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Legacy

Capacity:
Speed:
Average Seek Time:
 Cylinders:
Heads:
Sectors:

42.82 MB
3000 rpm
28 ms
980
5
17


Installation Guide | Product Manual

 

Odd characters? Click here for help. A version of this specification with the linedraw characters approximated by text is available by clicking here.

                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1993



ST-352A/X AT/XT Interface

    J2 12-pin (located
        on side, near rear)
    
          
        1  3  5  7  9  11
(front)             (back)
                  
 24681012
                                                                  4-pin DC
         
                                 3-pin DC   AT/XT Interface       Power
                                 Power      connector            1234Ŀ
                                123͸ ͸  0 0 0 0 
     Ŀ     0 0 0  :::::::::::::::::::1 \12GG5/
    J2 Jumper Configurations   512GPWA
           (12 pin version) 
      note: some jumpers are VERTICAL, others are HORIZONTAL
  ͸
   Jumper           Pin     AT Single   AT Master  AT Slave    XT  
  ͵
   Master/Slave     1-2        X           X          0        (3) 
  Ĵ
   Slave Present    3-4        0           X          0        (3) 
  Ĵ
   Active LED       5-6        X           X          0 (2)    X   
  Ĵ
   Slave            5-7        0           0          X (2)    0   
                                                                   
  ͹
   XT Mode          7-8                                          X   
  ͹                                     Ķ
   XT Only: 40      1-2                                          X   
    Mbyte Cap.      ST351                                            
  ͹           12 pin version            Ķ
   XT Only: 30      3-4                                          X   
    Mbyte Cap.      ST351                                            
  ͹                                     Ķ
   XT Only: 20      1-2 &                                        X   
    Mbyte Cap.      3-4                                              
  ͹
   Factory Test     7-9             FACTORY USE ONLY                  
  Ĵ
   Bus Reset (1)    10-12      0           0          0        0/X 
    High                                                           
  Ĵ
   Bus Reset (1)    11-12      X           X          X        X/0 
    Low  
     X = Jumpered; 0 = No Jumper

        (1) Bus reset active level. System dependent. A jumper must be
            installed on either Bus Reset Hi or Bus Reset Low; the
            drive will not function if neither set of pins is
            jumpered.

        (2) HSP/Assert "/DASP" signal: pin 39 on 40-pin AT/AT
            Interface connector. The Host Slave Present jumper and the
            Active LED jumper are mutually exclusive.

        (3) XT only. These jumpers are used to set the drive type
            information to be returned by the drive via the Drive
            Configuration register (I/O port 2) or the XT Interface.


                        ST - 352A/X

       UNFORMATTED CAPACITY (MB) ________________51
       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.82
       AVERAGE SECTORS PER TRACK ________________
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________
       CYLINDERS _(Physical/Logical)_____________xx/980
       HEADS ____________________________________2/5
       DISCS ____________________________________1
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL 2,7 (ZBR)
       INTERNAL TRANSFER RATE (mbits/sec) _______10/12/14
       SPINDLE SPEED (RPM) ______________________3,048
       AVERAGE LATENCY (mSEC) ___________________9.84
       INTERFACE ________________________________AT/XT
       SECTORS PER DRIVE ________________________83,640
       TPI (TRACKS PER INCH) ____________________1290
       BPI (BITS PER INCH) ______________________27152/28155/28922
       AVERAGE ACCESS (ms) ______________________28
       SINGLE TRACK SEEK (ms) ___________________7
       MAX FULL SEEK (ms) _______________________65
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _0.8
                           +12V TYPICAL (amps) __0.10
                           +5V TYPICAL (amps) ___0.11
                           TYPICAL (watts) ______2.0
                           MAXIMUM (watts) ______
       BUFFERED STEP PULSE RATE (micro sec) _____
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl)________________________AUTO PARK
       IBM AT DRIVE TYPE ________________________40, 44*

Possible translation:   980 cyl, 5 heads, 17 sectors = 42,649,600
                        977 cyl, 5 heads, 17 sectors = 42,519,040

Note: A "custom" or "user-defined" CMOS drivetype  may ask for a
numerical value for the Write Precompensation cylinder and for the
Landing Zone cylinder.  A basic rule-of-thumb for drive models that do
not require the old Write Precomp technique or a Landing Zone because
they are Auto-Parking is to add 1 to the cylinder value being used. As
an example: If cylinders equaled 820, then both Write Precomp and
Landing Zone would be entered as 821. Some BIOS will convert this to
65535 or -1, which are functionally equivalent to "none (not used)".

 * CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE"
DRIVE TYPE AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory for AT installations.

Since a User-definable or Custom translation geometry may be used, it
is imperative that the values be written down and kept with your
permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product 
offerings or specifications. (10/7/93)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/at/st352ax.txt.


 



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