9 1 2 1 E    NCL
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/HH              Cylinders    1166|     |     |
Capacity form/unform   107/      MB        Heads           5|     |     |
Seek time   / track  16.5/     ms          Sector/track   36|     |     |
Controller           ESDI                  Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.250 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      50000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

Layout

BRAND BT-9121/BT-9170/BT-9220-E PRODUCT DESCRIPTION

  +---------------------------------------------------------+
  |                                       1-+Spindle        |XX
  |                                       | |motor          |XX J2
  |                                       +-+               |XXData
  |                                                         |XX
  |                                                         |
  |                                              +----J4  ++|XX
  |                                              1----+   |||XX
  |                                             Terminator|||XX
  |                                             Resistor  |||XX
  |                                                       ++|XX J1
  |                                                       ++|XXControl
  |                                             Terminator|||XX
  |                                             Resistor  |||XX
  |                                                       |||XX
  |                                                       ++|
  |                                                         |XX J3
  |                                                         |XXPower
  +---------------------------------------------------------+

Jumpers

BRAND BT-9121E/B-9170E/BT-9220E PRODUCT DESCRIPTION

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

 J4 Drive Select
 ---------------
   +----------+-----------------------+
   | Drive    |        Jumpers        |
   | Address  | 5-6   | 3-4   | 1-2   |
   +----------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  |(Deselected)
   |    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|
   +----------+-------+-------+-------+

J4 Soft/Hard Sector Configuration
---------------------------------

              B
            +-+-+
        +  10-+8-+6-+4-+-2+ J4
     A -+  +--+--+--+--+--+
        +  +9-+7-+5-+3-+-1+
            +-+-+ +--+---+--- Drive Address
              C

9 & 10 is position A
8 & 10 is position B
7 & 9 is position C

              B            JUMPER IN POSITION A
            +-+-+          +--+--+
        +  10-+8-+-        |XX| O| Soft Sectored mode
     A -+  +--+--+-        +XX+--+ Bytes per sector are determined
        +  +9-+7-+-        |XX| O| by the Controller
            +-+-+          +--+--+
              C

              B            NO JUMPER
            +-+-+          +--+--+
        +  10-+8-+-        |O | O|  35 Sectors/track
     A -+  +--+--+-        +--+--+ 512 Bytes/Sector (Formatted)
        +  +9-+7-+-        |O | O| 598 Bytes/Sector (Unformatted)
            +-+-+          +--+--+
              C

              B            JUMPER IN POSITION B
            +-+-+          +--+--+
        +  10-+8-+-        |XXXXX|  36 Sectors/track
     A -+  +--+--+-        +--+--+ 512 Bytes/Sector (Formatted)
        +  +9-+7-+-        |O | O| 581 Bytes/Sector (Unformatted)
            +-+-+          +--+--+
              C

              B            JUMPER IN POSITION C
            +-+-+          +--+--+
        +  10-+8-+-        |O | O|  34 Sectors/track
     A -+  +--+--+-        +--+--+ 512 Bytes/Sector (Formatted)
        +  +9-+7-+-        |XXXXX| 615 Bytes/Sector (Unformatted)
            +-+-+          +--+--+
              C

              B            JUMPER IN POSITION B & C
            +-+-+          +--+--+
        +  10-+8-+-        |XXXXX|  64 Sectors/track
     A -+  +--+--+-        +--+--+ 256 Bytes/Sector (Formatted)
        +  +9-+7-+-        |XXXXX| 327 Bytes/Sector (Unformatted)
            +-+-+          +--+--+
              C

 Spindle Motor Option Jumper
 ---------------------------
 Pins 1 & 2  OPEN   Spindle motor starts when power is applied
                    (power-up)
             CLOSED Spindle motor starts on command

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hard drive, hdd, hard disc, 9121E, 107MB, 5.25