1 5 8 5 - 8 MICROPOLIS NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 1626| | | Capacity form/unform 356/ 408 MB Heads 8| | | Seek time / track 16.0/ 4.0 ms Sector/track 54| | | Controller SCSI1 SINGLE-ENDED Precompensation Cache/Buffer 64 KB LOOK-AHEAD Landing Zone Data transfer rate MB/S int Bytes/Sector 512 4.000 MB/S ext SYNC Recording method RLL operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 50 | -40 65 Power: sleep W Humidity % 10 90 | 10 90 standby 28.0 W Altitude km -0.061 3.048| -0.305 15.240 idle W Shock g 2 | 20 seek 33.0 W Rotation RPM 3600 read/write W Acoustic dBA 45 spin-up W ECC Bit 48 MTBF h 150000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** MICROPL. 1580 SERIES TECHNICAL MANUAL 104644 REV. A +---------------------------------------------------------++-+ J2 | +-+W5 || | | +-+ || |ID 2 | +-+W4 || |ID 1 | +-+ |+-+ID 0 | COMPONENT SIDE +-+ |XX | | | |XX | RN9 | |XX J1 | | | |XX | | | |XX | +-+ |XX | +----+ |XX | +----+ |XX | W1 W2 |XX | +---+ |X1 | Frame Ground +---W11 | | Option +-+W28 |XX Power | +-+ |XX J3 +---------------------------------------------------------+ 1 +--------------------------------------+ | +--+J4 | | +--+ | | | | +--+J5 | | +--+ | | J2 J1 J3 | |.......... XXXXXXXXXXXXXXXXXX XXXXXXXX| +-------+++------------------1--------1+ ID210 Power ********************************************************************** J U M P E R S ********************************************************************** MICROPL. 1580 SERIES TECHNICAL MANUAL 104644 REV. A Jumper setting ============== x = Jumpers setting at factory Note that only those pages that are differnet from the single-ended schematic are shown special. Drive Option Selection ---------------------- While jumpers may be located in different locations on the differ- ential board, the nomenclature is consistent with the standard SCSI board. Board markings will identify each option. For example, when a jumper is installed at W2, terminator power is provided by the host system via interface cable J1, pin 26. If more than one drive is to be installed in a system, remove the interface terminator at RN9 from each drive except the last one; and configure each drive to a differnet SCSI ID. J2 SCSI ID SINGLE-ENDED ------------------------ +----------+-----------------------+ | SCSI ID | Jumpers | | | ID2 | ID1 | ID0 | +----------+-------+-------+-------+ |x 0 | OPEN | OPEN | OPEN | +----------+-------+-------+-------+ | 1 | OPEN | OPEN | CLOSED| +----------+-------+-------+-------+ | 2 | OPEN | CLOSED| OPEN | +----------+-------+-------+-------+ | 3 | OPEN | CLOSED| CLOSED| +----------+-------+-------+-------+ | 4 | CLOSED| OPEN | OPEN | +----------+-------+-------+-------+ | 5 | CLOSED| OPEN | CLOSED| +----------+-------+-------+-------+ | 6 | CLOSED| CLOSED| OPEN | +----------+-------+-------+-------+ | 7 | CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+ Up to eight devices (A host and seven targets) can be attached to the SCSI bus. The 1580 Series has three ID jumpers which are used to assign one of the eight SCSI ID bits (0 - 7) to the drive. In multiple-device systems, each drive must have its own unique ID bit. J2 SCSI ID DIFFERENTIAL ------------------------ +----------+-----------------------+ | SCSI ID | Jumpers | | | ID2 | ID1 | ID0 | +----------+-------+-------+-------+ | 0 | OPEN | OPEN | OPEN | +----------+-------+-------+-------+ | 1 | OPEN | OPEN | CLOSED| +----------+-------+-------+-------+ | 2 | OPEN | CLOSED| OPEN | +----------+-------+-------+-------+ | 3 | OPEN | CLOSED| CLOSED| +----------+-------+-------+-------+ | 4 | CLOSED| OPEN | OPEN | +----------+-------+-------+-------+ | 5 | CLOSED| OPEN | CLOSED| +----------+-------+-------+-------+ | 6 | CLOSED| CLOSED| OPEN | +----------+-------+-------+-------+ | 7 | CLOSED| CLOSED| CLOSED| +----------+-------+-------+-------+ Up to eight devices (ANY combination of host and targets) can be attached to the SCSI bus. The 1580 Series has three ID jumpers. These three jumpers are used to assign one of the eight SCSI ID bits (0 through 7) to the drive. J2 Operator Panel Option ------------------------- Multi-Function Connector/Jumper Block J2 is used to connect the drive to a user-supplied operator panel. J2 Pin 19 Logic ground 20 Not used 21 Write Protect Input. Logic Ground disables writing and lights the Write Protect LED. 22 Ready output. Logic ground indicates the drive is Ready and lights the Ready LED. 23 +5V source for the LEDs. J4/J5 Ground Connection ------------------------ 3/16-inch spade lugs J4 and J5 are provided for grounding; system characteristics determine proper ground connection. W1/W2/W11 Bus Termination Power Option --------------------------------------- +-----------------------+------------------------------------+ | Jumpers | | | W1 | W2 | W11 | | +-------+-------+-------+------------------------------------+ | CLOSED| OPEN | OPEN |The drive provides terminator power | | | | |to its on-board terminators | | | | |(Factory default configuration) | +-------+-------+-------+------------------------------------+ | OPEN | CLOSED| OPEN |Terminator power is provided by the | | | | |host via interface cable J1, pin 26 | +-------+-------+-------+------------------------------------+ | OPEN | CLOSED| CLOSED|The drive provides terminator power | | | | |to its on-board terminators and | | | | |also to the SCSI bus via interface | | | | |cable J1, pin 26 (TERMPWR) | +-------+-------+-------+------------------------------------+ Under normal conditions, TERMPWR is sourced by SCSI Initiators. There may be some unique system configurations which needs a target to supply TERMPWR to the cable, W11 is provided for this requirement. W4 Bus Parity Check Option --------------------------- CLOSED The drive neither generates nor detects parity. OPEN The drive generates parity and enables parity detection. (Factory default configuration) W5 Spindle Control Option --------------------------- CLOSED The drive must wait for an interface START UNIT command to start the spindle motor. OPEN The drive automatically starts the spindle motor at power-on. (Factory default configuration) W28 Frame Ground Option ------------------------ CLOSED Frame Ground is connected to logic ground OPEN Frame Ground is not connected to logic ground (Factory default configuration) This option is valid only on boards Rev. B and later! J3 DC Power and pin connector assignments ------------------------------------------- -------------------+ --+ +-----J3-----+| pin 1 +12 VDC 1| | 4 3 2 1 || pin 2 +12 Volts Return -+ +------------+| pin 3 + 5 Volts Return ------------------+ pin 4 + 5 VDC ********************************************************************** I N S T A L L ********************************************************************** MICROPL. 1580 SERIES TECHNICAL MANUAL 104644 REV. A Notes on installation ===================== Note that only those pages which are different from the single-ended schematic are shown special. Drive mounting -------------- horizontally vertically +-----------------+ +--+ +--+ +------------------+ | | | +-----+ +-----+ | | | x | | | | | | | | x+----------------+x +-+-----------------+-+ | | | | | | ||x x|| +---------------------+ | | | | | | || x x || | | | | | | || x x || x x | | | | | | || x x || +------x------x-------+ | +-----+ +-----+ | || xx || +-+------x--x-------+-+ +--+ +--+ || x x || | xx | || x x || | x x | || x x || +---x--------x----+ |x x| x x x++----------------++x Dimensions and Mounting ----------------------- The 1580 series uses industry-standard mounting techniques for 5 -inch Winchester disk drives. Recommended orientation is vertical on either side, or horizontal with the Device Electronics board down. Mounting Screws --------------- 2 per side 6-32 UNC-2B x 0.156 max deep. 4 on bottom 6-32 UNC-2B x 0.20 max deep. Caution: The mounting screws must be selected so that they do not penetrate the bottom mounting holes more than 0.20 inches and the side mounting holes more than 0.156 inches. Screws that are too long will short to PCBA components and/or prevent proper operation of the shock mount system. Power Connector J3 ------------------ DC power is supplied to the drive at 4-pin, keyed, AMP MATE-N-LOK Connector J3. Suggested wire size is 18 AWG (minimum) for all pins. Recommended mating connector is AMP 1-480424-0 Recommended pins are AMP P/N 60619-4 (loose), 61117-4 (strip) Interface Electrical Characteristics (Single-ended) --------------------------------------------------- Interface control and status signals are digital (open collector TTL) utilizing industry-standard transmitters and receivers which provide a terminated, single-ended system. The assigned signals are terminated with 220 ohms to +5V (nominal) and 330 ohms to ground at each end of the cable. All signals use open-collector or three-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 cable. A characteristic impedance of 100 ( 10%) ohms is recommended for un- shielded flat or twisted pair ribbon cable. a. Input Characteristics Each received signal has the following characteristics when measured at the interface connector. 1) Signal true = 0.0 VDC to 0.8 VDC 2) Maximum total input load = -0.4 milliamps at 0.4 VDC 3) Signal false = 2.0 VDC to 5.25 VDC 4) Minimum input hysteresis = 0.2 VDC b. Output Characteristics Each signal driven by an SCSI device has the following characteristics when measured at the interface connector. 1) Signal assertion = 0.0 VDC to 0.4 VDC 2) Minimum driver output capability = 48 milliamps (sinking) at 0.5 VDC. 3) Signal negation = 2.5 VDC to 5.25 VDC 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). The 1580 Series provides keyed connectors to prevent accidental grounding or misconnection of terminator power. Interface Electrical Characteristics (Differential) --------------------------------------------------- Differential drivers and receivers allow a maximum cable length of 25 meters. Differential interface signals consist of two signal lines denoted +SIGNAL and -SIGNAL. A signal is true when +SIGNAL is more positive than -SIGNAL, and a signal is false when -SIGNAL is more positive than +SIGNAL. - Signal transmission requires a single 50-conductor cable. - A characteristic impedance of 100 ( 10%) ohms is recommended for unshielded twisted-pair ribbon cable. - A minimum conductor size of 28 AWG should be employed to minimize noise effects and ensure proper distribution of optional terminator power. A stub length of no more than 0.2 meters is allowed off the mainline interconnection within any connected equipment. a. Input Characteristics Each of the drives signal receivers has the following characteristics when measured at the interface connector. I(I) (input current on either input) = 2.0 milliamps, max Note: These characteristics include both receivers and passive drivers. This requirement is met with the input voltage varying between -7V and +12V, with power either on or off, and with hysteresis equaling 35 millivolts, minimum. b. Output Characteristics Each driven signal has the following characteristics when measured at the interface connector. V(OL) (low-level output voltage) = 1.7 V max at I(OL) where I(OL) = 55 milliamps V(OH) (high-level output voltage) = 2.7 V max at I(OH) where I(OH) = -55 milliamps V(OD) (differential voltage) = 1.0 V minimum, with commonmode voltages ranges from -7 to +12 V(OL) and VOH are measured between the output terminal and the SCSI device's logic ground reference. c. Terminator Power (TERMPWR at Pin 25 and 26) Terminator Power has the following requirements: V(TERM) = 4.0 VDC to 5.25 VDC 600 milliamps minimum source drive capability with 1.0 amp recommended current limiting (e.g., a fuse). 1.0 milliamp maximum busloading (except for the purposes of providing power to an internal terminator). The 1580 Series provides keyed connectors to prevent accidental grounding or misconnection of terminator power. Signal Connector J1 ------------------- Signal Connector J1 has 50 pins and is compatible (i.e., pin and function) with the Small Computer System Interface (SCSI) proposed by the American National Standards Committee. A differential inter- face is also available on special request. Multi-Function Connector J2 --------------------------- Multi-Function Connector J2 has 24 pins and provides an interface connection for a user-supplied Operator Panel. Ground Connectors J4 and J5 --------------------------- 3/16-inch spade lugs J4 and J5 are provided for grounding. Systems characteristics determine proper ground connection. Mating connector: AMP 60972-2 or equivalent. Interface Terminator -------------------- Interface Terminator pack RN9 provides proper termination for the interface lines. In multiple-device systems, the terminators are installed in the LAST device on the cable. Multiple 1580 System Configuration ---------------------------------- Drive #1 +------HOST------+ +-----------------+ | +-----------+ +--+-SCSI-BUS-----+ J1 | | |Terminators| | | +------+ J3 J4/J5 | | +-----------+ | | | +--------+--------+ | | | | +------------------+ +----------------+ | | Drive #2 | | | +-----------------+ | +-------+------+ J1 | | | o------+ J3 J4/J5 | | | | +--------+--------+ | | | +------------------+ | | Drive #3 | | | +-----------------+ | +-------+------+ J1 | | | o------+ J3 J4/J5 | | | | +--------+--------+ | | | +------------------+ | | Drive #4 | | | +------------+----+ | +-------+------+ J1 | T | | ---DC-VOLTAGES-----o------+ J3 J4/J5 +----+ | +--------+--------+ | ---GROUND--------------------------+------------------+ T = Terminator Shock Protection ---------------- To protect the heads and media against damage caused by shock and vibration, 1580-series drives incorporate a Head/Disk Assembly (HDA) which is shock isolated from the outer Frame. For additional protection, an area of the disk not used for data storage is reserved for "landing" the heads. Whenever power is removed from the drive, the positioner automatically moves the heads to the landing zone where an automatic latching mechanism locks the positioner in place. Cooling ------- The enclosure and mounting structure must be designed to allow for the natural convection of heat by permitting air to flow freely around the PCBA. A typical 1588-15 dissipates 28 watts (95.5 Btu/hr) in the standby mode and 33 watts (112.6 Btu/hr) while positioning. This is sufficient to maintain the ambient air temperature around the drive at or below 50*C (122*F). If the enclosure is small and/or natural air flow is restricted, a fan may be required. Spindle Motor and Control ------------------------- The disks are rotated at 3600 RPM by a direct drive, brushless, DC motor and its associated electronics. ********************************************************************** F E A T U R E S ********************************************************************** MICROPL. 1580 SERIES TECHNICAL MANUAL 104644 REV. A 1588-15S/1585-8S Specifications ------------------------------- The 1588-15S is a short stroke version of the 1580 Series drive specifically engineered for applications requiring very fast access. This is achieved by reducing the total number of accessible cylinders. The 1585-8S is a depopulated version of the 1580 Series drive specifically engineered for applications which require 389 Mbytes and 15 MHz transfer rate at the lowest possible cost. This is achieved by removing three disks and seven data heads. The total cylinders are then adjusted to obtain a capacity of approximately 389 Mbytes. Seek Time --------- | 1580 | ----------------------------------+--------+ Track-to-Track msec. typ. | 4 | Average msec. typ. | 16 | Maximum msec. | 35 | One-Third Stroke msec. max. | 17 | Latency msec. avg. | 8.33 | ----------------------------------+--------+ Formatted Capacity Calculation ------------------------------ The formatted capacity of the 1580 Series depends upon a number of user-selectable variables. One critical variable is sparing, either track-oriented or cylinder-oriented. The following formula is used to calculate the formatted capacity (C) of the 1580 Series using cylinder-oriented sparing: C = [(SPT x HDS) - (SPARE_SPC)] x (1632 - 3 - SPARE_CYL) x (BYTES) SPARE SPC is the number of spare sectors per cylinder. This variable is user programmable. The recommended value varies with each drive model as follows: 1588-15 = 4 1587-12 = 6 1585-09 = 5 1588-14 = 7 1586-11 = 6 1585-08 = 4 1587-13 = 7 1586-10 = 5 1584-07 = 4 1632 is the number of physical cylinders. 3 cylinders are used by the drive and are not useraccessible. SPARE CYL is the number of spare cylinders. This variable is user programmable; a typical value for sparing is 3. BYTES is the bytes per sector (e.g., 1024, 512, etc.) 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 defects are listed on a label affixed to the drive. The defective areas are located by: a. Head address (HD) b. Cylinder address (CYL) c. Number of Bytes from Index (BFI). A printed list of the defects is also shipped with each drive. In addition to listing the defects on the label and the printout, the defects are also mapped on the drive. Introduction ------------ The 1580 Series is designed for trouble-free operation. Since most maintenance procedures require a high degree of technical sophistication, proper training, and the right equipment, only pro- perly trained personnel should perform corrective maintenance. Preventive Maintenance ---------------------- Preventive maintenance is not required during normal use. Corrective Maintenance ---------------------- There are no field-replaceable components within the sealed area; therefore, cleanarea integrity MUST NOT be violated. The Micropolis warranty will be invalidated if any of the screws in the Head/Disk Assembly are removed.