
S T 1 5 2 3 0 N C           H A W K   4    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    3892|     |     |
Capacity form/unform  4294/ 5160 MB        Heads          19|     |     |
Seek time   / track  10.0/ 1.7 ms          Sector/track     |     |     |
Controller           SCSI2 SI/FAST         Precompensation
Cache/Buffer           512 KB ADAPTIVE     Landing Zone
Data transfer rate    6.000 MB/S int       Bytes/Sector      512
                     10.000 MB/S ext SYNC
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 70
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle           9.0 W     Shock        g                 |
       seek               W     Rotation   RPM      5411
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     800000
                                Warranty Month        60
Lift/Lock/Park     YES          Certificates



**********************************************************************
                        L   A   Y   O   U   T
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SEAGATE  ST15230NC  INSTALLATION GUIDE 77767474 REV. A 3/1994

  +---------------------------------------------------------+
  |                                                         |
  |                                                         |+--+
  |                                                         ||XX|
  |                                                         ||XX|I/O
  |                                                         ||XX|
  |                                                         ||XX|J1
 ++                                                         ||XX|
 ++LED                                                      ||XX|
  |                                                         ||XX|
  |                                                         ||XX|
  |                                                         ||XX|
  |+-+                                                      ||XX|
  || |                                                      ||XX|
  || | J6                                   J2              ||XX|
  |+-1                                  8--------1          |+--+
  |                                     +--------+          |
  +---------------------------------------------------------+



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST15230NC  INSTALLATION GUIDE 77767474, REV. A  3/1994

 Jumper setting
 ==============

 Each disk drive has one or more option select header connectors on
 the back, side or front where jumper plugs are installed to select
 the way that the drive is to be configured or to select its ID on the
 I/O bus.


 J2  Motor Start/Write Protect/Terminator Power
 ----------------------------------------------

              Position Numbers
          +-1--2--3--4--5--6--7--8-+         X SCSI
 ---------+ o  X  o  o  o  o  o  1 +---------X
          | o  X  o  o  o  o  xxxx |
          +----+-------------------+ \ Position A
              Position 2

     1   for Factory use only.

     2   Jumper installed in position 2 enables the Delayed Motor
         Start option (if jumper in position 3 is off). Motor start
         delays is 16 times the drive ID number in seconds; i.e. drive
         ID 0 starts immediately. Drive one starts 16 seconds later,
         etc.

     3   Jumper installed enables Motor Start option. The drive waits
         for the Start unit command from the host before starting the
         spindle motor. If no jumper is installed, drive operation de-
         pends on wether or not there is a jumper in position 2.

         If jumpers 2 and 3 are both off, drive spins up with no delay
         when power is applied.

     4   Jumper installed means entire drive is write protected.

     5   Jumper installed means parity checking by the drive is
         enabled.


 J6 SCSI ID
 -----------
 SCSI address selection
 -----------------------
 On "NC" model drives the SCSI ID can be and presumably will be, set
 over the 80 pin interface by the host computer. Unless directed to
 do so by the system documentation, no jumpers should be installed for
 address selection. On "NC" model drives, the host system also has
 complete control over motor start functions, so no Motor Start or
 Delayed Motor Start Jumpers should be installed.


       HDA      A2   A0   Drive with HDA up, PCB down, viewed from
  +-------+------+---++   front.
  |* * * *|* * * * * 1|
  |* * * *|* * * * * *|
  +RESERVED--------+--+
   Shipped         A1
   with cover
   installed.

   +----------+-----------------------+
   | SCSI ID  |        Jumpers        |
   |          |  A2   |  A1   |  A0   |
   +----------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+
   |    2     | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+
   |    3     | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+
   |    4     | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+
   |    5     | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+
   |    6     | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+
   |    7     | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+

 Jumper header J6 can be used in one of five possible ways:

 1. Do not use J6 at all, but instead use the same functions conveyed
    on lines in the 80 pin I/O connector (J1) to/from the host.

 2. Use jumpers on J6 only to establish drive ID on the SCSI bus. Do
    not use both J6 and J1 signals to establish the drive ID. The SSP
    (sync spindle) and the drive activity LED signals in I/O connector
    J1 may be used to convey those twoo signals to/from the host.

 3. Install a connector/cable on J6 for remote drive ID switching. Do
    not use both J6 and J1 signals to establish the drive ID. The SSP
    and drive activity LED signals in J1 I/O connector can be used in
    this situation, or see option 5 below.

 4. Install a connector/cable on J6 for SSP and remote drive activity
    LED. Use I/O connector J1 for the drive ID signals.

 5. Install a connector/cable on J6 for all (remote ID switching, SSP
    and remote LED). Do not use both J6 and J1 to establish drive ID.

 The "NC" model drive time-shares the drive ID LED/SSP functions of
 J6. The drive reads the ID from J1 and pins 1, 3 and 5 of J6 for
 250 ms after power-on reset. So that ID jumper plugs can be used on
 J6, pins 2, 4 and 6 are driven to ground through a transistor for the
 250 ms period. After that, the drive makes available on the J6 header
 pins 8 and 6 the remote LED and SSP functions the remainder of the
 time.

 SSP
 Time shared connection for the reference index signal (REFIND+)
 (J6 pin 6, bottom) for sync spindle feature. SSP signal in J1 may be
 used instead.

 LED
 Time shared pins used to connect a cable for a remote LED indicator.
 Pin 4 (bottom), the cathode connection connects in the drive to GRD
 through the emitter-collector junction of a transistor switch that
 controls the LED on/off condition. LED signal J1 may be used instead.

 The PCB on "NC" models does not have connector J5, and has a single
 80 oin combined SCSI I/O and DC power connector instead of the
 normal 50 pin SCSI I/O and 4 pin DC power connectors. Included among
 the 80 pins are the SCSI ID, Motor Start and Delayed Motor Start
 select functions, and the synchronous spindle master sync signal and
 the remote LED signals. Do not use J2 and J6 for these five functions
 if the host uses the ones included in the 80 pin connector J1. The
 J6 connector signals conform to SFF-8009 Revision 2.0, Unitized
 Connector for Cabled Drives signal assignments for Auxiliary
 Connector. ENTERM- and FAULT- are not connected.



**********************************************************************
                      I   N   S   T   A   L   L
**********************************************************************
SEAGATE  ST15230NC  INSTALLATION GUIDE 77767474, REV.A

 Notes On Installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

 Disc drive mounting
 -------------------
 The drive may be mounted in any orientation.

 Mount to the host chassis using four 6-32 UNC screws. Three mounting
 holes are in each side and four in the bottom of the drive. The
 maximum length that the screws should extend into the side chassis
 mounting holes is 0.15 inch (3.81 mm), and 0.20 inch (5.1 mm) into
 bottom holes, measured from the outer surface of the chassis. The
 minimum thread engagement for all mounting screws is .12 inch (3.05
 mm). Tighten the screws evenly to a maximum torque of 6 in-lb (.675
 NM). Do not over tighten or force when screw does not seem to screw
 in easily (threads not correctly engaged).


 Grounding
 ---------
 Signal ground (PCB) and HDA ground are connected together in the
 Hawk 4 family drives and cannot be separated by the user. The
 equipment in which the drive is mounted is connected directly to the
 HDA and PCB with no electrically isolating shock mounts. If it is
 desired for the system chassis to not be connected to the HDA/PCB
 ground, the systems integrator or user must provide a nonconductive
 (electrically isolating) method of mounting the drive in the host
 equipment.


 SCSI interface drives
 ---------------------
 The SCSI interface handles both drive geometry and defect management
 internally. The "no drive installed" option is selected for systems
 with SCSI drives.



**********************************************************************
                      G   E   N   E   R   A   L
**********************************************************************
SEAGATE   SUPPORT SERVICES

 Seagate Technology
 ------------------
 Technical Support Services
 If you need assistance installing your drive, consult your dealer.
 Dealers are familiar with their unique system configurations and can
 help you with system conflicts and other technical issues. If you
 need additional assistance with your Seagate(r) drive or other
 Seagate products, use one of the Seagate technical support services
 listed below.

 SeaFONE at 1-800-SEAGATE (1-800-732-4283)
 Seagate's 800 number allows toll-free access to automated self-help
 services, providing answers to commonly asked questions,
 troubleshooting tips and specifications for disc drives and tape
 drives. This service is available 24 hours daily and requires a
 touch-tone phone. If you need to speak to a technical support
 engineer, dial this number and listen to the options for technical
 support. (International callers can also reach this automated
 self-help service by dialing 408-456-4496).


 Seagate Technology online services
 Using a modem, you can obtain troubleshooting tips, free utility
 programs, drive specifications and jumper settings for Seagate's
 entire product line. You can also download software for installing
 and analyzing your drive.

 SeaNET
 You can obtain technical information on Seagate drives, Seagate
 software and much more over the Internet from Seagate's World Wide
 Web home page (http://www.seagate.com) or Seagate's ftp server
 (ftp://ftp.seagate.com).

 You may also send E-mail with your questions to DiscSupport@
 Seagate.com or TapeSupport@Seagate.com.


 SeaBOARD
 SeaBOARD is a computer bulletin board system (BBS) that contains
 information about Seagate's disc and tape drive products and is
 available 24 hours daily. Set your communications software to eight
 data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers
 are listed in the following table.

 BBS Location           Modem number
 United States      Disc: 408-434-1080; Tape: 408-456-4415
 England            44-1628-478011
 France                         33 1-48 25 35 95
 Germany            49-89-140-9331
 Singapore          65-292-6973
 Thailand           662-531-8111
 Australia          61-2-9756-2359
 Taiwan             886-2-719-6075

 Seagate CompuServe forum
 Online technical support for Seagate products is available on
 CompuServe. To access our technical support forum, type go seagate.
 This forum provides information similar to that found on SeaBOARD.
 In addition, you can type questions or browse through previous
 questions and answers on the forum messages.

 Seagate Technology FAX services
 SeaFAX
 You can use a touch-tone telephone to access Seagate's automated FAX
 system to receive technical support information by return FAX. This
 service is available 24 hours daily.
 Location               Telephone number
 United States          1-800-SEAGATE or 408-456-4496
 England                44-1628-894084
 Australia              61-2-9756-5170

 Seagate technical support FAX
 You can FAX questions or comments to technical support specialists 24
 hours daily. Responses are sent during business hours.
 Location               FAX number
 United States          408-944-9120
 England                        44-1628-890660
 France                 33 1-46 04 42 50
 Germany                        49-89-1430-5100
 Australia              61-2-9725-4052
 Singapore              65-293-4722
 Hong Kong              852-2368 7173
 Taiwan                 886-2-715-2923
 Korea                          82-2-556-7294/4251


 Seagate technical support
 You can talk to a technical support specialist during business hours
 Monday through Friday for one-on-one technical help.  Before calling,
 note your system configuration and drive model number (STxxxx). There
 are several technical support phone numbers available for various
 Seagate products.

 Location          Telephone  number
 United States Please dial 1-800-SEAGATE for the specific product
               telephone number.
               (6:00 A.M. to 11:15 A.M., 12:30 P.M. to 5:00 P.M.,
               Pacific time, M-F)
 England       44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to
               5:00 P.M., M-F)
 France        33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Germany       Disc: 49-89-140-9332; (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 4:00 P.M., M-F)
               Tape: 49-89-140-9333
 Australia     61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M-F)
 Singapore     65-290-3998 (9:00 A.M. to 12:00 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Hong Kong     852-2368 9918
 Taiwan        886-2-514-2237
 Korea         82-2-556-8241


 SeaTDD 408-944-9121
 Using a telecommunications device for the deaf (TDD), you can send
 questions or comments 24 hours daily and exchange messages with a
 technical support specialist between 6:00 A.M. to 11:15 A.M. and
 12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday.


 Customer Service Centers
 Seagate direct OEM, Distribution, System Integrator and Retail
 customers should contact your Seagate Service Representative for
 warranty information.  Other customers contact your place of
 purchase.  Seagate offers comprehensive customer support for all
 Seagate drives.  Seagate customer service centers are the only
 facilities authorized to service Seagate drives. These services are
 available worldwide.

 Location                       Telephone number                FAX number
 United States          1-800-468-3472;                 405-949-6740
 Other Americas
 (Canada & Brazil)      405-949-6706;               405-949-6738
 Mexico                         525-546-6965;                   525-546-4888
 Europe, Middle
 East & Africa          31-2065-43300;              31-2065-34320
 Asia Pacific &
 Australia              65-485-3595;                    65-485-4980
 Japan                          81-3-5462-2904;                 81-3-3462-2979


 Seagate, Seagate Technology and the Seagate logo are registered
 trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD,
 SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or
 registered trademarks of Seagate Technology, Inc. or one of its
 subsidiaries. All other trademarks or registered trademarks are the
 property of their respective owners.


