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................................................. Hawk 2XL Disc Drive ................................................. ST32151N/W/WC, ST31051N/W/WC ................................................. ST32155N/W/WC, ST31055N/W/WC ................................................. ................................................. Product Manual, Volume 1 ................................................. Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
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................................................. Hawk 2XL Disc Drive ................................................. ST32151N/W/WC, ST31051N/W/WC ................................................. ST32155N/W/WC; ST31055N/W/WC ................................................. ................................................. Product Manual, Volume 1 ................................................. Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
© 1996 Seagate Technology, Inc. All rights reserved April 1996 Publication number: 77767489, Rev. B Seagate®, Seagate Technology®, and the Seagate logo are registered trademarks of Seagate Technology, Inc. EliteTM, SeaFAXTM, SeaFONETM, SeaTDDTM, and SeaBOARDTM are trademarks of Seagate Technology, Inc. Other product names are registered trademarks or trademarks of their owners. No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc.
Revision status summary sheet Revision Date Writer/Engineer Sheets Affected A B 5/2/96 D. Ashby Ashby and Kiene 1-75 9, 23 and 25 Product Manual 77767489 is Volume 1 of a two Volume document with the SCSI Interface information in the Volume 2 SCSI Interface Product Manual, P/N 77738479. If the SCSI Interface information is needed the Volume 2 Interface Manual should be ordered, P/N 77738479. Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
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Hawk 2XL Product Manual, Rev. B vii Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.
viii Hawk 2XL Product Manual, Rev. B 6.5 6.4.6 Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 7.0 Defect and error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 7.1 Drive internal defects and errors . . . . . . . . . . . . . . . . . .
Hawk 2XL Product Manual, Rev. B ix List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6a. Figure 6b. Figure 6c. Figure 7a. Figure 7b. Figure 7c. Figure 7d. Figure 7e. Figure 8. Figure 9a. Figure 9b. Figure 9c. Figure 10. Figure 11a. Figure 11b. Figure 11c. Figure 12. Hawk 2XL family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Hawk 2XL family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Hawk 2XL Product Manual, Rev. B 1.0 1 Scope This manual describes the Seagate Technology, Inc. Hawk 2XL family of disc drives. This high capacity, high performance member of the Seagate 1-inch high 3.5-inch rigid disk family is a next generation product from the Hawk 2LP (ST34230) disc drive. The Hawk 2XL features a new cost-optimized HDA, reduced cost SCSI code, reduced header fields and the use of innovative technology in the embedded servo, R/W heads, read circuits and SCSI controller.
2 Hawk 2XL Product Manual, Rev. B . * *Model “N” version with 50 pin SCSI I/O connector Figure 1. Hawk 2XL family drive Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Hawk 2XL Product Manual, Rev. B 2.0 3 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends upon its host equipment to provide adequate power and environment in order to achieve optimum performance and compliance with applicable industry and governmental regulations.
4 2.3 Hawk 2XL Product Manual, Rev. B Reference documents Installation Guide Seagate P/N 77767490 SCSI Interface Manual Seagate P/N 77738479 ANSI Small Computer System Interface (SCSI): Document Number ANSI3.131-1986 (X3T9/84.40 Rev. 1B) (X3T9.2/82-2 Rev. 17B), X3T9.2/86-109 Revision 10H (SCSI-2) and X3T9.2-184 Rev. 4 (SCSI-3). ANSI - draft proposed: Document Number X3T10/1071D, SCSI-3 FAST-20 revision 6. Package Test Specification Seagate P/N 30190-001 (under 100 lb.
Hawk 2XL Product Manual, Rev. B 3.0 5 General description The drives are a member of a family of low cost, high performance, highly reliable, random access storage devices designed to meet the needs of the OEM marketplace. The drive records and recovers data on 3.5 inch (89 mm) fixed discs. The drive supports the Small Computer System Interface as described in the ANSI SCSI-2 and SCSI-3 Interface Manuals to the extent described in this product Manual (Vol.
6 Figure 2. Hawk 2XL Product Manual, Rev. B Hawk 2XL family drive Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Hawk 2XL Product Manual, Rev. B 3.
8 Hawk 2XL Product Manual, Rev. B 3.5 Unformatted and formatted capacities Formatted capacity depends on the number of spare reallocation sectors reserved and the number of bytes per sector. The following table shows some typical 512 byte sector size [1] formatted capacities (rounded off). Spare Sector or Cylinders Reserved for reallocation No Spares Five Spare Sectors per Cylinder [2] Ten Spare Sectors per Cylinder [2] ST32151 GB ST32155 GB ST31051 GB ST31055 GB 2.18 2.15 1.07 1.
Hawk 2XL Product Manual, Rev. B 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive Capacity Read/Write Heads Bytes/Track Bytes/Surface Tracks/Surface, Total Tracks/Inch Servo Heads Internal Data Rate Disc Rotational Speed Average Rotational Latency 4.2 ST32151/ST32155 ST31051/ST31055 2.54 8 75,900 318 4176 4800 0 44 - 66 5411 ± 0.5% 5.54 1.26 GByte (UNF) (Rounded off values) 75,900 315 4176 4800 0 44 - 66 5411 ± 0.5% 5.
10 Hawk 2XL Product Manual, Rev. B 4.2.2 Format command execution time (minutes) [1] Maximum (with verify) Maximum (no verify) 4.2.3 ST32151/ST32155 ST31051/ST31055 30 20 20 10 Generalized performance characteristics Minimum Sector Interleave (all Hawk 2XL models) 1 to 1 Data Transfer Rate (1 sector) - 512 Byte Sector, Data Buffer To/From Disc Media: Min. Avg. Max. [4]* [4] [4] ST32151/ST32155 ST31051/ST31055 5.1 7.1 8.2 5.1 7.1 8.
Hawk 2XL Product Manual, Rev. B 11 Notes for Sections 4.2. [1] [2] [3] [4] [5] [6] [7] 4.3 Execution time measured from receipt of the last Byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). Maximum times are specified over the worst case conditions of temperature, voltage margins and drive orientation.
12 Hawk 2XL Product Manual, Rev. B The following is a simplified description of a read operation with cache operation enabled: Case A - A Read command is received and the first logical block (LB) is already in cache: 1. Drive transfers to the initiator the first LB requested plus all subsequent contiguous LB’s that are already in the cache. This data may be in multiple segments. 2.
Hawk 2XL Product Manual, Rev. B 13 Whenever prefetch (read look-ahead) is enabled (enabled by DRA = 0), it operates under the control of ARLA (Adaptive Read Look-Ahead). If the host uses software interleave, ARLA enables prefetch of contiguous blocks from the disk when it senses that a prefetch “hit” will likely occur, even if two consecutive read operations were not for physically contiguous blocks of data (e.g. “software interleave”).
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Hawk 2XL Product Manual, Rev. B 5.0 15 Reliability specifications The following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 8.
16 5.1.4 Hawk 2XL Product Manual, Rev. B Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track. There shall be no more than one recoverable seek error in 107 physical seek operations. After detecting an initial seek error, the drive automatically reseeks to the addressed track up to 3 times.
Hawk 2XL Product Manual, Rev. B 17 Shipping: When transporting or shipping a drive, a Seagate approved container must be used. Keep your original box. They are easily identified by the Seagate Approved Package label. Shipping a drive in a non-approved container voids the drive warranty. Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in transit. Contact your Authorized Seagate Distributor to purchase additional boxes.
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Hawk 2XL Product Manual, Rev. B 19 6.0 Physical/electrical specifications 6.1 AC power requirements Not applicable to this drive. 6.2 DC power requirements The voltage and current requirements for a single drive are shown in the following table. Values indicated apply at the drive power connector. The single ended power requirements includes the internal disc drive SCSI I/O termination.
20 Hawk 2XL Product Manual, Rev. B 6.2.2 Power sequencing The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down. Daisy-chain operation requires that power be maintained on the terminated drive to ensure proper termination of the peripheral I/O cables. For the benefit of the system power supply, the drive power-up can be delayed using the motor start delay option. 6.2.
Hawk 2XL Product Manual, Rev. B 6.3 21 Power dissipation For drives with single ended interface circuits, typical operating random read power dissipation is 7.5 watts (25.6 BTUs per hour) of DC power average at nominal voltages. Typical power dissipation under idle conditions is 6.0 watts (20.5 BTUs per hour). 6.4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part.
22 Hawk 2XL Product Manual, Rev. B Model “WC” Single Ended I/O PCB [1] U8 U5 U13 HDA U7 U14 U2 U16 U1 U15 U4 J1 PCB 3 Model “N” Single Ended I/O PCB [1] U8 Model “W” Single Ended I/O PCB [1] U8 U5 U13 U5 U13 U7 U14 U16 U3 U7 U14 U2 U1 U15 U2 U16 U1 U15 U4 U4 J1 J1 PCB 1 PCB 2 [1] Bottom side of PCB Figure 4. Locations of components (listed in Table 3) 6.4.2 Relative humidity The values below assume that no condensation on the drive occurs. a.
Hawk 2XL Product Manual, Rev. B 6.4.3 23 Effective altitude (sea level) a. Operating -1000 to +10,000 feet (-305 to +3048 metres) b. Non-Operating -1000 to +40,000 feet (-305 to +12,210 metres) 6.4.4 Shock and vibration Shock and vibration limits specified in this document are measured directly on the drive chassis.
24 Hawk 2XL Product Manual, Rev. B B1 Z Y X A1 B1 B B A1 A E X Z A Y D E1 C D1 C1 E1 D1 C1 E D C Figure 5. Recommended mounting (Applicable to all Hawk 2XL family models) Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Hawk 2XL Product Manual, Rev. B 6.4.4.2 25 Vibration a. Operating The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding 5-22 Hz @ 0.020 inches (0.51 mm) displacement 22-400 Hz @ 0.5 g Vibration may be applied in the X, Y, or Z axis. b. Non-operating The limits of non-operating vibration shall apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives.
26 Hawk 2XL Product Manual, Rev. B 6.5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figures 6a, 6b and 6c for detailed mounting configuration dimensions. See Section 8.4, “Drive mounting.” Height: Width: Depth: Weight: 1.00 in 4.00 in 5.74 in 1.5 pounds 25.4 101.6 145.8 0.
Hawk 2XL Product Manual, Rev. B 27 [4] C [3] G L D [1] F E A Notes: [1] Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm). [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.20 in. (5.08 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm).
28 Hawk 2XL Product Manual, Rev. B [4] C [3] G L D [1] F E A Notes: [1] Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in. (3.05 mm). R [5] Pin 1 B Connector Centerline [2] Mounting holes four on bottom, 6-32 UNC. Max screw length into bottom of drive 0.20 in. (5.08 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.
Hawk 2XL Product Manual, Rev. B 7.0 29 Defect and error management The drive, as delivered, complies with this specification. The read error rate and specified storage capacity are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI system involves the drive internal defect/error management and SCSI systems error considerations (errors in communications between Initiator and the drive).
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Hawk 2XL Product Manual, Rev. B 8.0 31 Installation The first thing to do when installing a drive is to set the drive ID on the SCSI bus and set up (select) certain operating options. This is usually done by installing small shorting jumpers on the pins of connector J6 on the PCB (or J1-Auxiliary on the “W” and “WD” models), or via the drive to host I/O signals on “WC” and “DC” models. Some users connect cables to J6 or J1-Auxiliary and perform the set-up using remote switches.
32 Hawk 2XL Product Manual, Rev. B Drive Front Jumper Plug (enlarged to show detail) Pin 1 J6 L R R Reserved E E E A A A D S S 2 1 0 SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 [3] [4] Host Alternate Usage Plug: Reserved Pins 11 9 7 5 3 1 6 4 2 +5V Ground Shipped with cover installed. Do not install jumpers; retain cover unless 20 pin plug is installed. Optional connections to switching circuits in host equipment to establish drive ID.
Hawk 2XL Product Manual, Rev. B 33 Drive Front Jumper Plug (enlarged to show detail) Pin 1 J6 [1] Reserved L R E E D S A3 A2 A1A0 SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 [4] SCSI ID = 7 SCSI ID = 8 SCSI ID = 9 SCSI ID = 10 SCSI ID = 11 SCSI ID = 12 SCSI ID = 13 SCSI ID = 14 SCSI ID = 15 [3] [4] Host Alternate Usage Plug: Reserved Pins 11 9 7 5 3 1 8 +5V Ground 6 4 2 Shipped with cover installed.
34 Hawk 2XL Product Manual, Rev. B Drive HDA (rear view, PCB facing downward) Pin 1 J1-Auxiliary [1] [2] Pin 1A +5V Ground 4P [2] Pin 12A 68 Pin SCSI I/O Connector J1 3P 2P SCSI ID = 0 1P J1-DC Power (default) PCB SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 SCSI ID = 8 SCSI ID = 9 SCSI ID = 10 SCSI ID = 11 SCSI ID = 12 SCSI ID = 13 SCSI ID = 14 SCSI ID = 15 [3] [4] Host Alternate Usage Plug: +5V N.C.
Hawk 2XL Product Manual, Rev. B 35 Drive Front J2* Jumper Plug (enlarged to show detail) Caution: J2 Do not use J2 jumper plugs on J6 or J1-Auxiliary, as the internal contacts will be deformed and can not be used on J2 without them falling off. Jumper Positions R T D MW P E T T E S EP DSP P Terminator Enable Delay Motor Start (default) Enable Motor Start Write Protect Parity Disable Term. Power from Drive (default) Term. Power to SCSI Bus *Additional notes [ ] on these functions in section 8.1.
36 Hawk 2XL Product Manual, Rev. B 8.1.1 Notes for Figures 7a, 7b, 7c, 7d and 7e. [1] Notes explaining the functions of the various jumpers on jumper header connectors J2, J1-Auxiliary and J6 are given here and in Section 8.1.2. The term “default” means as standard OEM units are configured with a jumper on those positions when shipped from factory. “Off” means no jumper is installed; “On” means a jumper is installed. OFF or ON underlined is factory default condition.
Hawk 2XL Product Manual, Rev. B 8.1.2 37 Function description Notes for Figures 7d and 7e J2 Jumper Installation Jumper Function Description TE On (Applies only to “N” and “W” models) With the jumper installed, the On-board (non-removable) terminator circuits are enabled (connected to the I/O lines). Default is jumper installed. Off Terminator circuits not connected to I/O lines. DS Off Off On ME Off On Off On On WP On Off Entire drive is write protected. Drive is not write protected.
38 8.2 Hawk 2XL Product Manual, Rev. B Drive orientation The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive performance characterization, however, has been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, and these are the two preferred mounting orientations. 8.
Hawk 2XL Product Manual, Rev. B 39 Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Note. Air flows in the direction shown or in reverse direction (side to side) Figure 8. Under unit Air flow (suggested) Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
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Hawk 2XL Product Manual, Rev. B 41 9.0 Interface requirements 9.1 General description This section partially describes the interface requirements as implemented on the drives. The major portion of the interface requirements/implementation is described in the Seagate SCSI Interface Product Manual, P/N 77738479. This section has tables that give the Hawk 2XL Family drive's version of the SCSI implementation described in the SCSI Interface Product Manual. 9.
42 9.3 Hawk 2XL Product Manual, Rev. B SCSI interface commands supported Table 6 lists the SCSI interface commands that are supported in the SCSI-2 and SCSI-3 modes of the drive. OEM standard drives are shipped set to operate in SCSI-2/SCSI-3 mode.
Hawk 2XL Product Manual, Rev.
44 Hawk 2XL Product Manual, Rev. B 9.3.1 Inquiry data Table 7 following lists the Standard Inquiry command data that the drive should return to the initiator per the format given in the SCSI-2 Interface Product Manual P/N 77738479, section 5.1.1.3.
Hawk 2XL Product Manual, Rev. B 9.3.2 45 Mode Sense data The Mode Sense command provides a means for the drive to report its operating parameters to the initiator. The drive maintains four sets of Mode parameters, Default values, Saved values, Current values and Changeable values. Default values are hard coded in the drive firmware that is stored in flash EPROM nonvolatile memory on the drive PCB. Default values can be changed only by downloading a complete set of new firmware into the flash EPROM.
46 Hawk 2XL Product Manual, Rev. B The following tables list the values of the data bytes returned by the drive in response to the Mode Sense command pages for SCSI-2/SCSI-3 implementation (see SCSI Interface Product Manual, P/N 77738479). Definitions: DEF CHG = Default value. Standard drives are shipped configured this way. = Changeable bits; indicates if current and saved values are changeable.
Hawk 2XL Product Manual, Rev.
48 Hawk 2XL Product Manual, Rev. B 9.4 SCSI bus conditions and miscellaneous features supported Asynchronous SCSI bus conditions supported by the drive are listed below. These conditions cause the SCSI device to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneous operating features supported are also listed here. Refer to SCSI I/O Product manual P/N 77738479 for details. Table 9: SCSI bus conditions and other misc.
Hawk 2XL Product Manual, Rev. B 49 9.5 Synchronous data transfer 9.5.1 Synchronous data transfer periods supported Table 10 lists Synchronous Data transfer periods supported by the drive. The data transfer period to be used by the drive and the initiator is established by an exchange of messages during the Message Phase of operation. See the section on message protocol in the SCSI Interface Manual P/N 77738479.
50 Hawk 2XL Product Manual, Rev. B Power +12V +12V ret + 5V ret + 5V Pin 1 2 3 4 J1 4 Pin 1 3 2 1 DC Power Connector Pin 1 J1 J2 SCSI I/O Connector J6 Figure 9a. Physical interface for “N” model drives Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Hawk 2XL Product Manual, Rev. B 51 Pin 1P 2P 3P 4P J1 Pin 1 Power +12V +12V ret + 5V ret + 5V J1-Auxiliary Pin 1A 4P J1-DC Power 3P 2P 1P PCB J1-DC Power J1-Auxiliary Pin 1A Pin 1P J1 Pin 1 J2 68 Pin SCSI I/O Connector J6 Figure 9b. Model “W” drive physical interface (68 pin J1 SCSI I/O connector) J2 J1 80 Pin SCSI I/O and Power Connector Pin 1 J6 Note: See Table 11c for DC power pin assignments. Figure 9c.
52 9.6.2 Hawk 2XL Product Manual, Rev. B SCSI Interface physical description The drives may be daisy chained together or with other compatible SCSI devices. Both ends of the cable must be terminated. The “N”, “W” and “WC” model drives implement single-ended drivers and receivers. All signals are common between all SCSI devices. The drive may be daisy chained only with SCSI devices having the same type drivers and receivers.
Hawk 2XL Product Manual, Rev. B 9.6.4 53 Mating connectors Part numbers for the different type connectors that mate with the various Hawk 2XL I/O connectors are given in the sections following. 9.6.4.1 Mating connectors for “N” models The nonshielded cable connector shall be a 50 conductor connector consisting of two rows of 25 male contacts with adjacent contacts 100 mils apart.
54 Hawk 2XL Product Manual, Rev. B “N” Model Drive “W” Model Drive [6] [7] [1] 2 through 6 SCSI devices (or 15 for “W” models [4] Pin 1 (check your adapter for Pin 1 location) SCSI ID 1 SCSI ID 7 [5] [2] [1] Host Adapter PCB SCSI ID 0 [3] [2] [1] [2] [3] [4] [5] [6] [7] Closed end type 50 pin connector used. Install terminator enable (TE) jumper plug. Open end type (in-line application) connector used. Terminators disabled. Host need not be on the end of the daisy-chain.
Hawk 2XL Product Manual, Rev. B 55 Insert mating cable connector here .370 ± .010 (9.398) .60 (15.24) .42 Ref. (10.67) .20 Typ. (5.08) .065 x 45° Chamfer Typ. (1.65) .26 Typ. (6.60) Pin 1 .037 Ref. Typ. (.94) 3 2 4 1 CL .100 (2.54) .025 (.64) .335 ± .010 (8.50) +.001 .083 –.002 Dia. Sq. Contact (2.1) Trifurcated Pin (4 places) 50 Places .16 (4.06) .100 Typ. (2.54) "D" ± .010 .051 (1.30) .045 Min. Typ. (1.14) "C" ± .010 3 .834 ± .010 (21.18) .040 Ref. (1.02) "B" Ref. "A" ± .010 No.
56 Hawk 2XL Product Manual, Rev. B 3.650±.005 .346 .155 1.650 .270 .3937 .050 .600 .0787 .022 .200 .020 .047 .60 (15.24) .42 ref (10.67) .519 (13.18) .100 (2.54) 1.816 (46.13) .315 (8.00) Position 1 Pos. 1 .20 typ (5.08) 32 4 .218 (5.54) .050 (1.27) Pos. 35 1.650 (41.91) .0787 (2.00) Pos. 68 .980 (24.89) 1.368 (37.74) .840 ± .005 (21.34) Pos. 2 .085 x 45° chamfer (2.16) typ Pos. 1 .767 (19.48) 1 .315 ± .010 (8.00) +.001 .083 –.002 dia (2.1) Trifurcated Pins (4 places) 3.
Hawk 2XL Product Manual, Rev. B * 57 Side View Section X–X 7.00 (.276) 1.52 (.060) 12.70 (.500) 2.70 (.106) End View Grounding Pins 1.32 (.052) 2.15±0.10 2 places .097±0.10 (.038±.004) 57.87 0 (2.278) –0.15 + .000 [ – .006 [ 0.15 M Y M –Y– CL of Datum Y Front View Pin 1 * 62.15 ± 0.15 (2.447) (± .005) 0.15 M Y M * Contacts are recessed in notches in center piece. Insert mating I/O connector Housing X Top View Contact 0.50 (.020) 0.3 M Y M (.012) 1.27 (.
58 Table 11a: Hawk 2XL Product Manual, Rev.
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60 Table 11c: Hawk 2XL Product Manual, Rev.
Hawk 2XL Product Manual, Rev. B 61 Notes [ ] for Tables 11a, 11b, and 11c. [1] [2] See Section 9.6.4.4 for detailed electrical characteristics of these signals. The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flat ribbon cable. Other cables types may be used to implement equivalent contact assignments. [3] Connector contacts are on 0.050 inch (1.27 mm) centers.
62 Hawk 2XL Product Manual, Rev. B 9.6.4.4 Single-ended drivers/receivers For “N” models which use single-ended drivers and receivers, typical circuits are shown in Figure 12. Terminator circuits (Note [1]) are to be enabled (model N) only when the disc drive is first or last in the daisy-chain. Transmitter characteristics Single-ended drives use an ANSI SCSI compatible open collector single-ended driver. This driver is capable of sinking a current of 48 mA with a low level output voltage of 0.4 volt.
Hawk 2XL Product Manual, Rev. B 9.7 63 Terminator requirements Internal disc drive I/O termination (provided only in model “N” and “W” drives) consists of active circuits in an LSI module that is permanently mounted on the PCB. All single initiator/single target (non-daisy-chain) applications require that the Initiator and disc drive be terminated. Daisy-chain applications require that only the units at each end of the daisy-chain be terminated. All other peripherals on the chain must not be terminated.
64 Hawk 2XL Product Manual, Rev. B 9.9 Disc drive SCSI timing Table 12: Disc drive SCSI timing* Description Waveform Symbol [1] Waveform Table [1] Typical Timing Target Select Time (no Arbitration) T00 N/A <1 µs Target Select Time (with Arbitration) T01 4.5-1,2 1.93 µs Target Select to Command T02 4.5-1 3.77 µs Target Select to MSG Out T03 4.5-2 1.57 µs Identify MSG to Command T04 4.5-3 3.36 µs Command to Status T05 4.5-5 Command Dependent Command to Data (para.
Hawk 2XL Product Manual, Rev. B 65 Description Waveform Symbol [1] Waveform Table [1] Typical Timing Data Out Byte Transfer (parameter) T25 4.5-13 0.04 µs Next Data In Byte Access (parameter) T26 4.5-12 0.12 µs Next Data Out Byte Access (parameter) T27 4.5-13 0.12 µs Data In Byte Transfer (media) [2] T28 4.5-12 0.04 µs Data Out Byte Transfer (media) [2] T29 4.5-13 0.04 µs Next Data In Byte access (media [2] T30 4.5-12 0.12 µs Next Data Out Byte access (media [2] T31 4.
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Hawk 2XL Product Manual, Rev. B 10.0 67 Technical support service Seagate Technology provides technical support literature and diagnostic utilities to Authorized Distributors. Please contact your dealer for technical support and installation troubleshooting. Product Technical Support is available for all Seagate products by calling the SeaFAX , SeaFONE , SeaTDD or SeaBOARD services. These are toll calls.
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70 Hawk 2XL Product Manual, Rev.
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72 Hawk 2XL Product Manual, Rev. B maximum operating current 19 maximum starting current 19 ME jumper 37 mean time between failure.
Hawk 2XL Product Manual, Rev. B prefetch of contiguous blocks 13 prefetch operation 11, 12 prefetch segmented cache control 11 preventive maintenance 15, 16 printed circuit board.
74 Hawk 2XL Product Manual, Rev.
Hawk 2XL Product Manual, Rev. B Z zoned bit recording (ZBR) 7 Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 77767489 , Revision B, Printed in USA Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.
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