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Hard Drive: IBM: DBCA-204860 TRAVELST 4800MB 2.5"/SSL ATA4




D B C A - 2 0 4 8 6 0   T R A V E L S T    IBM
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 2.5"/SUPERSLIMLINE    Cylinders   11648|     |     |
Capacity form/unform  4800/      MB        Heads           3|     |     |
Seek time   / track  13.0/ 2.5 ms          Sector/track     |     |     |
Controller           IDE / ATA4            Precompensation
Cache/Buffer           512 KB              Landing Zone
Data transfer rate   10.000 MB/S int       Bytes/Sector      512
                     33.300 MB/S ext UDMA2
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 65
Power: sleep          0.1 W     Humidity     %         8 90    |      5 95
       standby        0.3 W     Altitude    km                 |
       idle           1.0 W     Shock        g       150       |    700
       seek           2.3 W     Rotation   RPM      4200
       read/write     2.0 W     Acoustic   dBA
       spin-up        4.7 W     ECC        Bit   DFT ENABLED
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

Layout

IBM DBCA-206480/204860/203240 INSTALLATIONS

              +--------------------------------------+
              |                                      |
              |                                      |
              |                                      |
              +--------Interface-------------49------+
              |     43**********************1 **47 Jumper
              |     44*************x********* **48   |
              +------------------------------50------+
              +                                      +

Pin position 20 is left blank for correct connector insertion.

Pin position 47 through 50 are used for drive address setting.

Jumpers

IBM DBCA-206480/204860/203240 INSTALLATIONS

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

Drive Address Setting
---------------------
A jumper is available at the interface connector to determine the
drive address.

   ---49--47+
    *   * X | Slave
    *   * X |
   ---50--48+

   ---49--47+
    *   * * | Master
    *   * * |
   ---50--48+

   ---49--47+
    *   * * | Cable Selection
    *   xxx |
   ---50--48+

   ---49--47+
    *   xxx |
    *   * * | RESERVED Never attach a jumper here!
   ---50--48+

   ---49--47+
    *   X * | NEVER ATTACH A JUMPER HERE!!!
    *   X * |
   ---50--48+

Cable Selection
---------------
Using Cable Selection, the drive address depends on the condition of
pin 28 of the AT interface cable. In the case when pin 28 is ground
or low, the drive is a Master. If pin 28 is open or high level, the
drive is a Slave.

Cabling
-------
The maximum cable length from the host system to the HDD plus circuit
pattern in the host system shall not exceed 18 inches.

AT Signal Connector
-------------------
The AT signal connector is designed to mate with Dupont part number
69764-044 or equivalent.

Install

IBM DBCA-206480/204860/203240 INSTALLATIONS

Notes on installation
=====================

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

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

The drive will operate in all axis (6 directions).

Performance and error rate will stay within specification limits if
the drive is operated in the other permissible orientations from
which it was formatted. Thus a drive formatted in a horizontal
orientation will be able to run vertically and vice versa.

The drive must be securely mounted in the system to prevent motion or
vibration during a seek operation or spindle rotation using
appropriate screws or equivalent mounting hardware.

The recommended mounting screw torque is 3.0 0.5 kgf.cm.

The recommended mounting screw depth is 3.0 0.3mm for bottom and
3.5 0.5mm for horizontal mounting.

Air Cooling Requirement
-----------------------
The host system must provide sufficient air flow across the drive to
maintain the temperature at less than 60*C (measured at the centre of
the files top cover).













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