                         SEAGATE TECHNOLOGY, INC.
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Ŀ
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                            (C)opyright 1994



ST-15230W SCSI-2 Fast Wide (Hawk 4)

  ͻ
   REAR VIEW   (ST-15230W/WD only)
  ͼ
        (TOP)                   Auxiliary
          ___________________    1/\
        ( 1)ͳ:::::: 0 0 0 0 
          \ĳ/      5GG12
       68 pin I/O Cable        
                                
                                
                                
        Auxiliary option header 
           pin-11 +5v  ٳ
           pin-10 GND  ٳ
           SCSI ID = 8 ٳ
           SCSI ID = 4 Ĵ
            or pin-6 REFIND+ ٳ
           SCSI ID = 2 ٳ
           SCSI ID = 1 
           SCSI ID = 0 (none)


  ͻ
   REAR VIEW   (ST-15230WC only)
  ͼ
                     80 pin I/O and DC Power Wall/bracket Connection
                       Female
    J1          /ĳ\      TOP (HDA)
     /  \
              (\140/)    BOTTOM

     Notes on 80 pin I/O connector:
       pins  1 -  4 = +12v        41 - 44 = 12v GND
            34 - 36 = +5v         74 - 76 = 5v GND
                 37 = SYNC             77 = LEDC
                 38 = MTRON            78 = DLYDST
                 39 = SCSIA0           79 = SCSIA1
                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin
                                   2-557101-1 right angle to PCB

  ͻ
   RIGHT SIDE VIEW   (Both ST-15230W and ST-15230WC)
  ͼ


BACK   ͸       J2  12345678                    TOP (HDA)  FRONT
 OF    J1PWA OF
DRIVE  ;           ::::::::                    BOTTOM     DRIVE
                     
   Terminator Power ٳ Enable T-Res (ST15230W only)
  ڴTerminator Power ٳ Start Delay (12 secs * ID)
           Reserved ٳ Motor Start
      Parity Enable  Write Protect
  
  
   Ŀ
  Ĵ Termination Power-source Table 
    Ŀ
    ........PWA edge          
                                                  
      1 2     1 2      1 2                        
     ķ       ķ    ķ  A Drive Supplies Bus 
                B Drive Supplies Own 
                   C Bus Supplies Drive 
       A       B        C                         
    Default
  Note: The model ST-15230WC drive cannot furnish terminator power,
because no pins on the 80 pin I/O connector are devoted to terminator
power.


  ͻ
   FRONT VIEW   (Both ST-15230W and ST-15230WC)
  ͼ


                      TOP (HDA)   J6  1
     PWA͵::::::
                 *    BOTTOM          ;
                                      
            LED                      
                                       
                                       
               Auxiliary option header 
                  pin-11 +5v  ٳ
                  pin-10 GND  ٳ
                  SCSI ID = 8 ٳ
                   or pin-8 BUSY     
                  SCSI ID = 4 ٳ
                   or pin-6 REFIND+      
                  SCSI ID = 2 ٳ
                  SCSI ID = 1 
                  SCSI ID = 0 (none)

      If these ID jumper are used, then
         ID jumpers shown in left side view J5
         or 80 pin I/O cable ARE NOT USED.


                            ST-15230W
                            Hawk 4

       UNFORMATTED CAPACITY (MB) ________________5160
       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294
       AVERAGE SECTORS PER TRACK ________________110
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________75,848
       CYLINDERS ________________________________3,992 user
       HEADS ______PHYSICAL______________________19
       DISCS (3.5 in) ___________________________10
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________34 to 63
       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync
       SPINDLE SPEED (RPM) ______________________5,411
       AVERAGE LATENCY (mSEC) ___________________5.54
       BUFFER ___________________________________512/2048 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST Wide
                                                 ASA II
       SECTORS PER DRIVE ________________________
       TPI (TRACKS PER INCH) ____________________3000
       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________1
       MAX FULL SEEK (ms) _______________________22
       MTBF (power-on hours) ____________________800,000
       SHOCK (G's):
                operating (Read/Write) __________10
                nonoperating ____________________60
       ACOUSTICS (typ/max dBA) __________________/
       POWER REQUIREMENTS: +12V START-UP (amps) _2.4
                           +12V TYPICAL (amps) __0.6
                           +5V START-UP (amps) __0.8
                           +5V TYPICAL (amps) ___0.43
                           TYPICAL (watts) ______9
                           MAXIMUM (watts) ______
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.63/41.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.75/146.1
                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with twelve spare sectors
per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product
offerings or specifications. (11/03/95)

