DISK DRIVE SPECIFICATIONS.

     MODEL  M2235AS                        Part number B03B-4695-B042A   

        INTERFACE  ST506/412        RECORDING CODE   MFM         

        CAPACITY----Unformatted  26.66    Mb.   Formatted  20.97      Mb.
                    Per Track  10,416 (unformatted) bytes 
          Sectors/track   32       

        NUMBER OF---Heads        8                
                    Cylinders    320           
        POSITIONING TIME 
                    Track to track  18      mS. Average   83       mS.
                    Maximum      192      mS. 

        SPINDLE SPEED     3600      R.P.M.    AVERAGE LATENCY  8.3     mS.

        DENSITY---Recording  10,200   B.P.I.     Track  300        T.P.I.
                  
        DATA TRANSFER RATE  625 KB/S
                                     

        ERROR RATES   Recoverable   10 per 10*E 11 bits read
                      Non-recoverable  10 per 10*E 13 bits read
                      Seek       10 per 10*E 7 seeks     


                              PHYSICAL SPECIFICATIONS

        DIMENSIONS.  (H*W*D) 3.3"*5.7"*8.0"          WEIGHT.  5.5 LB    _
        POWER REQUIREMENTS. 12 VDC  1.8A (max.4.0A) 
                            5 VDC  1A               
               Consumption.   27        Watts.

                                OPERATING          NON-OPERATING     
        Temperature - - - - |5 to 45 C          | -40 to 60 C        |
        Humidity - - - - - -|20% to 80% RH      | 5% to 95% RH       |
        Altitude - - - - - -|< 10,000 ft        | < 40,000 ft        |
        Vibration - - - - - |< .2 G (3 to 60 HZ)| < .4 G (3 to 60 HZ)|
        Shock - - - - - - - |< 2 G (max. 10 ms) | < 3 G (max. 10 ms) |
        Temperature Gradient|         < 15 deg C / hour              |

                                  RELIABILITY DATA

             Mean time before failure  > 20,000       Hrs.
              Mean time to repair      < .5     Hrs.
               Component life             5    Yrs.
    
                                   STANDARDS

          UL       Yes                  
          CSA      Yes                  
SA      Yes              
-....1200 N81N         ........................