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Articles / TULARC / PC info / Hard Drives / TEAC Hard Drives / |  |
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Hard Drive: TEAC: SD-3250N-30 251MB 3.5"/SSL IDE / AT |
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S D - 3 2 5 0 N - 3 0 TEAC
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 3.5"/SUPERSLIMLINE Cylinders 2048| 961| |
Capacity form/unform 251/ MB Heads 4| 16| |
Seek time / track 18.0/ 3.5 ms Sector/track | 32| |
Controller IDE / AT Precompensation
Cache/Buffer 128 KB READ-AHEAD Landing Zone 961
Data transfer rate 2.458 MB/S int Bytes/Sector 512
8.000 MB/S ext
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 60
Power: sleep 1.3 W Humidity % 8 80 | 5 90
standby 2.4 W Altitude km |
idle 2.8 W Shock g 5 | 100
seek 3.7 W Rotation RPM 3600
read/write 3.2 W Acoustic dBA 40
spin-up W ECC Bit 48
MTBF h 250000
Warranty Month
Lift/Lock/Park YES Certificates CSA,TUV,UL478,VDE
TEAC SD-3250N-30 HDD SPECIFICATION 10530733-00 REV. F
+---------------------------------------------------------+ 1 | |XX | |XX 50-Pin | |XX I/O | |XX | |XX | |XX | |XX | | 25 | | | | | | | | | | | | | | | Part No. 19307005-30 | +---------------------------------------------------------+
TEAC SD-3250N-30 HDD SPECIFICATION 10530733-00 REV. F
Jumper Setting
==============
Setting the Drive Number
------------------------
This HDD can be used independently or with another HDD in a daisy-
chain configuration. Depending on how it is used, it is necessary
to set the drive number. Setting is performed by the execution of the
"SDCONFIG.EXE" command followed by the transfer of data from the
host system.
1. When one HDD is to be used
As the HDD is already factory-preset to the master drive, it is
not necessary to set anew. However, a drive that has been changed
to a slave drive needs to be set again to the master drive using
"SDCONFIG.EXE".
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 drive 0
d) Switch off the power to the system
e) Connect only the target slave drive to the host system
f) Boot DOS fom the floppy disk
g) Execute "SDCONFIG.EXE" to set the HDD to the slave drive
h) Switch off the power to the system, then connect both drives
to the host system
i) Boot DOS from the floppy disk
j) Execute "SDCONFIG.EXE" to confirm the presense of Drive 0 and
1
Interface Signals ----------------- -SLV/ACT PIN 50 -PDIAG PIN 48 -CS0 PIN 25 -CS1 PIN 49 +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.
TEAC SD-3250N-30 HDD SPECIFICATION 10530733-00 REV. F
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 --------- The HDD has only the J1 connector (50 Pin) for the IDE interface and power (pin 15/36 +5VDC).
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.
TEAC SD-3250N-30 HDD SPECIFICATION 10530733-00 REV. F
Transport condition
-------------------
The level I of the General Rules of Performance Testing for Packaged
Freights in JIS-Z0200 is satisfied when the specified packing case
is used.
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