
S D - 3 5 4 0 N - 3 0    TEAC
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SUPERSLIMLINE    Cylinders    3332| 1024| 1059|
Capacity form/unform   546/      MB        Heads           4|   16|   16|
Seek time   / track  11.0/ 2.0 ms          Sector/track     |   63|   63|
Controller           IDE / AT              Precompensation
Cache/Buffer           128 KB              Landing Zone
Data transfer rate          MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 60
Power: sleep          1.1 W     Humidity     %         8 80    |      5 95
       standby        1.2 W     Altitude    km    -0.300  3.000| -0.300 12.000
       idle           2.3 W     Shock        g         5       |    100
       seek           5.9 W     Rotation   RPM      4800
       read/write     3.6 W     Acoustic   dBA        40
       spin-up            W     ECC        Bit   48,ON THE FLY
                                MTBF         h     250000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,TUV,UL478,VDE            

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TEAC     SD-3540N-30 HDD SPECIFICATION REV. B D0001670-0B

  +---------------------------------------------------------+  1
  |                                                         |XX
  |                                                         |XX 50-Pin
  |                                                         |XX I/O
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |  25
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  +---------------------------------------------------------+



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TEAC     SD-3540N-30 HDD SPECIFICATION REV. B D0001670-0B

 Jumper Setting
 ==============

 Setting the Drive Number
 ------------------------
 This HDD can be used independently or with another HDD in a daisy-
 chain configuration. Set the drive number according to usage. The
 following two procedures can be performed:

 A: Attach strape S1 and S2 to the docking bay PC board.
 B: Execute the DOS "SDCONFIG.EXE" utility.

 If Procedure-A is performed, execute "SDCONFIG.EXE" beforehand, and
 set "Drive Select" to CSEL. The factory-preset is CSEL, so unless
 "Drive Select" has been changed, it is not necessary to reset it.

 Perform Procedure-B in the following manner:

 1. When one HDD is to be used,
    a) Connect the drive to the host system
    b) Boot DOS from the floppy disk
    c) Execute "SDCONFIG.EXE" to set "Drive Select" to MASTER.

 2. When two HDDs are to be used,
    a) Connect only the target master drive to the host system
    b) Boot DOS from the floppy disk
    c) Execute "SDCONFIG.EXE" to set the HDD to MASTER
    d) Switch off the power, and remove the drive
    e) Connect only the target slave drive to the host system
    f) Boot DOS fom the floppy disk
    g) Execute "SDCONFIG.EXE" to set "Drive Select" to SLAVE
    h) Switch off the power, and connect both drives in a daisy-chain
       configuration
    i) Boot DOS from the floppy disk
    j) Execute "SDCONFIG.EXE" to confirm the presense of Drive 0 and
       Slave Drive


 Interface Signals
 -----------------
 -SLV/ACT   PIN 50
 -PDIAG     PIN 48
 -CS0       PIN 25
 -CS1       PIN 49
 +12VDC     PIN 14/37
 +5VDC      PIN 15/36


 -SLV/ACT: INPUT/OUTPUT SIGNAL (LOW-LEVEL TRUE)
 ----------------------------------------------
 This signal has the following two functions depending on the drive
 number (0 or 1) of the HDD.

 a) Drive 0: This signal becomes the input signal at self-diagnosis;
    if it is TRUE, it recognizes the presence of the slave drive. This
    signal becomes the output signal in cases other than
    self-diagnosis and changes to TRUE only during the execution of
    commands.

 b) Drive 1: This signal becomes the -SLAVE PRESENT signal. It stays
    TRUE after the system is energized until either drive (0 or 1) is
    accessed. After that, it changes to TRUE during the execution of
    commands. The output of this signal is an open collector of the
    NPN transistor, allowing it to directly drive an external LED.
    The current-limiting resistor for the LED is not incorporated.


 -PDIAG: Input/Ouput sinal (low-level TRUE)
 ------------------------------------------
 This signal is switches between input and output depending on the
 drive number (0 or 1).

 a) Drive 0: This signal becomes the input signal. If two HDDs are
    connected in daisy-chain, this signal is an input signal that is
    used to receive the execution result of the DIAGNOSE command for
    the slave drive.
 b) Drive 1: This signal becomes the output signal. If two HDDs are
    connected in daisy-chain, this signal is an output signal that is
    used to inform the master drive of the execution result of the
    DIAGNOSE command. If, after execution of the DIAGNOSE command,
    there is no abnormality, this signal changes to TRUE.


 -CS0/-CS1 INPUT Signals (true at low level)
 -------------------------------------------
 Address lines used to select the interface register of the HDD. The
 address lines of the host system bus are decoded to be connected to
 them.



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TEAC     SD-3540N-30  HDD SPECIFICATION REV. B D0001670-0B

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

 Mounting Orientation
 --------------------
 Any orientation.


 Mounting method
 ---------------
 The HDD is fixed with screws through the mounting holes at the sides
 and top.


 Cooling system
 --------------
 Natural air ventilation


 Cable Connections
 -----------------
 The HDD has only the J1 connector (50 pins) for the IDE interface
 and power.


 Connector
 ---------
 HDD side connector:             KEL8821-050-170SD-27 or equivalent
 Cable side adaptable connector: KEL8802-050-170L or equivalent
                                 (Right angle PCB mounting)
                                 KEL8802E(R)-050-175 or equivalent
                                 (Flat cable)


 Cable
 -----
 Recommended cable: AWG28 flat cable
 Cable length:      60cm (2ft) or less


 Electrical Interface
 --------------------
 The following specifications apply to the interface signals on the
 connector J1.

 The input signal mentioned below means the signal applied to the HDD,
 and the output signal means the signal output from the HDD.

 Input signal
  Receiver           : CMOS receiver with hysteresis
 Input signal level
  High to low level  : 0.9   1.5V (excluding RESET signal)
                       1.0   1.6V (RESET signal)
  Low to high level  : 1.5   2.1V (excluding RESET signal)
                       2.0   2.6V (RESET signal)
 Leakage current     :  10 A
 Hysteresis width    : 1V


 Output signal
  Driver             : CMOS tri-state driver (excluding -SLV/ACT
                       signal)
                       Open collector driver (-SLV/ACT signal)

 Output signal level
 Low level           : 0.5V or less
 High level          : 2.4V or more


 Cautions in installation
 ------------------------
 a) The mounting cabinet for the HDD should be constructed so that no
    distortion may be produced in the chassis.

 b) Penetration of any screw into the drive must not exceed 2.3mm for
    the side mounting screw holes. The top mounting screws must not
    exceed 2.8mm.



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TEAC     SD-3540N-30  HARD DRIVE SPECIFICATION D0001670-0B REV. B


 Power Requirements
 ------------------
 The power supplies of this HDD come in two modes: for use with both
 5V and 12V, and for use with 5V only.

 The HDD itself determines whether 12V power is supplied. When used
 to drive the head actuator (voice coil motor), the 12V power supply
 is used. Otherwise the 5V power supply is used. Seek-speed will be
 faster with 12V than when only 5V power is fed.


