C P - 2 0 2 0 CONNER NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 2.5"/SUPERSLIMLINE Cylinders 643| | | Capacity form/unform 21/ MB Heads 2| | | Seek time / track 23.0/ 5.0 ms Sector/track 32| | | Controller SCSI1 SINGLE-ENDED Precompensation Cache/Buffer 8 KB LOOK-AHEAD Landing Zone Data transfer rate 1.250 MB/S int Bytes/Sector 512 3.000 MB/S ext SYNC Recording method RLL 2/7 operating | non-operating -------------+-------------- Supply voltage 5 V Temperature *C 5 55 | -40 60 Power: sleep 0.3 W Humidity % 8 80 | 8 80 standby 0.5 W Altitude km -0.061 3.050| 12.200 idle 1.5 W Shock g 10 | 100 seek 3.0 W Rotation RPM 3433 read/write 3.0 W Acoustic dBA 34 spin-up W ECC Bit 64 MTBF h 100000 Warranty Month Lift/Lock/Park YES Certificates CSA,IEC380,IEC435,IEC950,U... ********************************************************************** L A Y O U T ********************************************************************** CONNER CP2020 PRODUCT MANUAL P/N 00501-004 REV. I, SEPTEMBER 1990 +---------------------------------------------------------+ | | | |XX | |XX | |XX | |XX | |XX | |XX J2 | |XX | |XX | |XX | |XX | |XX | 1XX | E1 E2 E3 |xx | * * * |xx J3 | * * * 1 +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** CONNER CP2020 PRODUCT MANUAL P/N 00501-004 REV. I, SEPTEMBER 1990 Jumper Setting ============== Connector Pin Assignments ------------------------- +----------------+----+ | Drive +----+ | +----+ | RSVD ------- 1 |1 o| 2 ----- RSVD | RSVD ------- 3 |o o| 4 ----- RSVD J3 | E1 ------- 5 |o o| 6 ----- E2 | E3 ------- 7 |o o| 8 ----- -LED | NC ----- KEY |o o| KEY --- NC | +5V LOGIC -- 1 |1 o| 2 ----- +5V LOGIC | +5V RET ---- 3 |o o| 4 ----- +5V RET | GND ------- 5 |o o| 6 ----- -DB0 | GND ------- 7 |o o| 8 ----- -DB1 | GND ------- 9 |o o| 10 ---- -DB2 | GND ------ 11 |o o| 12 ---- -DB3 J2 | GND ------ 13 |o o| 14 ---- -DB4 | GND ------ 15 |o o| 16 ---- -DB5 | (KEY) NC -- 17 |o o| 18 ---- -DB6 | GND ------ 19 |o o| 20 ---- -DB7 | GND ------ 21 |o o| 22 ---- -DBP | GND ------ 23 |o o| 24 ---- TERM PWR | -ATN ------ 25 |o o| 26 ---- -BSY | GND ------ 27 |o o| 28 ---- -ACK | -RST ------ 29 |o o| 30 ---- -MSG | GND ------ 31 |o o| 32 ---- -SEL | -I/O ------ 33 |o o| 34 ---- -C/D | GND ------ 35 |o o| 36 ---- -REQ | +5V RET --- 37 |o o| 38 ---- +5V RET | +5V MOTOR - 39 |o o| 40 ---- +5V MOTOR | +----+ | +----+ +----------------+----+ SCSI ID Jumpers --------------- +--------------+----------+--------+--------+ | Drive Select | E1 | E2 | E3 | +--------------+----------+--------+--------+ | 0 | OPEN | OPEN | OPEN | | 1 | CLOSED | OPEN | OPEN | | 2 | OPEN | CLOSED | OPEN | | 3 | CLOSED | CLOSED | OPEN | | 4 | OPEN | OPEN | CLOSED | | 5 | CLOSED | OPEN | CLOSED | | 6 | OPEN | CLOSED | CLOSED | | 7 | CLOSED | CLOSED | CLOSED | +--------------+----------+--------+--------+ In addition, E1, E2 and E3 are supplied to Interface connector J3 for external SCSI ID selection. An external light emitting diode (LED) may be attached to the drive. The customer must supply the LED, a current limiting resistor (RCL) and a +5 Volt power source. The connection to the drive is made as follows: -+---++ +---+ J3-8 (-LED) ------------+LED+------+RCL+--------> +5V DC +---+ +---+ ********************************************************************** I N S T A L L ********************************************************************** CONNER CP2020 PRODUCT MANUAL P/N 00501-004 REV. I, SEPTEMBER 1990 Notes on installation ===================== Installation direction ---------------------- horizontally vertically +-----------------+ +--+ +--+ | | | +-----+ +-----+ | | | | | | | | | +-+-----------------+-+ | | | | | | +---------------------+ | | | | | | | | | | | | | | | | | | +---------------------+ | +-----+ +-----+ | +-+-----------------+-+ +--+ +--+ | | | | +-----------------+ Installation direction ---------------------- The drive may be mounted in any attitude! 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. Eight (8) mounting points are provided to the customer, four bottom mounts and four side mounts. The drive is mounted on the bottom by using 4-40 screws, 0.19" maximum insertion. The side mounting screws are 2.5 mm metric, 0.25" maximum insertion. The system integrator should 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. 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 row 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. Electrical Description ---------------------- The drive uses open collector drivers. All assigned aignals are terminated with 1K ohm to +5 volts to the drive through the TERMPWR line (J2-24). The termination resistors are not removable. 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 Maximum Total Input Load -0.4 ma at 0.4 VDC Signal False 2.0 VDC to 5.25 VDC Magnetic Field -------------- The disk drive will meet its specified performance while operating in the presense of an externally produced magnetic field under the following conditions. +------------------+------------------+ |Frequency | Field Intensity| +------------------+------------------+ | 0 to 1.5 Mhz | 6 gauss maximum| | 1.5 Mhz | 1 gauss maximum| +------------------+------------------+ Cabling ------- Connector J2 carries the SCSI interface signals and the power connections required to operate the drive. Connector J3 carries optional 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 on the TERMPWR line at J2-24. SCSI Bus Attachment ------------------- A single CP2020 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 i snot exceeded. Two or more CP2020 drives CANNOT be daisy-chained on a SCSI Bus as both drives contain termination resistors. This may result reflections on the cable which can cause communication errors between the initiator and the targets on the SCSI Bus. SCSI Bus -------- The SCSI bus can have up to eight devices sharing the bus; however, communication is allowed between only two devices at any given time. Each SCSI device has a SCSI ID bit assigned to it as shown below. SCSI ID Bits SCSI ID Data Bus 0 DB(0) 1 DB(1) 2 DB(2) 3 DB(3) 4 DB(4) 5 DB(5) 6 DB(6) 7 DB(7) When two SCSI devices communicate on the bus, one acts as an initiator and the other acts as a target. The initiator originates the operation and the target performs the operation. The drive assumes a fixed role as a target. ********************************************************************** F E A T U R E S ********************************************************************** CONNER CP2020 PRODUCT MANUAL P/N 00501-004 REV. I, SEPTEMBER 1990 Key Features ------------ The CP2020 is a high performance 2.5 inch low-profile (0.69") 21.7 megabyte (formatted) disk drive with 23ms average seek time which is designed with the SCSI interface. The drives feature 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 - 6.0 oz unit weight - High performance rotary voice coil actuator with embedded servo system. - Single connector for power & interface - Run length limited code (2/7) - High shock resistance - Internal air filtration system - Sealed HDA - Automatic actuator latch against inner stop upon power down - Microprocessor-controlled diagnostics routines that are auto- matically executed at start-up. - Automatic error correction and retries - Block size 512 bytes - SCSI Interface - 1:1 Interleave - Look Ahead Read Capability - 8K Buffer Seek Times ---------- +----------------------------------+--------+ |Physical track to track max. | 5 ms | +----------------------------------+--------+ | AT INTERFACE Average msec. | 23 | | Average msec. max. | 40 | +----------------------------------+--------+ |Latency msec. avg. | 8.7 | +----------------------------------+--------+ The timing is measured through the interface with the drive operating at nominal DC input voltages. 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. 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 two head selection, read preamplification, and write drive circuitry. The single microprocessor controlled circuit card provides the remaining electronic functions which include: - Read/Write Circuitry - Rotary Actuator Control - Interface Control - Spin Speed Control - Dynamic Braking - Power Management At power down 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 3433 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. Air Filtration System --------------------- The head-disk assembly is a sealed enclosure with an integral 0.3 micron filter which maintains a clean environment for the heads and disks. Head Positioning Mechanism -------------------------- The two read/write heads are supported by a mechanism coupled to the voice coil actuator. Read/Write Heads and Disks -------------------------- Data are recorded on 65mm diameter disk through two miniature miniature thin film heads. Error Correction ---------------- The CP2020 performs internal error correction. The error correction polynominal is capable of correcting one error burst with a maximum of 8 bits per 512 byte block. Reliability and Maintenance --------------------------- MTBF 100,000 hours POH (population is min. of 100 units) MTTR 10 minutes typical Preventive Maintenance None Component Design Life 5 years Safety Standard --------------- The CP2020 disk drive is designed to comply with relevant product safety standards such as: - UL 478, 5th edition, Standard for Safety of Information Processing and Business Equipment, and UL 1950, Standard for Safety of Information Technology Equipment - CSA 22.2#154, Data Processing Equipment and CSA 22.2#220, Information Processing and Business Equipment - IEC 435 Saftey Requirements for Data Processing Equipment, IEC 380, Safety of Electrically Energized Office Machines, and IEC 950, Safety of Information Technology Equipment Including Electrical Business Equipment - VDE 0805 Equivalent to IEC 435, VDE 0805 TIEL 100, Equivalent to IEC 950, and VDE 0806, Equivalent to IEC 380