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                            (C)opyright 1991



ST-4182N (94161-182) Wren 3 FH SCSI

(3 by 5 configuration jumper block)

          Motor Start Option enable (horizontal)
             N/A
                  Terminator Power from Bus
        oo xx  oĳ  (upper 2 pins)               12GG5Ŀ Ŀ
        o o o o o  ͸   0 0 0 0  Terminator
        o o o o o   :::SCSI:Cable:::::::::::1  \/ 
   421PT
   
           
                Terminator Power (+5v) from drive (lower 2 pins)
              Parity Check Option Enable (vertical)
           Drive Select ID's (vertical)



(2 by 7 configuration jumper block)

                           1           1 1
     Terminator Power      --T-Res --  
   from Bus (horizontal)     (3 ea)    
                                            12GG5Ŀ
       o o o o o oo  ͸   0 0 0 0 
       o o o o o x o  :::SCSI:Cable:::::::::::1  \/
      M421PTT
      
            
                 Terminator Power (+5v) from drive (lower 2 pins)
              Parity Check Option Enable (vertical)
           Drive Select ID's (vertical)
        Motor Start Option enable


                             ST-4182N
                        94161-182 WREN 3 FH

       UNFORMATTED CAPACITY (MB) ________________182
       FORMATTED CAPACITY (35 SECTORS) (MB) _____155
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________8,721
       CYLINDERS ________________________________969
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL (2,7)
       TRANSFER RATE (mbytes/sec) _______________1.25
       SPINDLE SPEED (RPM) ______________________3,600
       AVERAGE LATENCY (mSEC) ___________________8.33
       BUFFER ___________________________________8 or 32 Kbyte
         8 Kbyte: FIFO, Non-Adaptive,
          Single-Segmented Buffer
         32 Kbyte: Read Look-Ahead, Non-Adaptive,
          Single-Segmented Buffer
       INTERFACE ________________________________SCSI
       TPI (TRACKS PER INCH) ____________________960
       BPI (BITS PER INCH) ______________________19,058
       AVERAGE ACCESS (ms) ______________________16.5
       SINGLE TRACK SEEK (ms) ___________________4
       MAX FULL SEEK (ms) _______________________40
       MTBF (power-on hours) ____________________100,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.5
                           +12V TYPICAL (amps) __1.5
                           +5V START-UP (amps) __1.7
                           +5V TYPICAL (amps) ___1.3
                           TYPICAL (watts) ______24
                           MAXIMUM (watts) ______63
       BUFFERED STEP PULSE RATE (micro sec) _____N/A
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product
offerings or specifications. (9/10/93)
