....................................................... Hawk 1LP Family: ....................................................... ST31200N/ND/NC ....................................................... ST3620N/NC ....................................................... ....................................................... Product Manual, Volume 1 .......................................................
....................................................... Hawk 1LP Family: ....................................................... ST31200N/ND/NC ....................................................... ST3620N/NC ....................................................... ....................................................... Product Manual, Volume 1 .......................................................
© 1995 Seagate Technology, Inc. All rights reserved Publication Number: 77767452, Revision D March 1995 Seagate®, Seagate Technology®, and the Seagate logo are registered trademarks of Seagate Technology, Inc. HawkTM, SeaFAXTM, SeaFoneTM, SeaTDDTM and SeaBOARDTM are trademarks of Seagate Technology, Inc. Other product names are registered trademarks or trademarks of their own. Seagate reserves the right to change, without notice, product offerings or specifications.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D v _____________________________________________________________________________________ Revision Status Summary Sheet Revision Authority A Issue Date Writer/Eng. Sheets affected 2/10/94 D. Ashby v thru viii, 1 through 68 v, 14 and 20 B PLD: 85297 5/18/94 Jim Bently/ Larry Wilcox C PLD: 85341 6/16/94 D. Ashby D PLD: 85489 03/17/95 J. Rust, J. Bentley v, 2, 6, 11, 24, 27, 28, 50 thru 52. v, 22, 23, 66, 67 and 68.
vi Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ Table of Contents 1.0 Scope .......................................................................................................................................... 1 2.0 Applicable standards and reference documentation .............................................................. 2 2.1 Standards ...........................................................
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A vii ______________________________________________________________________________________ 7.3 7.4 7.5 7.6 Heat/power dissipation .................................................................................................... 22 Environmental limits ........................................................................................................ 22 7.4.1 Temperature ......................................................................
viii Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 12.0 Options ....................................................................................................................................... 64 12.1 Front Panel ..................................................................................................................... 64 12.2 Single unit shipping ppack ......................................
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 1 ______________________________________________________________________________________ 1.0 Scope This Manual describes the Hawk 1LP family ST31200N/ND/NC and ST3620N/NC models members of the 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.
2 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C _____________________________________________________________________________________ 2.0 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 3 _____________________________________________________________________________________ 3.0 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 3.7 inch (95 mm) fixed discs.
4 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev A ______________________________________________________________________________________ ST31200N/ND PCB Figure 3.0-1.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 5 ______________________________________________________________________________________ 4.
6 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 4.3 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 7 ______________________________________________________________________________________ 4.6 Installation For option jumper locations and definitions refer to Figure 10.1-1. Drive default mode parameters are not normally needed for installation. Refer to Section 11.3.2 for default mode parameters if they are needed. • Ensure that the SCSI ID of the drive is not the same as the host adapter. Most host adapters use SCSI ID 7.
8 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 5.0 Performance characteristics 5.1 Internal drive characteristics (transparent to user) ST31200N/ND/NC ST3620N/NC 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 5.2 1258.8 9 51803.0 139.8 2700 3000 1 47.2 - 26.8 5411+ 0.5% 5.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 9 ______________________________________________________________________________________ 5.2.2 Format drive command execution time (minutes) [1] Maximum (with verify) Maximum (no verify) 25 17 *[ ] 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). Latency time is included. a.
10 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 5.3 Generalized performance characteristics Minimum Sector Interleave 1 to 1 Data Buffer To/From Disc Media Data transfer rate (< 1 sector) - 512 Byte Sector Min. Avg. Max. [4] [4] [4] 3.35 MByte/sec 4.59 MByte/sec 5.35 MByte/sec Data Buffer To/From Disc Media Data Transfer Rate (< 1 Track) - 512 Byte Sector Min. Avg. Max. [4] [4] [4] 2.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C 11 ______________________________________________________________________________________ 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.
12 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _______________________________________________________________________________________ 5.5 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” operations.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 13 ______________________________________________________________________________________ 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. 2. If the prefetch feature is enabled, refer to section 5.5.
14 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. B ______________________________________________________________________________________ 5.6 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 15 _________________________________________________________________________________________ Sync Interface Bottom side of PCB REFIND + Master Sync Source J6 Host (or other drive) 2 4 6 6 Spindle Control J1 37 [2] DLYIND+ 5 +5V R J7 Drive 1 32 SCSI Bus System Interface T J6 6 Spindle Control J1 37 [2] 5 +5V R Drive 2 J2 T 37 [2] 5 +5V R J1 [1] J6 6 Spindle Control J1 [1] Drive n T [1] Notes.
16 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ T 1 REFIND + 0 0.5 usec min. 500 usec max. T = 0.0111 second (+/- 1.0% max); +/- 10 usec cycle to cycle variance; Figure 5.7-2.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 17 ______________________________________________________________________________________ 6.0 Reliability specifications The following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, and environmental requirements.
18 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 19 _______________________________________________________________________________________ 6.2.4 Service philosophy Special equipment is required to repair the drive HDA. In order to achieve the above service life, repairs must be performed only at a properly equipped and staffed service and repair facility.
20 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. B ________________________________________________________________________________________ 7.0 Physical/electrical specifications 7.1 AC power requirements: None 7.2 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. Table 7.2-1.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 21 ______________________________________________________________________________________ 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. 7.2.3 12 V - current profile Figure 7.2.
22 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D _____________________________________________________________________________________ 7.3 Heat/power dissipation For drives with single ended interface circuits, typical operating random read power dissipation is 8.5 watts (29 BTUs per hour) of DC power average at nominal voltages. Typical power dissipation under idle conditions is 6.5 watts (22.2 BTUs per hour). 7.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D 23 ______________________________________________________________________________________ Model ST31200N PCB * U2 U17 U7 U16 HDA U8 U3 U15 Q13 U11 U1 AG AT E Q2 U4 U18 SE U2Ø U19 U1Ø U5 J1 Model ST31200NC PCB * Model ST31200ND PCB U2 U17 U2 U17 U7 U16 U7 U8 U8 U16 U3 U15 * Q13 U3 U11 U15 U11 U1 U1 U2Ø U2Ø U4 Q2 U4 U18 U5 U10 U19 U1Ø U5 J1 J1 * Bottom side of PCB Figure 7.4.1-1.
24 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 7.4.3 Effective altitude (sea level reference) a. Operating -1000 to +10,000 feet (-305 to +3048 metres) b. Non-Operating -1000 to +40,000 feet (-305 to +12,210 metres) 7.4.4 Shock and vibration Shock and vibration limits specified in this document are measured directly on the drive chassis.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 25 ________________________________________________________________________________________ SE AG AT E B1 A1 B1 B B A1 A E A X Z E1 D C D1 C1 E1 SE AG AT E D1 C1 Z Y E X D C Figure 7.4.4-1.
26 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. b.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C 27 ______________________________________________________________________________________ 7.6 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. See section 7.6.3, Drive mounting. Height: Width: Depth: Weight: 1.00 in 4.00 in 5.74 in 1.5 pounds 25.
28 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ C [3] G D [1] F E A Notes: L [5] Pin 1 B Connector Centerline J [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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 29 ______________________________________________________________________________________ 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. 7.6.
30 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 8.0 Media characteristics 8.1 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 31 ________________________________________________________________________________________ 9.0 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).
32 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 10.0 Option/configuration headers 10.1 Drive ID/option select header Figures 10.1-1 and 10.1-2 show a bottom view of the drive (PCB toward viewer) for the purpose of showing the drive ID select and configuration option select jumper connectors.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev.
34 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. “Off” means no jumper is installed; “On” means a jumper is installed.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 35 ______________________________________________________________________________________ continued from previous page TP Position A On 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). Off See above explanations for TP jumpers.
36 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): Asserted (True): 0.0 V to +0.4 V @ I = - 48 mA (max). +2.24 V to +5.25 V @ I = +250 uA. Main PCB Driver Receiver 2.0K Ohm * +5V J1 - 37 [1] REFIND + J6 - 6 J6 - 5 GND Note.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 37 ______________________________________________________________________________________ 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. Pin 6 is REFIND+ and Pin 5 is ground. .485 Max. .
38 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _________________________________________________________________________________________ 11.0 Interface requirements 11.1 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 39 ______________________________________________________________________________________ 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.
40 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 41 ______________________________________________________________________________________ 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.
42 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 43 ______________________________________________________________________________________ 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: DEF CHG = Default value. Standard drives are shipped configured this way.
44 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-2.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 45 _____________________________________________________________________________________ Table 11.3.2-3.
46 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.3.2-4.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 47 ______________________________________________________________________________________ 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. Table 11.4-1.
48 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.5 Synchronous data transfer 11.5.1 Synchronous data transfer periods supported Table 11.5-1 and 11.5-2 list 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.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 49 ______________________________________________________________________________________ Pin 1 2 3 4 Power +12V +12V ret + 5V ret + 5V J1 4 3 2 1 DC Power Connector Pin 1 Pin 1 J2 J1 SCSI I/O Connector J5 J6 J4 Figure 11.6-1a. ST31200N/ND and ST3620N drives physical interface (50 pin SCSI I/O connector) J2 80 Pin SCSI I/O and Power Connector Pin 1 U5 Terminator Module J4 J6 Figure 11.6-1b.
50 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C ______________________________________________________________________________________ 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). Table 11.6.1-1.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C 51 _____________________________________________________________________________________ 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.
52 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. C _____________________________________________________________________________________ 11.6.3.2 Mating connectors for model ST31200NC/ST3620NC The nonshielded connector shall be an 80 conductor connector consisting of two rows of 40 contacts with adjacent contacts 50 (1.27 mm) mils apart.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 53 _____________________________________________________________________________________ .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.
54 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ * Side View 7.00 (.276) 1.52 (.060) 2.70 (.106) 12.70 (.500) 1.32 (.052) Section X–X 57.87 0 (2.278) –0.15 + .000 – .006 [ 0.15 M Y [ M –Y– Front View Pin 1 * 62.15 ± 0.15 (2.447) (± .005) 0.15 M Y M Housing X Insert cable connector here Top View 1.27 (.05) Typ PCB Contacts 0.50 (.020) 0.3 (.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 55 ________________________________________________________________________________________ SCSI Device Host Adapter/Initiator *** T * 1 thru 8 SCSI Devices ** Disc Drive or Other SCSI Device ** Disc Drive or Other SCSI Device * T Disc Drive or Other SCSI Device VIEW B - T indicates termination required Total interface cable length must not exceed that specified in paragraph 11.6.2.2. (including host adapter/initiator).
56 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A _____________________________________________________________________________________ Table 11.6.3-1b.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 57 _____________________________________________________________________________________ Table 11.6.3-1c.
58 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ______________________________________________________________________________________ 11.6.4 Electrical description Model ST31200N/NC and ST3620N/NC drive uses single ended interface signals. These signals must be terminated with 110 ohm active termination circuits at each end of the total cable. On model ST31200N/NC and ST3620N/NC only, the terminators are enabled (or disabled) by installing (or removing) jumper plug TE. See Figure 10.1-1.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 59 ______________________________________________________________________________________ 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.
60 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A ________________________________________________________________________________________ +5V Term (5) Power +5V 5.6K TE Transmit/Receive Enable (1) LSI RE XCVR DIFFSENS (6) Disable 330 Ohm (3) Twisted or Flat Cable Pair 1 Transmit or Receive Signal (2) 150 Ohm 1 R (4) 2 330 Ohm (7) SCSI Device at Beginning of I/O Cable (usually Host Adaptor/Initiator) +5V Term (5) Power +5V 5.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 61 _____________________________________________________________________________________ 11.6.4.3 Terminator requirements Drive I/O termination is provided internally only in single ended I/O model ST31200N/NC and ST3620N/NC drives. All single initiator/single target (nondaisychain) applications require that the Initiator and disc drive be terminated. Daisychain applications require that only the units at each end of the daisychain be terminated.
62 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 Description Symbol [1] Target Select Time (no Arbitration) T00 Target Select Time (with Arbitration) T01 Target Select to Command T02 Target Select to MSG Out T03 Identify MSG to Command T04 Command to Status T05 Command to Data (para. In) T06 Command to Data (para.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 63 ______________________________________________________________________________________ continued from previous page Description Symbol [1] Asynchronous Data Transfer Characteristics: (continued) Next CDB Byte Access (Byte 2 of 10) T23.10.2 Next CDB Byte Access (Byte 3 of 10) T23.10.3 Next CDB Byte Access (Byte 4 of 10) T23.10.4 Next CDB Byte Access (Byte 5 of 10) T23.10.5 Next CDB Byte Access (Byte 6 of 10) T23.10.
64 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. 12.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A 65 _____________________________________________________________________________________ 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.
66 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D ______________________________________________________________________________________ 14.0 Seagate Technical support services Seagate Technology provides technical support literature and diagnostic utilities to Authorized Distributors. Please contact your dealer for technical support and installation troubleshooting.
Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. D 67 _____________________________________________________________________________________ Seagate Peripheral Family Listed below are some of the SEAGATE Peripheral family members. For specific information on each member, refer to the appropriate documents.
68 Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev.
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 77767452, Rev.
