Seagate ST3620N Product Manual
Seagate ST3620N Product Manual

Seagate ST3620N Product Manual

Hawk 1lp family
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Hawk 1LP Family:
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ST31200N/ND/NC
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ST3620N/NC
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Product Manual, Volume 1
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Summary of Contents for Seagate ST3620N

  • Page 1 ............ST3620N/NC .
  • Page 3 ............ST3620N/NC .
  • 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 1LP Family SCSI-2 (Volume 1), Rev. D _____________________________________________________________________________________ Revision Status Summary Sheet Revision Authority Date Writer/Eng. Sheets affected A Issue 2/10/94 D. Ashby v thru viii, 1 through 68 PLD: 85297 5/18/94 Jim Bently/ v, 14 and 20 Larry Wilcox PLD: 85341 6/16/94...
  • Page 6: Table Of Contents

    Product Manual - Hawk 1LP Family 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 Features............................5 Performance ........................5 Reliability ........................
  • Page 7 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Heat/power dissipation ....................22 Environmental limits ......................22 7.4.1 Temperature ...................... 22 7.4.2 Relative humidity ....................23 7.4.3 Effective altitude (sea level ref) ................24 7.4.4 Shock and vibration ................... 24 7.4.5 Air cleanliness ....................
  • Page 8 Options ............................64 12.1 Front Panel ........................64 12.2 Single unit shipping ppack ....................64 13.0 Accessories ..........................65 13.1 Front panel kit ......................... 65 13.2 Installation manual ......................65 14.0 Seagate support services ......................66 Seagate peripheral family ........................67...
  • Page 9: Scope

    Seagate Technology, Inc. Hawk 1LP Family Disc Drive. This high capacity, high performance member of the Seagate 1 inch high 3.5 inch rigid disc family is a companion product to the ST11200 disc drive. Performance information is given in Section 5. The Hawk 1LP Family drive interface is defined for functional compatibility to be a subset of the Seagate SCSI Interface Manual 77738479, and the ANSI SCSI-2 and SCSI-3 standards.
  • Page 10: Applicable Standards And Reference Documentation

    Standards The Hawk 1LP Family complies with Seagate standards as noted in the appropriate sections of this Manual and the Seagate SCSI Interface Manual, P/N 77738479 (Vol. 2, Version 2). The Hawk 1LP Family is a UL Recognized component per UL 1950 and a CSA Certified component per CAN/ CSA-C22.2 No.
  • Page 11: General Description

    Hawk 1LP 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 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev A ______________________________________________________________________________________ ST31200N/ND PCB ST31200NC PCB Figure 3.0-1. Hawk 1LP family drive...
  • Page 13: Features

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Features The Hawk 1LP Family 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

    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 formatted capacities. Spare Sectors or Cylinders ST31200N/ND/NC ST3620N/NC Reserved for reallocation 512[1] 1024[1] 512[1]...
  • Page 15: Installation

    • If the drive is the only device on the bus, attach it to the end of the SCSI bus cable. Permanently installed terminators must be enabled on the drive for ST31200N/ST3620N and ST31200NC/ST3620NC models using jumper plug TE. On ST31200ND models, external terminators must be provided by the user, systems integrator or host equipment manufacturer.
  • Page 16: Performance Characteristics

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Performance characteristics Internal drive characteristics (transparent to user) ST31200N/ND/NC ST3620N/NC Drive Capacity 1258.8 651.8 MByte (UNF) Read/Write Heads (Max) Bytes/Track 51803.0 48283 Bytes (Avg) Bytes/Surface 139.8 130.4 Mbytes (UNF)
  • Page 17: Format Drive Command Execution Time

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 5.2.2 Format drive command execution time (minutes) [1] Maximum (with verify) Maximum (no verify) *[ ] Notes are listed in Section 5.3.1. 5.2.3 Read data command execution time [4] 512 byte sector size, without disconnect and with read look ahead cache disabled).
  • Page 18: Generalized Performance Characteristics

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Generalized performance characteristics Minimum Sector Interleave 1 to 1 Data Buffer To/From Disc Media Data transfer rate (< 1 sector) - 512 Byte Sector Min. 3.35 MByte/sec Avg. 4.59 MByte/sec Max.
  • Page 19: Start/Stop Time

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 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: Prefetch/Multi Segmented Cache Control

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _______________________________________________________________________________________ Prefetch/multi segmented cache control The drive provides prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. “Cache” as used herein refers to the drive buffer storage space when it is used in “cache”...
  • Page 21: Prefetch Operation

    (if enabled), even when cache operation is disabled (see section 5.5.2). For the ST31200N/ND and ST3620N/ND drives the number of segments may be selected using the Mode Select command, but the size can not be directly selected. Size is selected only as a by-product of selecting the segment number specification.
  • Page 22: Caching Write Data

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. B ______________________________________________________________________________________ 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 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _________________________________________________________________________________________ Sync Interface REFIND + Bottom side of PCB Master Sync Source Spindle Control Host (or other drive) DLYIND+ Drive 1 SCSI Bus System Spindle Interface Control Drive 2 Spindle Control Drive n...
  • Page 24 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ REFIND + 0.5 usec min. 500 usec max. T = 0.0111 second (+/- 1.0% max); +/- 10 usec cycle to cycle variance; Figure 5.7-2. Synchronized reference signal characteristics SCSI Interface Factors The Rotational Position Locking (RPL) field in byte 17 (bits 0 and 1) of the Rigid Disc Drive Geometry mode parameters page (page 04h) is used for enabling/disabling spindle synchronization mode*.
  • Page 25: Reliability Specifications

    Product Manual - Hawk 1LP Family 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, and environmental requirements. Seek Errors Less than 1 in 10 seeks Read Error Rates [1] Unrecovered Data...
  • Page 26: Write Errors

    Product Manual - Hawk 1LP Family 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 27: 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 sub-assemblies) 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 28: Physical/Electrical Specifications

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. B ________________________________________________________________________________________ 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. The single ended power requirements includes the internal disc drive SCSI I/O termination.
  • Page 29: Power Sequencing

    Product Manual - Hawk 1LP Family 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 30: Heat/Power Dissipation

    [3] Ambient temperature measured at the side of the drive 0.25" (6.4 mm) from the case. Air flow is 3.5 cfm, min. b. 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 31: Relative Humidity

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D ______________________________________________________________________________________ Model ST31200N PCB U2Ø U1Ø Model ST31200NC PCB Model ST31200ND PCB U2Ø U2Ø U1Ø Bottom side of PCB Figure 7.4.1-1. Locations of components listed in table 7.4.1-1. 7.4.2 Relative humidity The values below assume that no condensation on the drive occurs.
  • Page 32: 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 33 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ________________________________________________________________________________________ Figure 7.4.4-1. Recommended mounting...
  • Page 34: Air Cleanliness

    Product Manual - Hawk 1LP Family 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 @ 0.040 inches (1.03 mm) displacement 22-400 Hz @ 1.0 g Vibration may be applied in the X, Y, or Z axis.
  • Page 35: Mechanical Specifications

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 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 Figure 7.6-1 for detailed mounting configuration dimensions.
  • Page 36 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 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 37: Drive Orientation

    Product Manual - Hawk 1LP Family 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 38: Media Characteristics

    Product Manual - Hawk 1LP Family 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 39: Defect And Error Management

    Product Manual - Hawk 1LP Family 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 40: Option/Configuration Headers

    SCSI ID = 7 Enable Terminators Sync Spindle Term. Power from Drive Remote Term. Power to SCSI Bus Term. Power from SCSI Bus Position A CATH Figure 10.1-1. ID and option select header for Models ST31200N/ND and ST3620N...
  • Page 41 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Pin 1 Drive with HDA up, Drive Front PCB down, viewed from front 80 Pin SCSI I/O Connector Pin 1 A 2 A 1 A 0 Pin 1 SCSI ID = 0 Jumper Positions...
  • Page 42 Product Manual - Hawk 1LP Family 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, J5 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 43: Synchronized Spindles Interface

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ continued from previous page TP Position A 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 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 10.2.1.1 Drivers and receivers Figure 10.2.1-1 shows a diagram of the driver/receiver circuit. The driver circuits have the following electrical specifications. Negated (False): 0.0 V to +0.4 V @ I = - 48 mA (max). Asserted (True): +2.24 V to +5.25 V @ I = +250 uA.
  • Page 45: Grounding

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 10.2.1.3 Physical interface The dimensions of the connector (J6) mounted on the Main PCB to interconnect the drives is shown in Figure 10.2.1-2. It is a 12 pin, 6 jumper position gold header type connector. Only pins 5 and 6 are used for connecting the Reference Index signal cable, as shown in Figure 10.2.1-2.
  • Page 46: 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 1LP Family drives version of the SCSI implementation described in the 77738479 document.
  • Page 47: Scsi Interface Commands Supported

    Product Manual - Hawk 1LP Family 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 1LP Family drives can be changed back and forth between SCSI-1, SCSI-2/SCSI-3 modes using the Change Definition Command.
  • Page 48 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _________________________________________________________________________________________ continued from previous page Com’d’ Supported by: Code SCSI-1 SCSI-2/SCSI-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...
  • Page 49: Inquiry Data

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.3.1 Inquiry data 11.3.1.1 Standard Inquiry data Table 11.3.1-1 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. Table 11.3.1-1.
  • Page 50: Mode Sense Data

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.3.2 Mode Sense data 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 51 Product Manual - Hawk 1LP Family 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 implementation (see SCSI Interface Product Manual, P/N 77738479). Definitions: = Default value.
  • Page 52 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-2. Mode sense data, ST31200N/ND/NC default values (SCSI-2 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 9F 00 00 08 Sense 00 00 00 00 00 00 02 00 Data...
  • Page 53 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-3. Mode sense data, ST3620N/NC 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...
  • Page 54 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-4. Mode sense data, ST3620N/NC default values (SCSI-2 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...
  • Page 55: Scsi Bus Conditions And Miscellaneous Features Supported

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.4 SCSI bus conditions and miscellaneous features supported Asynchronous 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 phase sequence. Other miscellaneous operating features supported are also listed here.
  • Page 56: Synchronous Data Transfer

    SCSI I/O signals and the DC power all together in the 80 pin I/O connector. See Figure 11.6.3-1b and Table 11.6.3-1c. 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 57 + 5V ret + 5V DC Power Pin 1 Connector Pin 1 SCSI I/O Connector Figure 11.6-1a. ST31200N/ND and ST3620N drives physical interface (50 pin SCSI I/O connector) 80 Pin SCSI I/O and Power Connector Pin 1 Terminator Module Figure 11.6-1b. ST31200NC and ST3620NC drives physical interface (80 pin SCSI I/O and DC power connector)
  • Page 58: Dc Cable And Connector

    11.6.1 DC cable and connector For models ST31200N/ND and ST3620N, the drive receives DC power through a 4 pin connector (see Figure 11.6-1a for pin assignment) 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 59: Mating Connector Requirements

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C _____________________________________________________________________________________ 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 60 Jumper plug part number for J2 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 number for J2 jumper: Molex 52747-0211 (Seagate P/N 77679052)
  • Page 61 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ .370 ± .010 (9.398) Ref. (15.24) (10.67) Typ. (5.08) .065 x 45° Chamfer Typ. (1.65) Pin 1 .037 Ref. Typ. Typ. (.94) (6.60) .335 ± .010 (8.50) .100 (2.54) .025 +.001...
  • Page 62 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Side View 7.00 (.276) 1.52 (.060) 2.70 12.70 (.106) (.500) 1.32 (.052) Section X–X 57.87 (2.278) –0.15 + .000 – .006 0.15 –Y– Front View Pin 1 62.15 ±...
  • Page 63 Product Manual - Hawk 1LP Family 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 VIEW B - T indicates termination required...
  • Page 64 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.6.3-1b. Differential cable pin assignments (Nonshielded connector) +Signal Name* Pin Number -Signal Name* SHIELD GND GROUND +DB(0) -DB(0) +DB(1) -DB(1) +DB(2) -DB(2) +DB(3) -DB(3) +DB(4) -DB(4) +DB(5) -DB(5) +DB(6) -DB(6)
  • Page 65 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.6.3-1c. Single ended, 80 pin cable pin assignments (Non-shielded connector) Signal Pin number Signal Pin number +12 V 12 V GND +12 V 12 V GND +12 V 12 V GND +12 V 12 V GND...
  • Page 66: Electrical Description

    [1] Part of active terminator circuits. Non-removable LSI terminators, enabled in the drive (models ST31200N/ NC and ST3620N only) with jumper plug TE when it is first of last in the daisychain. Interface signals levels and logical sense at the drive I/O connector are defined as follows:...
  • Page 67 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.6.4.2 Differential drivers/receivers Differential drivers and receivers are used by the model ST31200ND. 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.
  • Page 68 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 69 Figure 11.6-1 and 10.1-1. The drive can provide power both to its own terminators and to the SCSI Bus terminator power line (Pin 26) if both "TP" jumpers are on (models ST31200N/ND and ST3620N only). SCSI devices providing terminator power (TERMPWR)* shall have the following characteristics: V TERM = 4.50 V to 5.25 V...
  • Page 70: Disc Drive Timing

    Product Manual - Hawk 1LP Family 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 250 µs Target Select Time (with Arbitration) 4.5-1,2 2.34 µs...
  • Page 71 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ continued from previous page Waveform Waveform Description Symbol [1] Table [1] Typical Max. Asynchronous Data Transfer Characteristics: (continued) Next CDB Byte Access (Byte 2 of 10) T23.10.2 4.5-4 0.51 µs 0.60 µs Next CDB Byte Access (Byte 3 of 10)
  • Page 72: Options

    Product Manual - Hawk 1LP Family 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 73: Accessories

    Product Manual - Hawk 1LP Family 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 77767453) provides basic information on the care and handling of Winchester disc peripherals in general.
  • Page 74: Seagate 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 75: Seagate Peripheral Family

    Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D _____________________________________________________________________________________ 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 Unformatted...
  • Page 76 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D _____________________________________________________________________________________ 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 77765458(I)
  • Page 78 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 77767452, Rev. D (03/95)

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