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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
        o+o x+x  o-|  (upper 2 pins)               /12-G-G-5-\ /--------\
        o o o o /o+/  #=========================#  | 0 0 0 0 | |Terminator
        o o o o |o|   |:::SCSI:Cable:::::::::::1|  \---------/ \--------/
   =====4=2=1=P=#T#===#=========================#==========================
   =====#=#=#=#==#=========================================================
        \-+-/ |  |
          |   |  \ 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)   || ||
                  |        \/           \/ \/      /12-G-G-5-\
       o o o o o o+o  #=========================#  | 0 0 0 0 |
       o o o o o x o  |:::SCSI:Cable:::::::::::1|  \---------/
      =M=4=2=1=P=T=T==#=========================#=================
      =#=#=#=#=#===#==============================================
       | \-+-/ |   |
       |   |   |   \- 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)