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Hard Drive: FUJITSU: M2903QAM 2100MB 3.5"/HH SCSI2 WIDE




M 2 9 0 3 Q A M    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    3150|     |     |
Capacity form/unform  2100/      MB        Heads          13|     |     |
Seek time   / track  10.0/ 2.0 ms          Sector/track     |     |     |
Controller           SCSI2 SI/WI/FAST      Precompensation
Cache/Buffer           512 KB              Landing Zone
Data transfer rate    4.700 MB/S int       Bytes/Sector      512
                     10.000 MB/S ext SYNC
Recording method     RLL 8/9                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 50    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km    -0.300  3.000| -0.300 12.000
       idle               W     Shock        g         5       |     50
       seek               W     Rotation   RPM      5400
       read/write         W     Acoustic   dBA        43
       spin-up            W     ECC        Bit
                                MTBF         h     500000
                                Warranty Month
Lift/Lock/Park     YES          Certificates

Layout

FUJITSU M2909Q/2903Q/2915Q JUMPER SETTING

  +------------------------------++-------------------------+
  |                          +--++++         CN6xxx         |XXI
  |                          |  +CN9                XXCN10  |XXN
  |   +----------+           |  +  |                        |XXT
  |   |          |           |  +  |                        |XXE
  |   |          |           |  +  |      CN7+-+            |XXR
  |   |          |          CN25+  |         | |            |XXF
  |   |          |           |  +  |         +-+            |XXA
  |   +----------+           +--+-++                        |XXC
  |                           +--++-+     CN4+-+            |XXE
  |                           |  +CN8        | |            |XX
  |                           |  +  |        +-+            |XX
  |  +-+CN20                  |  +  |                       |
  |  +-+                     CN24+  |                       |
  |                           |  +  |                       |
  |                           |  +  |                       |XX Power
  |                           +--+-++                       |XX
  +--------------------------------++-----------------------+

Jumpers

FUJITSU M2903RA/Q/M2909RA/Q/M2915RA/Q JUMPER SETTING

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

* = Factory default

 Terminal Connector CN4 SCSI ID
 ------------------------------
   +----------+-------------------------------+
   | SCSI ID  |       Jumper Location         |    +2-4-6-8+
   |          |             PINS              |    |* * * *|
   |          | ID4   |  ID2  |  ID1  |  ID0  |    |* * * *|CN4
   +----------+-------+-------+-------+-------+    +1-3-5-7+
   |    0     | OPEN  | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    3     | OPEN  | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    4     | OPEN  | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    5     | OPEN  | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    6     | OPEN  | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    7     | OPEN  | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    8     | CLOSED| OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    9     | CLOSED| OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   10     | CLOSED| OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   11     | CLOSED| OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |   12     | CLOSED| CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |   13     | CLOSED|CLOSED | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   14     | CLOSED| CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   15     | CLOSED| CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+

Set the SCSI ID so that there are no duplications between SCSI
devices on the SCSI bus.

The priority of SCSI bus use in ARBITRATION phase is determined by
SCSI ID as follows:

              7>6>5>4>3>2>1>0>15>14>13>12>11>10>9>8

 Terminal Connector CN6
 ----------------------
 +6-4-2+
 |* * *|
 |* * *| CN6
 +5-3-1+
  D P A

 Spindle motor control
   A    SHORT*  Auto Start on power up
        OPEN    Controlled by START/STOP UNIT command

Set how to control the starting HDD spindle motor. This setting only
determines the operation mode when the power supply is turned on or
the microcode is downloaded.

In both modes, stopping or restating the spindle motor can be
controlled by specifying the START/STOP UNIT command.

 SCSI Bus Parity checking
 ------------------------
   P   SHORT* Enabled
       OPEN   Disabled

 Offline Self-diagnostics
 ------------------------
   D   SHORT*  Diagnostic Mode
       OPEN    Normal Operation

Setting terminals CN5-6 are used to set starting/stopping the HDD
self-diagnostics. The offline self-diagnostics can test the normality
of the HDD controller function and the basic read/write operation,
the setting terminals must be open.

 Terminal Connector CN7
 ----------------------
 Spindle Sync I/O pulse. Master & Slave control determining whether to
 receive or transmit SPSYNC are set by MODE SELECT command. This
 terminal
  SY  Pin 1 GROUND
      Pin 2 SPSYNC

External Reset. This would normally be connected to a momentary
switch which would short pin 3 to ground for the reset of the drive
and SCSI bus. Normally used for debug purposes only.

  R   SHORT* External reset signal when connected to ground
      OPEN   No connection

 CN7 Pins 5-6 Write protection
 -----------------------------
  WP  SHORT  Write operation is disabled
      OPEN*  Write operation is enabled

 CN7 Pins7-8 Termination of SCSI bus (Single-Ended type, 8-bit)
 --------------------------------------------------------------
  TM  SHORT* Enable terminating resistor
      OPEN   Disable terminating resistor

Setting terminal CN7 7-8 set whether to use the terminating resistor
circuit on the SCSI interface provided for the HDD. The setting
terminals enable the terminating resistor circuit to be connected on
the SCSI interface. Only the HDD of the single-ended type is
provided with the terminating resistor circuit.

 CN7 Pins7-8 Termination of SCSI bus (Differential type, 16-bit)
 ---------------------------------------------------------------
 7-8  SHORT* 16-bit SCSI mode setting
      OPEN   8-bit SCSI mode setting

Set setting terminal CN7 7-8 enable or disable the 16-bit SCSI mode.
When the 16-bit SCSI mode is enabled, all data bus (DB00 to DB15,
DBP0 to DBP1) can be effective. When the Differential type 16-bit
SCSI HDD is used as 8-bit SCSI device, this setting must be open.

Terminal Connector CN20 External LED connector
----------------------------------------------
Pin 1 LED(V)
Pin 2 -LED

 CN10 Single-Ended 16-bit
 ------------------------
  +4-2+
  |* *|
  |* *| CN10
  +3-1+

Setting terminals CN10 1-2 and 3-4 set whether to use the terminating
resistor circuit on the SCSI interface provided for the HDD.
The setting terminals enable the terminating resistor circuit to be
connected on the SCSI interface.

CAUTION
This setting is effective when the external operator panel (S6) is
connected and pin A9 (TERM-ON) is open.

 +-------+-------+---------------------------------------------------+
 |Pins   | Pins  |Connection of the terminating resistor on the SCSI |
 |1-2    | 3-4   |Interface                                          |
 +-------+-------+---------------------------------------------------+
 |OPEN   | OPEN  |Terminating resistor circuit is not connected      |
 +-------+-------+---------------------------------------------------+
 |CLOSED | CLOSED|Terminating resistor circuit is connected          |
 +-------+-------+---------------------------------------------------+

 CN10 Setting connecting of terminating resistor on SCSI interface
 -----------------------------------------------------------------
 (Single-ended type 16-bit SCSI is used as 8-bit SCSI)
 +-------+-------+---------------------------------------------------+
 |Pins   | Pins  |Connection of the terminating resistor on the SCSI |
 |1-2    | 3-4   |Interface                                          |
 +-------+-------+---------------------------------------------------+
 |OPEN   | CLOSED|Terminating resistor circuit is not connected      |
 +-------+-------+---------------------------------------------------+
 |CLOSED | CLOSED|Terminating resistor circuit is connected          |
 +-------+-------+---------------------------------------------------+

Install

FUJITSU INSTALLATION CONDITIONS SCSI

Mounting in Cabinet
-------------------
Note the following points regarding mounting of the HDD in a cabinet.
If circumstances prevent the HDD from being mounted as explained
below, contact to distributers, reseller, or our sales offices.

- Mount the HDD in the specified orientation.

Mounting the HDD in an orientaion other than the specified one may
adversely affect the temperature or may cause unexpected mechanical
stress to the HDD. This may lead to a failure to guarantee the
reliability level stated in the device specifications.

- Use the specified mounting screw holes.

Mount the HDD using the mounting screw holes for each model.

If the HDD is attached by a means other than screws or with screws
but not at all specified locations (four locations), unexpected
vibration or shock may be applied to the HDD or the HDD may
mechanically resonate. This may lead to a failure to guarantee the
vibration and shock resistance levels stated in the device
specifications.

- Use mounting screws of appropriate length.

A screw shorter than appropriate length is likely to loosen, causing
the HDD to drop off the cabinet.

A screw longer than appropriate length may touch the HDD body,
causing external vibration or shock to the HDD body. This may lead to
a failure to guarantee the vibration and shock resistance levels
stated in the device specifications.

- Ensure clearance between the HDD and the cabinet.

Be sure that there is a minimum 2.5 mm clearance between the HDD and
the cabinet. Failure to do so may block ventilation and adversely
affect the operating temperature of the HDD. It may also cause the
HDD to touch the cabinet, which may then induce electrical noise or
transmit external mechanical vibration or shock directly to the HDD
body. This may result in degraded HDD performance and reliability.

Pay special attention to those models whose DE potential is not zero
volatage. If this type of model contacts the cabinet connecting the
DE to zero volatage, data errors or device faults will occur.

Grounding
---------
In an HDD with a frame, the DE and frame are electrically isolated
from each other.

The DE is connected to signal ground (SG); the frame is connected to
frame ground (FG). Isolating the DE and frame in this way prevents
the adverse effects of external electrical noise.

Generally, a computer system uses some means of connecting SG and FG
at one point in the system. The method used may vary depending on the
system structure or environmental conditions.

The DE potential in some models is not zero volatage. Be careful not
to ground the DE body of this type of model.

SCSI cable connection
---------------------
Do not confuse the connector orientation when connecting the SCSI
cable. Connecting the cable in the wrong orientation may blow the
fuse of the SCSI device that supplies power to the terminating
resistor. If the SCSI device has no fuse, misconnection may destroy
the SCSI cable.

Power-off
---------
When power is turned off, a dynamic brake stops the rotating spindle
motor. This requires a given time until the motor is completely
stopped.

Applying vibration or shock to the HDD while the spindle motor
rotates after power-off may damage the HDD.

Connecting and Disconnecting Interface Connector (2.5-inch HDD)
---------------------------------------------------------------
The printed circuit board assembly of the 2.5-inch HDD is about 0.9
mm thinner than that of conventional HDDs. When connecting or
disconnecting the interface connector, push or pull the connector
straight so as to not give excess stress to the printed circuit board
assembly. Never force a connector. Excess stress may cause the
printed circuit board assembly to warp or crack, resulting in poor
(or no) contact.

Hot Plug (SCSI Device)
----------------------
Our HDDs are designed to support the hot plug feature. However, a
drop in output voltage, output interruption, or noise may be caused
while the HDD is starting. To minimize these symptoms, it is
recommended that a discrete power supply be installed for each HDD.

Also, connection or disconnection of the HDD may cause noise on the
interface signal line and cause an interface malfunction.

To prevent such a failure, connect zero volatage (SG) first, then
connect the interface line, and finally connect the power line.
Reverse the procedure when disconnecting the HDD.

When disconnecting the HDD, do not apply vibration or shock to the
HDD, before the power is turned off. This may disturb control of the
head positioning and degrade data read-write performance.

In the worst case, applying excess shock may damage the head or disk,
resulting in data destruction.

If there is a chance that the power to the HDD containing the
terminating resistor will be turned off, design the system so that
power to the terminating resistor (TERMPWR) is supplied from another
SCSI device. Generally, TERMPWR is supplied from the initiator
(host).

Features

NEVER

                           NEVER PRODUCED!













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