
S T 3 5 0 0 A    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    1546|  865|     |
Capacity form/unform   426/  502 MB        Heads           7|   15|     |
Seek time   / track  11.0/     ms          Sector/track     |   62|     |
Controller           IDE / AT              Precompensation
Cache/Buffer           256 KB              Landing Zone
Data transfer rate    4.000 MB/S int       Bytes/Sector      512
                      8.000 MB/S ext
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle           5.0 W     Shock        g                 |
       seek           7.0 W     Rotation   RPM
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     200000
                                Warranty Month        12
Lift/Lock/Park     YES          Certificates     CSA,FCC,IEC950,UL1950,VDE    

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SEAGATE  ST3600/ST3500-A  INSTALLATION GUIDE 77738481, REV. A

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XX I/O
  |                                                         |XX 40 Pin
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |X2
  |                                                         |
  |                                                         |XX
  |                                                         |XX Power
  |                                                J6       |+-+
  |                                                 +-----1 || |J5
  +-------------------------------------------------+-----+-++-+



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                      J   U   M   P   E   R   S
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SEAGATE  ST3600/ST3500-A  INSTALLATION GUIDE 77738481, REV.A

 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. Headers used are the standard .100" center type.

 J5  Drive Select
 ----------------
       A
      +-------------+             +-------------+
      |X  o  o  o  1|             |o  o  o  o  1|
      |X  o  o  o  o|           B |xxxx  o  o  o|
      +-------------+             +-------------+
           C                                D
      +-------------+             +-------------+
      |o  xxxx  o  1|             |o  o  X  o  1|
      |o  o  o  o  o|             |o  o  X  o  o|
      +-------------+             +-------------+
               E                            F
      +-------------+             +-------------+
      |o  o  xxxx  1|             |o  o  o  X  1|
      |o  o  o  o  o|             |o  o  o  X  o|
      +-------------+             +-------------+
                                               H
      +-------------+             +-------------+
      |o  o  o  xxxx|G            |o  o  o  o  X|
      |o  o  o  o  o|             |o  o  o  o  X|
      +-------------+             +-------------+

 A     B
 OFF   OFF    Drive is the slave (Drive 1).
 OFF   ON     Drive is the master (Drive 0) with slave (Drive 1)
              present.
 ON    OFF    Drive is the master (Drive 0).

 C
 ON           Slave (Drive 1) Present is connected to J4 pin 39. This
              jumper is mutually exclusive with jumpers "D" and "E"
              (jumper "D" or "E" cannot be installed if jumper "C" is
              installed).
 OFF          Slave Present is not connected to J4 pin 39.

 E
 ON           SPSYNC is connected to J4 pin 39. This jumper is
              mutually exclusive with jumpers "C", "D", "F", and "G".
 OFF          SPSYNC is not connected to J4 pin 39.

 F
 ON           No external reference for SPSYNC. This jumper is
              mutually exclusive with jumper "E" and "G".
 OFF          This location provides a part for external connection of
              the synchronized spindle reference signal SPSYNC (Pin 3)
              an dground (Pin 4).

 G
 ON           SPSYNC is connected to J4 pin 28. This jumper is
              mutually exclusive with jumpers "E" and "F".
 OFF          SPSYNC is not connected to J4 Pin 28.

 H
 ON           Cable select option enabled.
 OFF          Cable select option not eneabled.



 J6  Remote LED
 --------------
       +-1--2--3-+
       | o  o  o |
       | o  o  o |
       +---------+

 1     Remote LED connection. Pin 6 is connected to +5V through a 147
       ohm resistor. Pin 5 is the LED driver.

 2     Reserved jumper position.

 3     Reserved jumper position.



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SEAGATE  ST3600 FAMILY  INSTALLATION GUIDE 77738481, REV. A

 Installation
 ============

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

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

 The drive may be mounted in any orientation.

 Mount to host system 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 surfce of the chassis.
 Tighten the screws down evenly to approximately 8 inch-Ibl. Do not
 over tigthen or force when screw does not seem to screw in easily
 (threads not correctly engaged).

 Verify that all connections between the drive and the host system are
 correctly installed. Most cables have a contrasting color stripe
 indicating pin 1.

 The disc drive(s) are to be installed in a customer supplied
 enclosure where the surrounding air does not exceed 50* C.


 Grounding
 ---------
 Signal ground (PCB) and HDA ground are connected together in the
 ST3600 drive 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 cable connection
 -------------------------------
 Models ST3600N/ND are SCSI interface drives. System connection is
 via a 50-pin SCSI connector. Some cables have a contrasting color
 stripe on one edge to indicate pin 1. Strain relief is recommended
 at the cable. Do not block system cooling air flow in routing of
 cables.


 AT (IDE) interface cable connection
 -----------------------------------
 Model ST3600A Family drives AT (IDE) interface drive. System
 connection is via a 40 pin AT (IDE) connector. Some cables have a
 contrasting color strip on one edge to indicate pin 1. Use a strain
 relief device at the cable. Do not block system cooling air with the
 routing of cables.

 Connect the AT (IDE) I/O connector cable end to drive 0 (master) and
 if there is a drive 1 (slave) connect it to the connector in the
 middle of the cable.

 Order of locating the drives in the daisychain is not as important as
 getting proper drive ID set up for the drives intended for drive 0
 and drive 1.


 DC Power connection
 -------------------
 The drive receives DC power through a 4 pin connector mounted on the
 PCB next to the SCSI or AT (IDE) I/O connector.

 Pin 1    +12 V
     2    +12 V Return
     3    + 5 V Return
     4    + 5 V


 SCSI Resistor terminator packs
 ------------------------------
 If you are installing a single drive, the resistor terminator packs
 must remain installed. If you are installing multiple hard disc
 drives, remove the resistor termination packs from all the drives but
 the one connected to the end of the SCSI I/O cable.

 When reinstalling a resisor pack, note that pin 1 end on the pack is
 denoted by a dot, a number one or a notch. Usually, a square pad on
 the disc drive printed wiring assembly indicates pin 1 at the socket.

 Model numbers that end in "ND" have differential I/O circuits and
 these drives have no provisions for terminators that plug into the
 drive PCB. The system manufacturer must provide some external means
 of I/O line termination.

 The AT (IDE) interface drives have permanent internal I/O line
 termination and do not have removable terminators.



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                      F   E   A   T   U   R   E  S
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SEAGATE  ST3600 FAMILY  INSTALLATION GUIDE 77738481, REV. A

 Electromagnetic interference (EMI) considerations
 -------------------------------------------------
 The drive(s) described herein, as delivered, are designed for system
 integration and installing into a suitable enclosure prior to use.
 As such, the drive(s) described herein are supplied as a sub-assembly
 and are not subject to Subpart J of Part 15 of the FCC Rules and
 Regulations nor the radio Interference Regulations of the Canadian
 Department of Communications.

 However, the unit has been tested using proper shielding and ground-
 ing and found to be compliant with the Class A limits of the FCC
 Rules and the Regulations of the Canadian Department of
 Communications.

 Safety instructions
 -------------------
 The power supply must satisfy the safety requirements for SELV
 (Safety Extra Low Voltage) circuits.

 The incorporation of the disc drives listed in this guide into a
 customer enclosure must meet the appropriate safety requirements of
 the country in which it is used (e.g. UL 1950, CAN/CSA-C22.2 No. 950-
 M89, DIN VDE 0805/05.90 and EN 60950:1988 (IEC 950).


 Low Level formatting
 --------------------
 All ST3600 family drive models are low-level formatted at the factory
 and do not require this step during installation. If an installed
 drive is low-level formatted, all user data will be lost.


 Partitioning and high level formatting
 --------------------------------------
 A drive can be sub-divided into "partitions" which behave as
 individual drives within the system.


 Read/Write head auto-park
 -------------------------
 Seagate disc drives described herein mentioned in this drive park the
 heads automatically at power off. This feature requires no operator
 intervention.


 Write precompensation and reduced write current
 -----------------------------------------------
 Not required on Seagate SCSI or AT (IDE) interface drives covered by
 this manual.


 SCSI interface drives
 ---------------------
 The SCSI interface handles both drive geometry and defect management
 internally. In AT systems a drive type of zero, or the "no drive
 installed" option is selected for systems with SCSI drives.

 All SCSI interface drives are low-level formatted at the factory. You
 may wish to low-level format the drive to optimize performance for
 your system. Consult the controller documentation for information on
 low-level formatting. Partitioning and high-level formatting can be
 done through DOS by way of the FDISK utility for partiioning, and
 FORMAT for high-level formatting.


 AT (IDE) interface drives
 -------------------------
 Seagate AT interface drives mimic (translate) other drive geometries.
 If none of the drive types offered by the CMOS supports the number of
 heads, cylinders and sectors shown by the table, and your system
 does not support a "user-defined" drive type, then select a drive
 type in your system CMOS with a capacity which is less than or
 equal to the capacity given in the "MBytes" section of the table.

 Model       MBytes (F)    Cylinders   R/W Heads    Sectors/Track
 ST3600A     528           1024        16           63
 ST3500A     426            895        15           62

 When specifying drive geometry to the systems CMOS different values
 may be used for the Cylinders, Read/Write Heads and Sectors/Track
 than those given below. However, the final drive capacity shown by
 the CMOS cannot exceed the capacity shown in the MBytes column of the
 table.

 If your BIOS offers a "custom drive" or a "user-defined" drive type,
 use one of the configurations listed in the previous table.

 The CMOS calculation of drive capacity is based on a variation of the
 number of bits in a megabyte, for purposes related to hexadecimal
 addressing. When the drive geometry has been entered into the "user
 defined" or "custom" drive type. This number should correspond with
 the capacity listed in the MBytes column of the table.

 Note that the drive will provide the user with full capacity as
 specified in the MBytes (F) column of the table. The drive capacity
 can be verified by using the CHKDSK utility provided with DOS after
 the high-level formatting has been completed.


