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HAWK 2LP Family:
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(Wide bus)
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ST32430W/WD/WC/DC
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ST31230W/WD/WC/DC
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Product Manual, Volume 1
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Table of Contents
Related Manuals for Seagate ST32430W
Summary of Contents for Seagate ST32430W
- Page 1 ..........ST32430W/WD/WC/DC .
- Page 3 ..........ST32430W/WD/WC/DC .
- Page 4 Other product names are registered trademarks or trademarks of their own. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology, Inc.
- Page 5 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Revision Status Summary Sheet Revision Date Writer/Eng. Sheets affected A ISSUE 2/15/95 D. Ashby v through viii, 1 through 69 Notice: Product Manual 77767480 is Volume 1 of a two Volume document with the SCSI interface information in the Volume 2 SCSI Interface Product Manual, P/N 77738479.
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Page 6: Table Of Contents
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table of Contents Scope ............................1 Applicable standards and reference documentation .............. 2 Standards ........................2 Applicable reference documents ..................2 General description ........................3 Standard Features ........................5 Performance ........................ - Page 7 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _________________________________________________________________________________________ Heat/power dissipation ....................20 Environmental limits ......................20 7.4.1 Temperature ...................... 20 7.4.2 Relative humidity ....................21 7.4.3 Effective altitude (sea level ref) ................22 7.4.4 Shock and vibration ................... 22 7.4.5 Air cleanliness ....................
- Page 8 Accessories ..........................66 13.1 Front panel kit ......................66 13.2 Additional Installation Guide copies ................66 14.0 Seagate Technical support services ..................67 Seagate peripheral family ........................68 Tables Table 7.2-1 DC power requirements ..................... 18 Table 7.4.1-1 PCB and HDA temperatures ..................20 Table 11.2-1...
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Page 9: Scope
This Manual describes the Seagate Technology, Inc. Hawk 2LP family (Wide) Disc Drives. This high capacity, high performance member of the Seagate 1 inch high 3.5 inch rigid disc family is a next generation product from the ST31200 disc drive. Performance information is given in Section 5. The Hawk 2LP family (Wide) model drives interface is defined for functional compatibility to be a subset of the Seagate SCSI Interface Manual 77738479, and the ANSI SCSI-2/SCSI-3 standards. -
Page 10: Applicable Standards And Reference Documentation
Standards The Hawk 2LP Family (Wide) complies with Seagate standards as noted in the appropriate sections of this Manual and the Seagate SCSI Interface Manual, P/N 77738479 (Volume 2, Version 2). The Hawk 2LP Family (Wide) is a UL Recognized component per UL 1950 and a CSA Certified component per CAN/CSA-C22.2 No. -
Page 11: General Description
Hawk 2LP (Wide) Family of drives, and the SCSI Interface Product Manual P/N 77738479 (Vol. 2, Version 2) which describes the general interface characteristics of this and other families of Seagate 3.5-inch drives. The drive interface supports multiple initiators, disconnect/reconnect, self configuring host software and automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets (logical block addressing is used). -
Page 12: Figure 3.0-1 Hawk 2Lp Family (Wide) Drive
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ “W/WD” Models PCB “WC/DC” Models PCB Figure 3.0-1. Hawk 2LP family (Wide) drive... -
Page 13: Standard Features
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Features The Hawk 2LP Family (Wide) has the following standard features: • Integrated SCSI Controller • Single Ended and Differential SCSI drivers and receivers • Asynchronous and Synchronous data transfer protocol •... -
Page 14: Unformatted And Formatted Capacities
[2] All spare sectors are on one track. [3] Spare cylinders are on the two inner tracks. The standard OEM model is as follows: Formatted Data Block Size Unformatted 512 Byte/Sector ST32430W/WD/WC/DC 2.14 GB* 2.59 GB ST31230W/WD/WC/DC 1.06 GB** 1.28 GB * Sparing equivalent to eight spare sectors per cylinder (all spare sectors are on one track), two spare cylinders/unit. -
Page 15: Standard Installation
• Installation instructions are provided by host system documentation or with any additionally purchased drive installation software. If necessary see section 14.0 for Seagate support services telephone numbers. • The Manufacturers installed labels must not be removed from the drive or covered with additional labels, as they contain information required when servicing the product. -
Page 16: Performance Characteristics
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Performance characteristics Internal drive characteristics (transparent to user) ST32430 ST31230 Drive Capacity 2.59 1.28 GByte (UNF)* Read/Write Heads Bytes/Track 72000 64242 Bytes (Avg)* Bytes/Surface 287.7 255.6 Mbytes (UNF) Tracks/Surface, Total 3992 3992... -
Page 17: Format Drive Command Execution Time
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 5.2.2 Format drive command execution time (minutes) [1]* ST32430 ST31230 Maximum (with verify) Maximum (no verify) 5.2.3 Read data command execution time [4] (512 byte sector size, without disconnect and with read look ahead cache disabled.) Latency time is included. -
Page 18: Generalized Performance Characteristics
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Generalized performance characteristics Minimum Sector Interleave (All Hawk 2LP models) 1 to 1 Data transfer rate (< 1 sector) - 512 Byte Sector, Data Buffer To/From Disc Media: ST32430 ST31230 Min. -
Page 19: Notes For Sections 5.2 And 5.3
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 5.3.1 Notes for sections 5.2 and 5.3. [1] 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). [2] Maximum times are specified over the worst case conditions of temperature, voltage margins and drive orientation. -
Page 20: Start/Stop Time
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Start/stop time After DC power has been applied, the drive becomes ready within 20 seconds (15 seconds typical) if the Motor Start Option is disabled (i.e. the motor starts as soon as the power has been applied). During this time the drive responds to some commands over the SCSI interface* in less than 3 seconds. -
Page 21: Prefetch Operation
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Case B - A Read command requests data, the first LB of which is not in any segment of the cache: 1. The drive fetches the requested LB’s from the disc and transfers them into a segment, and from there to the host in accordance with the disconnect/reconnect specification referred to in case A. -
Page 22: Caching Write Data
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored in one or more segments while the drive performs the write command. Write caching is enabled along with read caching. -
Page 23: Reliability Specifications
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 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 7.6.3). Seek Errors Less than 1 in 10 seeks Read Error Rates [1]... -
Page 24: Write Errors
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 6.1.3 Write errors Write errors can occur as a result of media defects, environmental interference, or equipment malfunction. Therefore, write errors are not predictable as a function of the number of bits passed. If an unrecoverable write error occurs because of an equipment malfunction in the drive, the error is classified as a failure affecting MTBF. -
Page 25: Service Philosophy
6.2.7 Product warranty Beginning on the date of shipment to customer and continuing for a period of five years, Seagate warrants that each product (including components and subassemblies) or spare part that fails to function properly under normal use due to defect in materials on workmanship or due to nonconformance to the applicable specifications will be repaired or replaced, at Seagate’s option and at no charge to customer, if returned by... -
Page 26: Physical/Electrical Specifications
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Physical/electrical specifications AC power requirements: None 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. -
Page 27: Power Sequencing
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 7.2.2 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. -
Page 28: Heat/Power Dissipation
Non-Operating -40° to 158°F (-40° to 70°C) package ambient with a maximum gradient of 45°F (25°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. -
Page 29: Relative Humidity
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Model “WC” Single Ended PCB [1] U2Ø Model “DC” Differential I/O PCB [1] [2] U1Ø U1Ø Model “W” Single Ended I/O PCB [1] Model “WD” Differential I/O PCB [1] U2Ø... -
Page 30: Effective Altitude (Sea Level Ref)
The drive as packaged in a single or multiple drive pack of gross weight 20 pounds (8.95 kg) or less by Seagate for general freight shipment shall withstand drop test from heights listed below against a concrete floor or equivalent. For additional details refer to specifications 30190-001 (under 100 lbs) or 30191-001 (over 100 lbs). -
Page 31: Figure 7.4.4-1 Recommended Mounting
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1) Rev. A _____________________________________________________________________________________ Figure 7.4.4-1. Recommended mounting... -
Page 32: Air Cleanliness
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 7.4.4.2 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. -
Page 33: Mechanical Specifications
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 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. Figure 7.6-1b does not show front panel, because its expected use would not require one. -
Page 34: Figure 7.6-1B Mounting Configuration Dimension (80 Pin I/O Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. 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. -
Page 35: Drive Orientation
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 7.6.1 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. -
Page 36: Media Characteristics
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Media characteristics Media description The media used on the drive has a diameter of approximately 3.7 inches (95 mm). The aluminum substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. -
Page 37: Defect And Error Management
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 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). -
Page 38: Option/Configuration Headers
J2, J1-auxiliary and J6. Suggested part number for the unusual J2 jumper is Molex 52747-0211 (Seagate P/N 77679052). A bag of both types of jumper plugs used is shipped with standard OEM drives. -
Page 39: Figure 10.1-1B "W/Wd" Models Drive Id And Option Select Header J1-Auxiliary (Rear Header Details)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Drive HDA (rear view, PCB facing downward) J1-Auxiliary Pin 1 +5V Ground Pin 1A J1-DC Power Pin 12A SCSI I/O Connector SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4... -
Page 40: Figure 10.1-1C Drive Configurator For Hawk 2Lp Family "Wc" And "Dc" Model Drives
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Drive with HDA up, Pin 1 PCB down, viewed from front Pin 1 Drive Front 80 Pin SCSI I/O Connector Ground Reserved A 2 A 1 A 0 SCSI ID = 0 Pin 1 SCSI ID = 1... - Page 41 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Notes for Figure 10.1-1. [1] Notes explaining the functions of the various jumpers on jumper header connectors J2, J1-Auxiliary and J6 are given below in left to right order of jumper position. The term “default” means as standard OEM units are configured when shipped from factory.
- Page 42 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Jumper Installation Jumper Function Description (Applies only to “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. Terminator circuits not connected to I/O lines.
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Page 43: Grounding
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ continued from previous page TP Position A (Applies to “W” models only) This horizontally positioned jumper across the two TP positions nearest PCB edge, connects terminator power from SCSI bus I/O pin 26 to the drive’s internal terminators (for single-ended I/O only). -
Page 44: Interface Requirement
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 2LP Family (Wide) drive's version of the SCSI implementation described in the 77738479 document. -
Page 45: Scsi Interface Commands Supported
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 11.3 SCSI interface commands supported Table 11.3-1 following lists the SCSI interface commands that are supported in the SCSI-1, SCSI-2 and SCSI- 3 modes of the drive. Hawk 2LP Family (Wide) drives can be changed back and forth between SCSI-1 and SCSI-2/SCSI-3 modes using the Change Definition Command. - Page 46 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ continued from previous page Com’d’ Supported by: Code SCSI-1 SCSI-2/3 Command Name Start unit/stop unit (spindle ceases rotating) Receive diagnostic results Supported diagnostics pages Translate page Send diagnostics page Supported diagnostics pages Translate page Read capacity...
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Page 47: Inquiry Data
Eight ASCII digits representing the eight digits of the product serial number. Four ASCII digits representing the firmware distribution diskette serial number. Bytes 18 through 24 will reflect model of drive. Shown here are hex values for Model ST32430W. Values for ST31230W are 33 31 32 33 30 57. -
Page 48: Mode Sense Data
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.3.2 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. -
Page 49: Table 11.3.2-1A Mode Sense Data, St32430 Models Default Values (Scsi-1 Implementation)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ The following tables list the values of the data bytes returned by the drive in response to the Mode Sense command pages for SCSI-1 and SCSI-2/SCSI-3 implementation (see SCSI Interface Product Manual, P/N 77738479). -
Page 50: Table 11.3.2-1B Mode Sense Data, St31230 Models Default Values (Scsi-1 Implementation)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-1b. Mode sense data, ST31230 models default values (SCSI-1 implementation) Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode Sense 63 00 10 08 Data... -
Page 51: Table 11.3.2-2A Mode Sense Data, St32430 Models Default Values (Scsi-2/3 Implementation)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ____________________________________________________________________________________________ Table 11.3.2-2a. Mode sense data, ST32430 models default values (SCSI-2/3 implementation) Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode 87 00 10 08 Sense 00 00 00 00 00 00 02 00 Data... -
Page 52: Table 11.3.2-1B Mode Sense Data, St31230 Models Default Values (Scsi-2/3 Implementation)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ____________________________________________________________________________________________ Table 11.3.2-2b. Mode sense data, ST31230 models default values (SCSI-2/3 implementation) Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode 87 00 10 08 Sense 00 00 00 00 00 00 02 00 Data... -
Page 53: Scsi Bus Conditions And Miscellaneous Features Supported
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 11.4 SCSI bus conditions and miscellaneous features supported SCSI bus conditions supported by the drive are listed in Table 11.4-1. 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. -
Page 54: Synchronous Data Transfer
1b and Tables 11.6.3-1c and 11.6.3-1d. Details of the physical, electrical and logical characteristics are given in paragraphs following, while the SCSI operational aspects of Seagate drive interfaces are given in the Seagate SCSI Interface Product Manual, P/N 77738479. __________... -
Page 55: Figure 11.6-1A Model "W/Wd" Drive Physical Interface (68 Pin J1 Scsi I/O Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Power +12V +12V ret + 5V ret + 5V J1-Auxiliary Pin 1 Pin 1A J1-DC Power J1-DC Power J1-Auxiliary Pin 1P Pin 1A Pin 1 68 Pin SCSI I/O Connector Figure 11.6-1a. -
Page 56: Dc Cable And Connector
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 11.6.1 DC cable and connector For Hawk 2LP W/WD models, the drive receives DC power through a 4 pin connector (see Figure 11.6-1a and 11.6.3-1b for pin assignments) mounted at the rear of the main PCB. Recommended part numbers of the mating connector are listed below, but equivalent parts may be used (see Table 11.6-1). -
Page 57: Mating Connector Requirements
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 11.6.2.2.3 General cable characteristics In general, cables having the characteristic impedance’s given in 11.6.2.2.1 and 11.6.2.2.2 are not available; however, impedance’s that are somewhat lower are satisfactory. A characteristic impedance of 100 ohm ±10% is recommended for unshielded flat or twisted pair ribbon cable. - Page 58 Option select header connector J2 on the PCB (see Figure 10.1-1) uses an unusual type of jumper plug so its part number is given here for reference. Suggested part no. for J2 jumper: Molex 52747-0211 (Seagate P/N 77679052) A bag of both types of jumpers used with the drive is included with every standard OEM drive.
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Page 59: Figure 11.6.3-1A Nonshielded 68 Pin Scsi Device Connector, W/Wd Models
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Position 1 Position 1 Position 1 (15.24) (10.67) (5.08) .065 .100 1.816 x 45° chamfer typ (1.65) (2.54) (46.13) Position 1 Position 1 Position 1 .315 ± .010 (8.00) .050 .0787... -
Page 60: Figure 11.6.3-1B Nonshielded 80 Pin Scsi Connector, Used On Wc And Dc Models
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Side View Section X–X 7.00 (.276) 1.52 (.060) 2.70 12.70 End View (.106) (.500) 1.32 Grounding (.052) Pins 2.15±0.10 .097±0.10 (.038±.004) 2 places 57.87 (2.278) –0.15 + .000 –... -
Page 61: Figure 11.6.3-2 Interface Cabling
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ SCSI Device * * * Host Adapter/Initiator 1 thru 8 SCSI Devices Disc Drive or Disc Drive or Disc Drive or Other SCSI Other SCSI Other SCSI Device Device Device... -
Page 62: Table 11.6.3-1A "W" Models Single Ended Cable Pin Assignments (Nonshielded Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A __________________________________________________________________________________________ Note. The minus sign next to the signals indicates asserted state is the low voltage of the two levels used for logic signals. Table 11.6.3-1a. "W" models single ended cable pin assignments (nonshielded connector) Connector Cable Connector... -
Page 63: Table 11.6.3-1B "Wd" Models Differential Cable Pin Assignments (Nonshielded Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A __________________________________________________________________________________________ Table 11.6.3-1b. "WD" models differential cable pin assignments (Nonshielded connector) Note. The minus sign next to the signals indicates asserted state is the low voltage of the two levels used for logic signals. -
Page 64: Table 11.6.3-1C "Wc" Models Single Ended, 80 Pin Cable Pin Assignments (Nonshielded Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A __________________________________________________________________________________________ Table 11.6.3-1c. "WC" models single ended, 80 pin cable pin assignments (Nonshielded connector) Connector Connector Signal Contact Cable Contact Signal Name [1] Number [3] Conductor [2] Number [3] Name [1] +12 V 12 V GND... -
Page 65: Table 11.6.3-1D "Dc" Differential Models, 80 Pin Cable Pin Assignments (Nonshielded Connector)
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A __________________________________________________________________________________________ Table 11.6.3-1d. "DC" differential models, 80 pin cable pin assignments (Nonshielded connector) Connector Signal Contact Cable Signal Contact Name [1] Number [3] Conductor [2] Name [3] Number [1] +12 V 12 V GND +12 V... - Page 66 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A __________________________________________________________________________________________ Notes [ ] for Tables 11.6.3-1a, 11.6.3-1b, 11.6.3-1c and 11.6.3-1d. [1] See paragraph 11.6.4.1 for detailed electrical characteristics of these signals. [2] The conductor number refers to the conductor position when using 0.025-inch centerline flat ribbon cable.
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Page 67: Electrical Description
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.6.4 Electrical description Model W/WC drives use single ended interface signals. These signals must be terminated with 110 ohm active termination circuits at each end of the total cable. See Figure 10.1-1a. On "W" models, the terminators are enabled (or disabled) by installing (or removing) jumper plug TE. - Page 68 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 11.6.4.2 Differential drivers/receivers Differential drivers and receivers are used by the "WD" and "DC" models. Typical circuits are shown in Figure 11.6.4-2. The drive has no provisions for terminator circuits on differential I/O drives. Differential Signals All differential interface signals consist of two lines denoted +SIGNAL and -SIGNAL.
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Page 69: Figure 11.6.4-2 Typical Differential I/O Line Transmitter/Receiver And External Terminators
See section 11.6.4.2 for signal characteristics. [4] I/O Line terminators. If SCSI device is a Seagate disc drive, terminators and a place to plug them in must be provided external to the drive by user, systems integrator or host equipment manufacturer where needed. - Page 70 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.6.4.3 Terminator requirements Internal disc drive I/O termination (provided only in single ended I/O model drives) consists of active circuits in an LSI module that is permanently mounted on the PCB. All single initiator/single target (nondaisychain) applications require that the Initiator and disc drive be terminated.
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Page 71: Disc Drive Scsi Timing
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.7 Disc drive SCSI timing Table 11.7-1. Disc drive SCSI timing Waveform Waveform Description Symbol [1] Table [1] Typical Target Select Time (no Arbitration) <1 µs Target Select Time (with Arbitration) 4.5-1,2 1.74 µs Target Select to Command... - Page 72 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ continued from previous page Waveform Description Symbol [1] Table [1] Typical Asynchronous Data Transfer Characteristics: (continued) Next CDB Byte Access (Byte 2 of 10) T23.10.2 4.5-4 0.65 µs Next CDB Byte Access (Byte 3 of 10) T23.10.3 4.5-4...
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Page 73: Options
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 12.0 Options All options are incorporated or packaged at the manufacturing facility. 12.1 Front panel The normal front panel available is black plastic. Other panel colors may be special ordered. Each panel has a single rectangular green rectangular LED indicator lens which, when glowing, indicates the drive is selected. -
Page 74: Accessories
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ 13.0 Accessories All accessories are designed for implementation by the customer. 13.1 Front panel kit Same as 12.1 but includes all mounting hardware to support field installation. 13.2 Installation Guide The Installation Guide (P/N 77767478) is usually included with each drive shipped, but extra copies may be... -
Page 75: 14.0 Seagate Technical Support Services
8:00 AM to 5:00 PM PST, Monday through Friday. SeaBOARD service: The Seagate Technical Support Bulletin Board System (BBS) is available 24 hours a day, 7 days a week. A modem is required to access this service. Model required. (300–9600 baud, 8-N-1). This is a toll call. -
Page 76: Seagate Peripheral Family
Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Seagate Peripheral Family Listed below are some of the SEAGATE Peripheral family members. For specific information on each member, refer to the appropriate documents. Model Model Product... - Page 77 Product Manual - Hawk 2LP Family (Wide) SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ continued from previous page Model Model Product Unformatted Name Number Manual Interface Capacity (MB) ST3600 ST3500N 77738477(I) SCSI-2 ST3600N 77738477(I) SCSI-2 ST3610N/ND/NC 77738495(I) SCSI-2 635* ST3600A 77738485 AT (IDE) ST1480 ST1400N...
- Page 80 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 77767480, Rev. A (2/95) Printed in USA...