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Hard Drive: CONNER: CFS-1275A (12/1994) 1278MB 3.5"/SL ATA2 FAST




C F S - 1 2 7 5 A   ( 1 2 / 1 9 9 4 )    CONNER
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    3687| 2479| 1024|
Capacity form/unform  1278/      MB        Heads           6|   16|     |
Seek time   / track  15.0/ 3.0 ms          Sector/track     |   63|     |
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer            64 KB              Landing Zone     2479
Data transfer rate          MB/S int       Bytes/Sector      512
                     13.000 MB/S ext DMA
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 60
Power: sleep          1.0 W     Humidity     %         8 80    |      8 80
       standby        1.0 W     Altitude    km    -0.061  3.048| -0.061 12.192
       idle           3.9 W     Shock        g         5       |     75
       seek           5.6 W     Rotation   RPM      3600
       read/write     4.2 W     Acoustic   dBA        39
       spin-up            W     ECC        Bit
                                MTBF         h     250000
                                Warranty Month
Lift/Lock/Park     YES          Certificates

Layout

CONNER CFA/CFS-1275A QUICK REFERENCE GUIDE DEC. 94, REV. C

  +---------------------------------------------------------+
  | +-+                                                     |XXJ4
  | | |HDA                                                  |xx1 Power
  | | |Connector                                            |XXJ2
  | | |                                                     |XX
  | +-+                                                     |XXI
  |                                                         |XXN
  |                                                         |XXT
  |                                                         |XXE
  |                                                         |XXR
  |                                                         |XXF
  |                                                         |XXA
  |+-+C/D                                                   |XXC
  || |ATA/ISA                                               |XXE
  || |CS                                                    |  1
  || |                                                      |XXJ6
  |+-+                                                      |XX Power
  +---------------------------------------------------------+  1

Jumpers

CONNER CFA/CFS-1275A QUICK REFERENCE GUIDE DEC. 94, REV. C

Jumper Setting
==============

The C/D jumper is used to determine whether the drive is a master
(drive C) or a slave (drive D). The drive is configured as a master,
when jumpered, and a slave when not jumpered. The ATA/ISA jumper is
used when daisy-chaining two drives. This jumper may have to be
removed when this drive is used together with older (Pre-ATA) drives.

ATA/Not Cable Select ISA/Not Cable Select

   X X o  Master          X o o  Master
   X X o                  X o o

   o X o                  o o o
   o X o  Slave           o o o  Slave

ATA/Cable Select ISA/Cable Select

   o X X  Master          o o X  Master
   o X X                  o o X

   o X X                  o o X
   o X X  Slave           o o X  Slave

Install

CONNER CFA/CFS-1275A QUICK REFERENCE GUIDE DEC. 94, REV. C

Notes on Installation
=====================

 J6 Standard 4-pin Power Connector
 ---------------------------------
 +-----------------------
 | +-----J6-----+ +----   pin 1  +12V
 | | 1  2  3  4 | | 1     pin 2   GND
 | +------------+ +--     pin 3   GND
 +------------------      pin 4   +5V

 J4 Optional 3-pin Power Connector
 ---------------------------------
 +------------------------------
 | +---J4----+ +-------------   pin 1  +5 V
 | | 3  2  1 | | 40             pin 2  +12V
 | +---------+ +--------------  pin 3   GND
 +----------------------------------

Mounting Holes
--------------
Side: 6-32 UNC-2B .16 max. insertion
Bottom: 6-32 UNC-2B .22 max. insertion

1024 Cylinders may have to be entered into the CMOS parameters unless
the drive is being used with a device driver, BIOS, or OS capable of
supporting extended cylinders or LBA.













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