DISK DRIVE SPECIFICATIONS

        MODEL: M2241AS                          PART NUMBER: B03B-4805-B001A

        INTERFACE: ST506                        RECORDING CODE: MFM 

        CAPACITY----Unformatted: 31.41 Mbytes   Formatted: 24.70 Mbytes
                    Per Track: 10.416 Kbytes    Sectors/track: 32

        NUMBER OF---Heads:     4                Servo Tracks: Dedicated
                    Cylinders: 754

        POSITIONING TIME:
                    Track to track: 8 msec.     Average: 33 msec.
                    Maximum:        60 msec.

        POSITIONING METHOD: Rotary Voice Coil Motor

        SPINDLE SPEED: 3,600 R.P.M.             AVERAGE LATENCY: 8.3 msec.

        DENSITY---Recording: 10,200 B.P.I.      Track: 760 T.P.I.

        DATA TRANSFER RATE
                    Burst: N/A
                    Sustained: 625 Kbytes/sec.
        BUFFER SIZE / TYPE: N/A

        START TIME: 20 sec.or less              STOP TIME: 15 sec. or less

        ERROR RATES:  Recoverable: 10 errors per 10E11 bits read
                      Non-recoverable: 10 errors per 10E13 bits read
                      Seek: 10 errors per 10E7 seeks

                              PHYSICAL SPECIFICATIONS

        DIMENSIONS: 146 mm X 83 mm X 203 mm     WEIGHT: 3.0 Kg
        POWER REQUIREMENTS: +12V +/- 5% , +5V +/- 5%
               CONSUMPTION: 30 Watts

                                OPERATING          NON-OPERATING     
        Temperature - - - - | 5 C to 45 C       | -40 C to 60 C      |
        Humidity - - - - - -| 20% to 80% RH     |  5% to 95% RH      |
        Altitude - - - - - -| 3,000 m or below  |  12,000 m or below |
        Vibration - - - - - | less than 0.2G    |  less than 0.4G    |
        Shock - - - - - - - | less than 2G      |  less than 20G     |
        Temperature Gradient| 15 C/h or less    |  15 C/h or less    |


                                  RELIABILITY DATA

        Mean Time Before Failure (MTBF): 20,000 Hrs.
        Mean Time To Repair (MTTR):         0.5 Hrs.
        Component life:                       5 Years
    
                                  STANDARDS

          UL    APPROVED 
          CSA   APPROVED 
          TUV   APPROVED