Hard Drive: CONNER: CP-2040 42MB 2.5"/SSL SCSI1 SE
C P - 2 0 4 0 CONNER
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 2.5"/SUPERSLIMLINE Cylinders 548| | |
Capacity form/unform 42/ MB Heads 4| | |
Seek time / track 19.0/ 5.0 ms Sector/track 38| | |
Controller SCSI1 SINGLE-ENDED Precompensation
Cache/Buffer 32 KB LOOK-AHEAD Landing Zone
Data transfer rate 1.500 MB/S int Bytes/Sector 512
4.500 MB/S ext
Recording method RLL 2/7 operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 60
Power: sleep W Humidity % 8 80 | 8 80
standby 0.4 W Altitude km -0.061 3.048| 12.192
idle 1.3 W Shock g 10 | 100
seek 2.8 W Rotation RPM 3486
read/write 2.8 W Acoustic dBA 34
spin-up W ECC Bit 88,REED SOLOMON
MTBF h 50000
Warranty Month
Lift/Lock/Park YES Certificates CSA,IEC380,IEC435,IEC950,T...
Layout
CONNER CP2040 PRODUCT MANUAL REV.I, 12/1991
+---------------------------------------------------------+ |+-+ | || | |XX || | E2 |XX || | E1++E3 |XX |+-+ ++++ |XX | |XX | |XX | |XX J2 | |XX | |XX | |XX | |XX | |XX1 | |xx | |XX J3 | |XX +---------------------------------------------------------+ 1
CONNECTOR PIN ASSIGNMENTS
PIN#
+-------+
J3 RSVD | 1 2 | RSVD
RSVD | 3 4 | RSVD
E1 | 5 6 | E2
E3 | 7 8 | -LED
NC |key key| NC
J2 +5V LOGIC | 1 2 | +5V LOGIC
+5V RET | 3 4 | +5V RET
GND | 5 6 | -DB0
GND | 7 8 | -DB1
GND | 9 10 | -DB2
GND |11 12 | -DB3
GND |13 14 | -DB4
GND |15 16 | -DB5
(KEY) NC |17 18 | -DB6
GND |19 20 | -DB7
GND |21 22 | -DBP
GND |23 24 | TERM PWR
-ATN |25 26 | -BSY
GND |27 28 | -ACK
-RST |29 30 | -MSG
GND |31 32 | -SEL
-I/O |33 34 | -C/D
GND |35 36 | -REQ
+5V RET |37 38 | +5V RET
+5V MOTOR |39 40 | +5V MOTOR
+-------+
Jumpers
CONNER CP2040 PRODUCT MANUAL REV. I, 12/1991
Jumper Setting
==============
Customer Options
----------------
Three jumpers, E1, E2 and E3 are used to select the drive's SCSI ID.
+----------+-----------+ | SCSI ID | Jumpers | | |E3 |E2 |E1 | +----------+---+---+---+ | 0 |OUT|OUT|OUT| | 1 |OUT|OUT|IN | | 2 |OUT|IN |OUT| | 3 |OUT|IN |IN | | 4 |IN |OUT|OUT| | 5 |IN |OUT|IN | | 6 |IN |IN |OUT| | 7 |IN |IN |IN | +----------+---+---+---+
In addition, E1, E2 and E3 are supplied to Interface connector J3 for external SCSI ID selection. +----------+--------------+ | SCSI ID | Pins | | | E3 | E2 | E1 | +----------+----+----+----+ | 0 |OPEN|OPEN|OPEN| | 1 |OPEN|OPEN|GND | | 2 |OPEN|GND |OPEN| | 3 |OPEN|GND |GND | | 4 |GND |OPEN|OPEN| | 5 |GND |OPEN|GND | | 6 |GND |GND |OPEN| | 7 |GND |GND |GND | +----------+----+----+----+
An external light emitting diode (LED) may be attached to the drive. The customer must supply the LED, a current limiting resistor and a +5 VOLT power source. The connection to the drive is made as follows:
-+---++ +---+
J3-8(-LED)----------+LED+-----+RCL+-------> +5V DC
+---+ +---+
Install
CONNER CP2040 PRODUCT MANUAL REV. I, 12/1991
Notes on Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Recommended Mounting Configuration
----------------------------------
The drive is designed to be used in applications where the unit may
experience shock and vibrations at greater levels than larger and
heavier disk drives.
The design features which allow greater shock tolerance are the use
of rugged heads and media, a dedicated landing zone, closed loop
servo positioning and specially designed motor and actuator
assemblies.
Four (4) side or bottom mounting points are provided to the customer.
The drive is mounted using 3mm x 0.5mm thread screws. The screw
insertion depth into the side or bottom mounting points should not
exceed 4mm. The system integrator shoukd allow ventilation to the
drive to ensure reliable drive operation over the operating
temperature range. The drive may be mounted in any attitude.
For additional vibration isolation, an external suspension system may
be used.
Cabling
-------
Connector J2 carries the SCSI interface signals and the power
connections required to operate the drive. Connector J3 carries
signals for external SCSI ID configuration and LED illumination.
SCSI Termination ---------------- The drive uses 1k ohm pull up resistors on all eighteen SCSI bus signals. These resistors are supplied +5V from the initiator through the TERMPWR line at J2-24. The resistors are NOT removable from the drive.
SCSI Bus Attachment
-------------------
A single drive may be daisy-chained with other SCSI targets on a
SCSI Bus if the drive is the last physical unit on the BUS and the
cable length specification is not exceeded.
Two or more drives cannot be daisy-chained on a SCSI Bus as all
drives contain termination resistors. This may result in reflections
on the cable which can cause communication errors between the
initiator and the targets on the SCSI Bus.
Cable Requirements
------------------
A 40-conductor cable no more than 18" in length with at least 28 AWG
wire size and a characteristic impedance of 90 to 140 ohms (132 ohms
nominal) is required. A 50-conductor cable may be used to connect to
both the drive connector (J2) and the option connector (J3).
Connector Requirements
----------------------
The drive connector (J2) is a 40-position header which consists of 2
rows of 20 male pins on 2mm centers. The option connector (J3) is an
8-position header which consists of 2 rows of 4 male pins on 2mm
centers.
Features
CONNER CP2040 PRODUCT MANUAL REV. I, 12/1991
Key Features
------------
The CP2040 is a high performance 2.5 inch low-profile (.75") offering
42.65 megabytes formatted capacity disk drive with 17ms average seek
time typical which is designed with the SCSI interface. The drive
features a low 5V power requirement and high shock resistance,
enabling battery operation in portable environments.
- 2.5" Form factor - Single 5 Volt supply - Low power requirements - 7.0 oz unit weight - High performance rotary voice coil actuator with embedded servo system - Single connector for power & interface - Two of seven run length limited code - High shock resistance - Internal air filtration system - Sealed HDA - Automatic actuator latch over data-free landing zone during shut- down mode or power down - Microprocessor-controlled diagnostic routines that are automatic- ally executed at start-up - Automatic error correction and retries - Block size 512 bytes - SCSI interface - 1:1 Interleave - Look Ahead Read Capability - 32K Buffer
Seek Time
---------
Track to Track: 5.0 ms
Average: 19.0 ms
Maximum: 40.0 ms
Average Latency: 8.7 ms
The average seek time is determined by averaging the seek time for a
minimum of 1000 seeks of random length over the surface of the disk.
Defect Management
-----------------
The CP2040 contains a total of 2192 spare sectors, one at the end of
each track. The CP2040 has 2050 or more spare sectors available to
the user for defect skipping over the life of the drive has 3150 or
more spare sectors available to the user for defect skipping over the
life of the drive.
As shipped from the factory, the drive is allowed to have up to 140
defective sectors. Of theses, a maximum of 120 are skipped out and
the sector numbering is slipped to use the spare sector at the end of
the same track.
No more than 20 of the tracks can have two defects. The first defect
(one of the 120) is handled as described above. The second defect is
assigned to the nearest spare sector on an adjcent track.
Functional Description
----------------------
The drive contains all necessary mechanical and electronic parts to
interpret control signals, position the recording heads over the
desired track, read and write data, and provide a contaminant free
environment for the heads and disks.
Read/Write and Control Electronics
----------------------------------
One integrated circuit is mounted within the sealed enclosure in
close proximity to the read/write heads. Its function is to provide
one of four head selection, read preamplification, and write data
circuitry.
The single microprocessor controlled circuit card provides the re-
maining electronic functions which include:
- Read/Write Circuitry
- Rotary Actuator Control
- Interface Control
- Spin Speed Control
- Dynamic Braking
- Power Management
At power down or upon entering the SHUTDOWN MODE, the heads are
automatically retracted to the inner diameter of the disk and are
latched and parked on a landing zone that is inside the data tracks.
Drive Mechanism
---------------
A brushless DC direct drive motor rotates the spindle at 3486 RPM.
The motor/spindle assembly is balanced to provide minimal mechanical
runout to the disks and to reduce vibration of the HDA. A dynamic
brake is used to provide a fast stop to the spindle motor when power
is removed, or upon entering the SHUTDOWN MODE.
Air Filtration System
---------------------
Within the sealed enclosure, a .3 micron filter provides a clean
environment to the heads and disks.
Head Positioning Mechanism
--------------------------
The four read/write heads are supported by a mechanism coupled to the
voice coil actuator.
Read/Write Heads and Disks
--------------------------
Data are recorded on two 65mm diameter disks through four micro-
miniature thin film heads.
Error Detection and Correction
------------------------------
The drive uses an 88-bit Reed-Solomon code to perform error detection
and correction. The error correction polynomial is capable of
correcting single bursts of 11 bits or less on-the-fly in 1/2 sector
time without microprocessor intervention, thus with no performance
degradation. An error burst with a maximum of 22 bits or two error
bursts of up to 11 bits each per 512 byte block can also be
corrected.
Pin Description --------------- The drive use open collector drivers. All assigned signals are terminated with 1K ohm resistor to +5 volts supplied to the drive through the TERMPWR line (J2-24). The termination resistors are NOT removeable.
Output Characteristics
----------------------
Each signal driven by the drive has the following output
characteristics when measured at the drive connector:
Signal assertion: 0.0 VDC to 0.4 VDC
Minimum driver output capability: 48 ma (sinking) at 0.5 VDC
Signal negation 2.5 VDC to 5.25 VDC
Input Characteristics
---------------------
Each signal received by the drive must have the following input
characteristics when measured at the drive connector:
Signal assertion: 0.0 VDC to 0.8 VDC
Minimum total input load: -0.4ma (sinking) at 0.4 VDC
Signal false 2.0 VDC to 5.25 VDC
Logical Unit Number
-------------------
The drive has only one logical unit; therefore, the Logical Unit
Number (LUN) must be set to zero.
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