Hard Drive: SINGAPORE: 3243 D 4351MB 3.5"/HH SCSI2 DIFF
3 2 4 3 D SINGAPORE
Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders 4097| | |
Capacity form/unform 4351/ 5071 MB Heads 19| | |
Seek time / track 8.5/ 1.5 ms Sector/track | | |
Controller SCSI2 DI/FAST Precompensation
Cache/Buffer 512 KB SEGMENTED Landing Zone
Data transfer rate MB/S int Bytes/Sector 512
10.000 MB/S ext
Recording method RLL operating | non-operating
-------------+--------------
Supply voltage 5/12 V Temperature *C 5 50 | -40 65
Power: sleep W Humidity % 10 90 | 10 95
standby W Altitude km -0.061 3.048| -0.305 15.240
idle 14.0 W Shock g 5 | 60
seek 17.0 W Rotation RPM 7200
read/write W Acoustic dBA 37
spin-up W ECC Bit 126,REED SOLOMON
MTBF h 1000000
Warranty Month 60
Lift/Lock/Park YES Certificates
Layout
MICROPL. 3243 CAPRICORN PRELIMINARY PRODUCT DESCRIPTION 138008 REV. 1
+---------------------------------------------------------+ | W2 |XX | W1+-+ |XX | W3| | |XX | W4+-+ |XX | |XX J1 | +-+ID0 |XX | | |ID1 |XX ++ LED | |ID2 |XX ++ +-+RESERVED |XX XX 27 |XX XX |XX XX |XX XX Option Jumper |XX XX Block |XX1 XX COMPONENT SIDE |XX XX NO. 138032 |XX J1A | 1 |XX +---------------------------------------------------------+ 1
Jumpers
MICROPL. 3243 CAPRICORN PRELIMINARY PRODUCT DESCRIPTION 138008 REV. 1
Jumper Setting
==============
x = Factory default
Option Jumper Block
-------------------
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
LED+-+ - |27|25|23|21|19|17|15|13|11|09|07|05|03|01|
---+-+-----+ | | | | | | | | | | | | | +-------
+ |28|26|24|22|20|18|16|14|12|10|08|06|04|02|
++-++-++-++-++-++-++-++-++-++-++-++-++-++-+
RESERVED --+ | | | | | | | | | | | | +-- Remote LED
Key 2 NC -----+ | | | | | | | | | | +----- ID0
SSYNC --------+ | | | | | | | | +-------- ID1
MSYNC -----------+ | | | | | | +----------- ID2
Key 1 NC --------------+ | | | | +-------------- RESERVED
PTY -----------------+ | | +----------------- SP0
WP --------------------+ +-------------------- SP1
Option Jumper Block Pin Assignments ----------------------------------- +---+---------------+---+--------------+ |Pin| Signal Name |Pin|Signal Name | +---+---------------+---+--------------+ | 1 |Remote LED | 2 |Remote LED +5V| +---+---------------+---+--------------+ | 3 |GROUND | 4 |ID0 | +---+---------------+---+--------------+ | 5 |GROUND | 6 |ID1 | +---+---------------+---+--------------+ | 7 |GROUND | 8 |ID2 | +---+---------------+---+--------------+ | 9 |GROUND |10 |RESERVED | +---+---------------+---+--------------+ |11 |GROUND |12 |SP0 | +---+---------------+---+--------------+ |13 |GROUND |14 |SP1 | +---+---------------+---+--------------+ |15 |GROUND |16 |WP | +---+---------------+---+--------------+ |17 |GROUND |18 |PTY | +---+---------------+---+--------------+ |19 |N/C |20 |KEY 1 | +---+---------------+---+--------------+ |21 |GROUND |22 |MSYNC | +---+---------------+---+--------------+ |23 |GROUND |24 |SSYNC | +---+---------------+---+--------------+ |25 |N/C |26 |KEY 2 | +---+---------------+---+--------------+ |27 |RESERVED |28 |RESERVED | +---+---------------+---+--------------+
Single-Ended Configuration Options
----------------------------------
SCSI ID
-------
NOTE:
There are two identical groups of address jumpers on the Device
Electronics board; use either group for address selection but not
both at the same time.
+----------+-----------------------+ Up to eight devices (the host | SCSI ID | Jumpers | and seven targets) can be | | ID2 | ID1 | ID0 | attached to the SCSI Bus. +----------+-------+-------+-------+ | 0 | OPEN | OPEN | OPEN | ID jumpers ID0, ID1 and ID2 | 1 | OPEN | OPEN | CLOSED| are used to assign one of | 2 | OPEN | CLOSED| OPEN | eight SCSI ID bits (0-7) to | 3 | OPEN | CLOSED| CLOSED| the drive. | 4 | CLOSED| OPEN | OPEN | | 5 | CLOSED| OPEN | CLOSED| In multiple-device systems, | 6 | CLOSED| CLOSED| OPEN | each drive must have its own | x 7 | CLOSED| CLOSED| CLOSED| unique ID. +----------+-------+-------+-------+
SP0/SP1 Spindle Control Option
-------------------------------
SP0 CLOSED
SP1 OPEN Spindle motor starts when START UNIT command is
received.
SP0 OPEN (default)
SP1 OPEN Spindle motor starts at power-on.
SP0/SP1 Spindle Delay Option
-----------------------------
SP1 CLOSED
SP0 OPEN Spindle start-up is delayed based on SCSI ID (12
seconds per ID).
SP1 OPEN (default)
SP0 OPEN Spindle motor starts at power on.
WP Write Protect Option
------------------------
WP CLOSED Drive is write protected.
WP OPEN Drive is not write protected. (default)
PTY Bus Parity Check Option
----------------------------
PTY CLOSED Drive neither generates nor detects parity.
OPEN Drive generates parity and has parity detection
enabled. (default)
W1/W2/W3 Bus Termination Power Option
--------------------------------------
+-----+ +-----+ +-----+ +-----+
W1 xxx | | o X W2 | o o | | o o |
| o o | | o x | | xxx W3 | o o |
| o o | | o o | | o o | | xxx W4
+-----+ +-----+ +-----+ +-----+
W1 CLOSED (default)
Drive provides terminator power.
W2 CLOSED
Host system provides terminator power (via J1 pin 26).
W3 CLOSED
Drive provides terminator power (via J1, pin 26) to the BUS.
W4 Interface Termination ------------------------ W4 INSTALLED Drive is not terminated x OMITTED Drive is terminated.
Spindle Synchronization
-----------------------
The Rotational Position Locking field (MODE SELECT command, Page Code
04h) is used to specify spindle synchronization operation.
Unsynchronized: If the drive is set to Unsynchronized (RPL = 00b), it
ignores the SLAVE SYNC signal.
Slave: If the drive is set to Slave (RPL = 01b), it does not generate
the MASTER SYNC signal or the SLAVE SYNC signal but synchronizes its
index to the SLAVE SYNC signal supplied by an external source.
Master: If the drive is set to Master (RPL = 10b), it generates the
SLAVE SYNC output signal for use directly by the slave drives.
Master Control: If the drive is set to Master Control (RPL = 11b), it
generates the MASTER SYNC signal. This output is used by the
controller to generate the SLAVE SYNC signal for the slaves.
Install
MICROPL. 3243 CAPRICORN PRELIMINARY PRODUCT DESCRIPTION 138008 REV. 1
Notes on installation
=====================
Recommended mounting orientation
--------------------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
| +-----+ +-----+ |
+--+ +--+
Dimensions and Mounting
-----------------------
The drive uses industry-standard mounting For 3 1/2-inch full-height
Winchester disk drives.
Recommended orientation is vertical on either side, or horizontal
with the Device Electronics board down; other mounting orientations
may be used.
No matter what mounting orientation is used, Micropolis specifies
that the maximum HDA casting temperature not exceed 60*C (140*F).
Mounting Screws
---------------
3 per side 6-32 UNC-2B
4 on bottom 6-32 UNC-2B
Caution: The mounting screws must be selected so that they do not
penetrate the bottom mounting holes by more than 0.20 inches or the
side mounting holes by more than 0.156 inches.
Screws that are too long will short to PCBA.
SINGLE-ENDED Interface Electrical Characteristics
-------------------------------------------------
Interface control and status signals are digital (open collector TTL)
using industry-standard transmitters and receivers which provide
a terminated, single-ended system.
For active termination, the assigned signals are terminated with 110 ohms to +2.85V (nominal). For passive termination, the assigned signals are terminated with 220 ohms to +5V (nominal) and 330 ohms to ground. All signals use open-collector or tri-state drivers.
Single-ended drivers and receivers allow a maximum cable length of
six meters (primarily for connection within a cabinet).
Signal transmission requires a single 50-conductor (flat or
twisted-pair) cable. A characteristic impedance of 100 ( 10%) ohms
is recommended.
a. Input Characteristics
Each of the drive's signal receivers has the following
characteristics when measured at the interface connector.
1) Low-level input voltage = (Signal true) 0.0 VDC to 0.8 VDC
2) High-level input voltage = (Signal false) 2.0 VDC to 5.25 VDC
3) Low-level input current = -0.4 milliamps at 0.5 VDC
4) High-level input current = 0.1 milliamps at 2.7 VDC
5) Minimum input hysteresis = 0.2 VDC
6) Maximum input capacitance = 25 pF
b. Output Characteristics
Each driven signal has the following characteristics when
measured at the interface connector.
1) Low-level input voltage = 0.0 VDC to 0.5 VDC (signal assertion)
2) High-level input voltage = 2.5 VDC to 5.25 VDC (signal negation)
3) Minimum driver output capability = 48 milliamps (sink) at 0.5VDC
c. Terminator Power (TERMPWR at Pin 26)
Terminator Power has the following requirements:
V(TERM) = 4.25 VDC to 5.25 VDC
800 milliamps minimum source drive capability, with 1.0 amp recommended current limiting (e.g., a fuse).
1.0-milliamp maximum bus loading (except for the purposes of providing power to an internal terminator).
Keyed connectors are provided to prevent accidental grounding or
misconnection of terminator power.
Signal Connector J1
-------------------
J1 is a 50-pin connector. The signals on J1 include the 8-bit SCSI
bus and various control and handshaking lines.
Recommended Cable: 3M Scotchflex 3365/50 or equivalent.
Mating connector: 3M P/N 3425-3000 or equivalent.
J1A Power Connector ------------------- J1A is a 4-pin connector used to supply +5V and +12V to the drive.
Recommended mating connector: AMP 1-480424-0 or equivalent
Pins: AMP 350078-4
Suggested wire size: 18 AWG (minimum) for all pins.
pin 1 +12 VDC pin 2 +12 Volts Return pin 3 + 5 Volts Return pin 4 + 5 VDC
2-pin Connectors (Remote LED, Spindle Sync, etc.)
-------------------------------------------------
Recommended mating connectors: Dupont 69305-002 or equivalent
Pins: Dupont 77138-001
Suggested wire size: 26-30 AWG for all pins
SCSI ID Connector (6-pin)
-------------------------
Recommended mating connector: Dupont 90311-006 or equivalent
Pins: Dupont 77138-001
Suggested wire size: 26-30 AWG for all pins
Multiple-Drive Systems
----------------------
Drive #1
+------HOST------+ +-----------------+
| +-----------+ +--+-SCSI-BUS-----+ J1 |
| |Terminators| | | +------+ J1A |
| +-----------+ | | | +-----------------+
| | | |
+----------------+ | | Drive #2
| | +-----------------+
+-------+------+ J1 |
| o------+ J1A |
| | +-----------------+
| |
| | Drive #3
| | +-----------------+
+-------+------+ J1 |
| o------+ J1A |
| | +-----------------+
| |
| | Drive #4
| | +--------------+--+
+-------+------+ J1 |T |
o------+ J1A +--+
---DC-VOLTAGES-----+ +-----------------+
T = TERMINATORS
Terminators are installed ONLY in the last physical drive in the
control chain.
Temperature Measurement
-----------------------
Micropolis specifies the maximum HDA casting temperature to be 60*C
(140*F). Not exceeding this temperature will ensure that the head-to-
media interface never exceeds its temperature limit.
If the HDA casting temperature measurement cannot be made, the
ambient air temperature around the drive must be kept at or below
50*C (122*F).
Features
MICROPL. 3243 CAPRICORN PRELIMINARY PRODUCT DESCRIPTION 138008 REV. 1
Description
-----------
This Product Description describes the Micropolis model 3243 (8-bit,
single-ended) Rigid Disk Drive. The drive is a member of the
CAPRICORN family of high-performance, 3 1/2-inch, full-height Rigid
Disk Drives.
These drive provides OEMs with random-access, high-speed, data
storage and meet the needs of diverse applications environments.
The drive is compatible with the "ANSI CCS" version and the "SCSI-2"
version of the industry-standard Small Computer System Interface
(SCSI) specification.
3243 AV
-------
The 3243 is available in an AV version. AV drives are specifically
designed for enhanced digital audio and video performance in
applications such as multi-media, desktop publishing, digital video
editing, and video servers. AV drives provide:
- Predictable, sustained data rates, allowing reduction in size of system buffers needed thereby reducing system cost.
- Fast command processing for reduced overhead.
- Advanced cache management for improved overall performance.
- Fast ECC which ensures maximum data integrity without interrupting the data stream.
DIFFERENTIAL INTERFACE IS OPTIONAL.
Some Features of the Drive -------------------------- - Positive media protection is achieved during spin down (due to a STOP UNIT command or power off) by automatically retracting and locking the positioner in a data-free landing zone.
- N-Segment Read-Ahead algorithm improves read performance by allowing many accesses to be serviced from the cache buffer (512K or optional 2MB).
- Optional, Write-Behind Caching provides dramatic improvement in write performance by appending multiple write commands per disk revolution.
- In-Line Defect Management (sector slipping) provides maximum throughput.
- Data Integrity is ensured with CRC through the buffer, 126-bit Reed-Solomon ECC on-the-fly, and automatic retries using servo and data strobe offsets.
Media Defects
-------------
Media defects are physical characteristics of the media which result
in repetitive read errors when a functional drive is operated within
specified operating conditions.
At the time of manufacture, a media test system evaluates every
drive and identifies each media defect location. The defective
areas are identified by head address (HD), cylinder address (CYL),
and number of clocks from Index (CFI).
The list of manufacturer-found defects is stored on the drive in a
reserved, write-protected area accessible by the SCSI controller.
This list is known as the MDL (Manufacturers Defect List) or PList
(Primary Defect List).
A printed listing of the defects is also shipped with each drive. The
entries it contains can be mapped out (reassigned) automatically at
format control parameter bits.
Seek Time
---------
| 3243 |
----------------------------------+--------+
Track-to-Track read msec. typ. | 1 |
write msec. typ. | 2 |
Average msec. typ. | 8.5 |
msec. max. | 20 |
Latency msec. avg. | 4.17 |
----------------------------------+--------+
Recording Media
---------------
Aluminium disks, each 95 millimeters (3 1/2 inches) in diameter, are
mounted on the spindle assembly. The recording surface on each disk
is a thin coating of magnetic material, with a carbon over-coat to
protect that surface.
Air Filtration System
---------------------
The drives are designed to provide contamination control within the
HDA throughout the life of the drive with zero maintenance.
Air within the HDA is continuously recirculated and filtered through
a high efficiency filter. Air is ducted to and from the filter for
maximum pressure recovery and filter efficiency. Air within the HDA
may only enter the drive through a high-efficiency breather filter.
Braking
-------
The heads contact an area of the disk surface which is not used for
data storage when the disk are not spinning and during start and
stop cycles. Dynamic braking is used to stop the spindle quickly.
Adjustments and Maintenance
---------------------------
The drive requires no adjustments or periodic maintenance;
additionally, no mechanical adjustments are required to prepare a
system for handling or shipment.
Field-Replaceable Components
----------------------------
The concept of repair by replacement of complete functional
components is utilized in the drive, resulting in an MTTR of less
than 15 minutes.
MICROPOLIS AV SERIES
--------------------
Micropolis AV Series disk drives are engineered specifically for
multi-media, high-end graphics, and digital video/audio applications.
With advanced cache management, internal housekeeping improvements,
and enhanced error handling, AV drives provide the highest minimum
sustained data rate in their class. AV drives are designed to provide
a maximum sustained uninterrupted data rate. Unlike data processing
drives, AV drives guarantee a "worst case" data rate performance.
This means that with the buffer empty, the maximum access time
(including error handling) is no more than 30 milliseconds.
My Books
