lotus

no previous pagepage up: Hard Drive Specs from BASF MAGNETICS
  
next page: Hard Drive: BASF MAGNETICS: 6183 8MB 5.25"/FH   MFM ST506

Hard Drive: BASF MAGNETICS: 6182 5MB 5.25"/FH MFM ST506




6 1 8 2    BASF MAGNETICS
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 5.25"/FH              Cylinders     153|     |     |
Capacity form/unform     5/    6 MB        Heads           4|     |     |
Seek time   / track  61.0/ 1.2 ms          Sector/track    9|     |     |
Controller           MFM / ST506           Precompensation    64
Cache/Buffer               KB              Landing Zone      173
Data transfer rate    0.625 MB/S int       Bytes/Sector     1024
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         4 50    |    -40 70
Power: sleep              W     Humidity     %        15 80    |      5 95
       standby            W     Altitude    km    -0.300  3.000| -0.300 14.000
       idle               W     Shock        g         3       |     10
       seek          33.0 W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h      11000
                                Warranty Month
Lift/Lock/Park     NO           Certificates     UL1950                       

Layout

BASF 6180 FIXED DISK DRIVE SPECIFICATION 80307-054, 11/82

  +---------------------------------------------------------+
  |                                                        20XX
  |                                                         |XX
  |                                                         |XX J2 B
  |                                                         |XX
  |                                                         |+-+
  |                                                         || |J5
  |                                                         |+-+
  |                                                        34XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX J1 A
  |                                                         |XX
  |                                          Terminator     |XX
  |                                          +------+(2F)   |XX
  |                                          +------+       |
  |                                   Option +------+(2G) JJ2XX J3 P
  |                                   Switches------+JJ1  x |XX
  +---------------------------------------------------------+  1

Jumpers

BASF 6180 FIXED DISK DRIVE SPECIFICATION 80307-054, 11/82

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

User Selectable Options
-----------------------
The BASF 6180 has 8 switches for the selection of different options:

   +------+
   | O--O |1   Drive Select 1
   | O--O |2   Drive Select 2
   | O--O |3   Drive Select 3
   | O--O |4   Drive Select 4
   | O--O |5   DRSEL
   | O--O |6   PWRON
   | O--O |7   REZERO
   | O--O |8   PERMSELD
   +------+

Four switches (1 - 4) are used to set the drive address. Drive
selection is performed when the DR SEL (Drive Select) signal
corresponding to the switch setting is active.

Two switches (5 and 6) are used to control the condition for the
spindle motor start. Depending on the switch setting the Spindle
Motor is started either with the first active going edge of the
corresponding DR SEL (Drive Select) signal or when DC power is
provided to the drive. Only one of two switches may be set.

Switch 7 is used to enable an automatic Rezero operation after the
Spindle Motor has reached full speed.

Switch 8 allows to select a drive permanently and independent of the
state of the DR SEL (Drive Select) signals.

Drive Selection
---------------
Each drive is assigned an address by setting the corresponding Drive
Select switch in the drive. Drive selection is done by activating
the corresponding DR SEL (Drive Select) signal through the control
unit. The selected drive responds the to all input signals and
enables its output drivers.

Alternatively the drive may be permanently selected through an option
switch if only one drive is connected to the controller.

Rezero
------
After Power On the drive's positioning system must be recalibrated
by performing a seek to Track Zero. This can be done either
automatically by the drive or by the controller through the interface
in the following way:

- select drive

- deactivate DIR IN (Direction In)

- provide STEP pulses until TRK 0 (Track 0) becomes active

Install

BASF 6180 FIXED DISK DRIVE SPECIFICATION 80307-054, 11/82

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

Drive mounting
--------------

   x horizontally    x        vertically
   +-x-------------x-+   +--+             +--+ +------------------+
   |   x         x   |   |  +-----+ +-----+  | |                  | x
   |      x    x     |   |  |     | |     |  | x+----------------+x
 +-+---------x-------+-+ |  |     | |     |  | ||x              x||
 +--------x-----x------+ |  |     | |     |  | ||  x          x  ||
       x          x      |  |     | |     |  | ||    x      x    ||
                         |  |     | |     |  | ||      x  x      ||
 +---------------------+ |  +-----+ +-----+  | ||       xx       ||
 +-+-----------------+-+ +--+             +--+ ||     x    x     ||
   |                 |                         ||   x        x   ||
   |                 |                         || x            x ||
   +-----------------+                         |x                x|
                                              x++----------------++x
                                                   UNACCEPTABLE!

The BASF 6180 may be operated only when the Face Place is in a
vertical plane. The maximum deviation is an angle of 13 degrees. From
the remaining four possible orientations only three are allowed for
operation. These are with the Read-Write-Control PCB either on the
left or right side or on top of the drive. Operation with the Read-
Write-Control PCB at the bottom of the drive is not allowed.

Housing
-------
The sealed module consists of an aluminium molded chassis and cover.
A closed loop air filtering system inside constantly cleans the air
particles which may be generated by head to disk interference. An
absolute breather filter for pressure equalization with the ambient
air pressure protects against environmental contamination.

Physical Interface
------------------
The physical interface between the BASF 6180 and the controller is
done via three or four connectors. One provides the control and
status lines through the "A"-cable which may be daisy chained.
The second one provides the read/write signals to the star connected
"B"-cable. The other connectors are used to supply DC power and for
optional frame grounding.

Interface Connector J1, "A"-cable
---------------------------------
The "A"-cable is connected to the PC-board via a 34 pin card edge
connector. Recommended mating connector is AMP P/N 88 373-3, or
equivalent.

The "A"-cable may be daisy-chained if more than one drive is
connected to the controller. The cable may be flat ribbon or
twisted pair with a maximum total length of 6m (20 ft).

Interface Connector J2, "B"-cable
---------------------------------
The "B"-cable is connected to the PC-board via a 20 pin card edge
connector. Recommended mating connector is AMP P/N 88 373-6, or
equivalent.

The "B"-cable must be radially connected if more than one drive is
connected to the controller. The cable may be flat ribbon or
twisted pair with a maximum total length of 6m (20 ft). The cable
impedance should be around 105 Ohms.

Power Connector J3
------------------
The DC-power connector is a four pin connector. Recommended mating
connector is AMP P/N 1-480424-0 with pins 350078-4, or equivalent.

 Pin 1  +12 VDC
 Pin 2  GND 12V
 Pin 3  GND 5V
 Pin 4  + 5 VDC

Frame Ground Connector J4
-------------------------
The frame of the BASF 6180 may be connected to the system ground
through a separate cable connected to J4. Normally the frame of the
BASF 6180 is connected to logic ground. If JJ4 is used, then the
solder jumper wire JJ2 at location 1G of the Read-Write-Control PCB
should be removed in order to avoid ground loops.

Recommended mating connector for J4 is AMP P/N 62187-1 or equivalent.

Features

BASF 6180 FIXED DISK DRIVE SPECIFICATION 80307-054, 11/82

General Description
-------------------
The BASF 6180 is a family of 5.25" Fixed Disk Drives. The three
models of the family offer capacities of 6.38 MBytes (BASF 6182),
9.57 MBytes (BASF 6183), and 14.35 MBytes (BASF 6184). The BASF 6180
stores the information on up to 3 non-removable disks and up to 230
cylinders.

The BASF 6180 uses the industry standard interface and dimensions to
ease system integration. Up to four BASF 6180 may be connected to
one controller. For systems requiring removable media it is re-
commended to use the BASF 6180 in combination with BASF Mini Floppy
Disk Drives, which offer a capacity of up to 1 MByte.

 Seek Time
 ---------
       +----------------------------------+--------+
       |                                  | 6180   |
       +----------------------------------+--------+
       |Track-to-Track         msec. typ. |   1.2  |
       +----------------------------------+--------+
       |Average                msec. typ. |  61    |
       |                       msec. max. | 182    |
       +----------------------------------+--------+
       |Latency                msec. avg. |   8.3  |
       +----------------------------------+--------+

Disk Media Defects
------------------
Disk drives are allowed to have the following number of media defects
when leaving the factory:

BASF 6182 7 max.
BASF 6183 10 max.
BASF 6184 15 max.

Cylinder zero is delivered error free.













TOP
no previous pagepage up: Hard Drive Specs from BASF MAGNETICS
  
next page: Hard Drive: BASF MAGNETICS: 6183 8MB 5.25"/FH   MFM ST506