Specifications for ST-31200N

ST-31200N SCSI-2 Fast (Hawk 1LP)

  +-----------+
  | REAR VIEW |  (ST-31200N only)
  +-----------+

         50 pin I/O Cable Connection
         |
    J1+------------------------1+ /---------\    TOP (HDA)
     -+:::::::::::::::::::::::::+-| 0 0 0 0 |--
      +-------------------------+ +-5-G-G-12+    BOTTOM



  +-----------+
  | REAR VIEW |  (ST-31200NC only)
  +-----------+
                     80 pin I/O and DC Power Wall/bracket Connection
                     |
    J1          /----|---------------\      TOP (HDA)
     ----------/ ++++++++++++++++++++ \----------
              (\-1------------------40/)    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
                                   2-557101-1 right angle to PCB

  +-----------------+
  | RIGHT SIDE VIEW |  (Both ST-31200N and ST-31200NC)
  +-----------------+


BACK   +-+       J2  12345678                    TOP (HDA)  FRONT
 OF    J1+----------------------P-W-A----------------------- OF
DRIVE  +-+           ::::::::                    BOTTOM     DRIVE
                     ||||||||
   |Terminator Power +||||||+ Reserved
  ++Terminator Power -+||||+- Start Delay (12 secs * ID)
  |     Enable T-Res --+||+-- Motor Start
  |    Parity Enable ---++--- Write Protect
  |
  |
  | +--------------------------------+
  +-+ Termination Power-source Table |
    +--------------------------------+-------------+
    |-----....-----....-----PWA edge-----          |
    |                                              |
    |  1 2     1 2      1 2                        |
    | +-+       +-+    +---+  A Drive Supplies Bus |
    | |°|°     °|°|    +°-°+  B Drive Supplies Own |
    | +°+°     °+°+     ° °   C Bus Supplies Drive |
    |   A       B        C                         |
    +---------Default------------------------------+


  +----------------+
  | LEFT SIDE VIEW |  (ST-31200N only)
  +----------------+             If these ID jumpers are used,
                                 then ID jumpers shown in front
                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 +--1+ +-+BACK
   OF   --------P-W-A-------------------------------+:::+-+J1 OF
  DRIVE                BOTTOM                       +---+ +-+DRIVE
                                                     |||
                                               ID 1 -+|+- ID 4
                                                    ID 2


  +------------+
  | FRONT VIEW |  (Both ST-31200N and ST-31200NC)
  +------------+


                      TOP (HDA)   J6  +-----1+
     --P-W-A--------------------------+::::::+-
                 *    BOTTOM          +------+
                 |                     123456
            LED -+                     ||||||
                                  ID 4 +||||+ Reserved
                                  ID 2 -+||+- Remote LED (pin-3 +5v)
                                  ID 1 --++-- Spindle Synchronization
                                               (pin-6 REF SIG+)
      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-31200N
                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________1258.8
       FORMATTED CAPACITY (xx SECTORS) (MB) _____1052.4
       AVERAGE SECTORS PER TRACK ________________84
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________24,300
       CYLINDERS ________________________________2,700 user
       HEADS ______PHYSICAL______________________9
       DISCS (3.5 in) ___________________________5
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 47.2
       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async
       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
       SPINDLE SPEED (RPM) ______________________5411
       AVERAGE LATENCY (mSEC) ___________________5.54
       BUFFER ___________________________________256/1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST
                                                 ASA
       TPI (TRACKS PER INCH) ____________________3000
       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7
       MAX FULL SEEK (ms) (read/write)___________19.4/20.4
       MTBF (power-on hours) ____________________500,000
       SHOCK (G's):
                operating (Read/Write) __________10
                nonoperating ____________________75
       ACOUSTICS (typ/max dBA) __________________/       
       POWER REQUIREMENTS: +12V START-UP (amps) _1.5
                           +12V TYPICAL (amps) __0.5
                           +5V START-UP (amps) __
                           +5V TYPICAL (amps) ___0.2
                           TYPICAL (watts) ______7
                           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):     1.00/25.4
                        Width  (inches/mm):     4.02/102.1
                        Depth  (inches/mm):     5.77/146.6
                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector
per track and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track