The drive has been low-level formatted at the factory and does not need to be reformatted. 6. 2. 7 Service tools No special tools are required for site installation or recommended for site maintenance. The depot repair philosophy of the drive precludes the necessity for special tools. Field repair of the drive is not practical because users cannot purchase individual parts for the drive. 6. 2. 8 Hot plugging Barracuda 2LP disc drives Caution. Hot-plug drives are not designed for simultaneous power disconnection and physical removal. During power-up and power-down periods, the hot SCSI connect/disconnect capability does not produce glitches or any corruptions on an active SCSI bus. Barracuda 2LP drives conform to the SCSI-3 standard requirements for glitch-free power-on and power-off. The drive maintains the high-impedance state of the device connector contacts during a power cycle until the transceiver is enabled. The systems integrator must ensure that no temperature, energy, or voltage hazard is presented during the hot connect/disconnect operation. Configure the drive with no connection between the drive and the TRMPWR signal on the SCSI bus. To accomplish this, remove all jumpers from connector J1. Ensure that all SCSI devices on the bus have receivers that conform to the SCSI-3 standard. Barracuda 2LP Product Manual, Rev. Eliminate all I/O processes for the drive. 31 4. Wait until the drive motor and discs have come to a complete stop prior to changing the plane of operation, ensuring data integrity. Insert or remove the drive after meeting the following conditions: Caution. Do not hot-plug the first or last device on the SCSI bus (the SCSI bus termination must be external to the drive you are inserting or removing). If you are inserting the drive, connect its power ground and logic ground at least 1 millisecond before coming into contact with the bus connector. Maintain these ground connections during and after connecting the device to the bus. If you are removing the device, maintain its power ground and logic ground connection for at least 1 millisecond after disconnecting the device from the bus. You may simultaneously switch the power to the electronics and mechanics of the drive with the bus contacts, if the power distribution system is able to maintain adequate power stability to other devices during the transition and if you have met the grounding requirements given in steps 5a and 5b. Ensure that the drive carrier discharges all static electricity prior to inserting the drive into the system. [. . . ] All other signals should be connected as defined. 82 Barracuda 2LP Product Manual, Rev. D 11. 10 SCSI single-connector attachment (SCA) physical interface * Side View 7. 00 (. 276) 1. 52 (. 060) 2. 70 (. 106) 1. 32 (. 052) Section X­X 57. 87 0 (2. 278) ­0. 15 + . 000 ­ . 006 12. 70 (. 500) [ [ M 0. 15 M Y ­Y­ Front View Pin 1 * 62. 15 ± 0. 15 (2. 447) (± . 005) 0. 15 Housing X M Y M Insert cable connector here Top View PCB Contacts 0. 50 (. 020) 0. 3 (. 012) M 1. 27 (. 05) Typ Y M X C of Datum Y L Pin 1 Back View * Contacts are recessed along the center strip (see side view). Figure 33. Non-shielded, 80-pin I/O and DC power single-connector attachment (SCA) Barracuda 2LP Product Manual, Rev. SCA contact assignments for ST31250WC/ST32550WC drives Connector + Signal name contact 12V 1 12V 2 12V 3 12V 4 RESERVED/NC 5 RESERVED/NC 6 DB (11) 7 DB (10) 8 DB (9) 9 DB (8) 10 I/O 11 REQ 12 C/D 13 SEL 14 MSG 15 RST 16 ACK 17 BSY 18 ATN 19 DB(P0) 20 DB(7) 21 DB(6) 22 DB(5) 23 DB(4) 24 DB(3) 25 DB(2) 26 DB(1) 27 DB(0) 28 DB(P1) 29 DB(15) 30 DB(14) 31 DB(13) 32 DB(12) 33 5V 34 5V 35 5V 36 SYNC 37 RMT_START 38 SCSI ID(0) 39 SCSI ID(2) 40 Connector contact 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 - Signal name 12V GROUND 12V GROUND 12V GROUND 12V GROUND RESERVED/NC RESERVED/NC GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND 5V GROUND 5V GROUND 5V GROUND ACTIVE LED OUT DLYD_START SCSI ID(1) SCSI ID(3) 84 Barracuda 2LP Product Manual, Rev. [. . . ]