1 5 7 8 - 1 5 D MICROPOLIS NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 1220| | | Capacity form/unform 332/ 382 MB Heads 15| | | Seek time / track 18.0/ 4.0 ms Sector/track 36| | | Controller SCSI1 DIFFERENTIAL Precompensation Cache/Buffer 64 KB LOOK-AHEAD Landing Zone Data transfer rate 1.250 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 31.5 W Altitude km -0.061 3.048| -0.305 15.240 idle W Shock g 2 | 50 seek 37.5 W Rotation RPM 3600 read/write W Acoustic dBA 47 spin-up W ECC Bit MTBF h 50000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** MICROPL. 1570 SERIES PRODUCT DESCRIPTION 104006 REV. C SINGLE-ENDED +---------------------------------------------------------++-+ J2 | +-+W4 ||X| | +-+ || |ID 2 | +-+W5 || |ID 1 | +-+ |+-+ID 0 | ++ |XX | RN202|| |XX | || |XX | +-+W1 ++ |XX J1 | +-+| | ++ |XX | W11+-++-+W2 RN203|| |XX | || |XX | ++ |XX | ++ |XX | RN204|| |X1 | || | | +---+W20 ++ |XX Power | +---+ |XX J3 +---------------------------------------------------------+ 1 +--------------------------------------+ | +--+J4 | | +--+ | | | | +--+J5 | | +--+ | | J2 J1 J3 | |.......... XXXXXXXXXXXXXXXXXX XXXXXXXX| +--------------------------------------+ Power DIFFERENTIAL +---------------------------------------------------------++-+ J2 | +-+W4 ||X| | +-+ || |ID 2 | +-+W5 || |ID 1 | +-+ |+-+ID 0 | ++ |XX | RN210|| |XX | || |XX | ++ |XX J1 | +W1-W2 |XX | +--+++ |XX | RN209|| |XX | || |XX | ++ |XX | ++ |X1 | RN208|| | | +---+ || |XX | +---+W20 ++ |XX Power +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** MICROPL. 1570 SERIES PRODUCT DESCRIPTION 104006 REV. C Jumper setting ============== x = Jumpers setting at factory J2 SCSI ID ----------- +----------+-----------------------+ | 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 (the host and seven targets) can be attached to the SCSI bus. The 1570 Series has three ID jumpers. These three jumpers are used to assign one of the eigth SCSI ID bits (0 through 7) to the drive. In multiple-device systems, each drive must have its own unique ID bit. J2 Operator Panel Option ------------------------- Multi-Function Connector/Jumper Block J2 can be 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 a START UNIT command to start the spindle motor. OPEN The drive automatically starts the spindle motor at power-on. (Factory default configuration) W20 Reserved Jumper -------------------- Reserved J3 DC Power and pin connector assignments ------------------------------------------- +------------+ pin 1 +12 V | 1 2 3 4 | pin 2 +12 Volts Return +------------+ pin 3 + 5 Volts Return pin 4 + 5 V ********************************************************************** I N S T A L L ********************************************************************** MICROPL. 1570 SERIES PRODUCT DESCRIPTION 104006 REV. C Notes on installation ===================== 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 1570 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; other mounting orientations may be used provided the ambient air temperature around the drive is kept at or below 50*C (122*F). Inasmuch as the drive frame acts as a heat sink to dissipate heat from the unit, the enclosure and mounting structure should be designed to allow natural convection of heat around the HDA and frame. If the enclosure is small or natural convetion is limited, a fan may be required. Differential Interface Note: The device Electronics board extents .7 inches beyond the normal form factor 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: Screws must be selected so that they do not penetrate the bottom mounting holes more than .20 inches and the side mounting holes more than .156 inches. Maximum torque applied to the screws must not exceed 10 in-lbs. Power Connector --------------- Power is supplied to the drive via 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 350078-4. 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. A differential interface is available, please contact Micropolis Product Marketing for further information. 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 of the drive's signal receivers 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 0.5 VDC 3) Signal false = 2.0 VDC to 5.25 VDC 4) Minimum input hysteresis = 0.2 VDC b. Output Characteristics Each driven signal has the following characteristics when measured at the interface connector. 1) Signal assertion = 0.0 VDC to 0.5 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 1570 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. - 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 drive's 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 V(OH) 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 bus loading (except for the purposes of providing power to an internal terminator). The 1570 Series provides keyed connectors to prevent accidental grounding or misconnection of terminator power. Signal Connector J1 ------------------- J1 is a 50-pin connector. Signal interface connection is made via this 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. 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 packs RN202, RN203, and RN204 (RN210, RN209, RN208) provide proper termination for the interface lines. In multiple-device systems, the terminators are installed in the LAST device on the cable. Multiple-Drive Systems ---------------------- 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 Adjustments and Maintenance --------------------------- The 1570 Series requires no adjustments or periodic maintenance; additionally, no mechanical adjustments are required to prepare a system for handling or shipment. Field-Replacable Components --------------------------- The concept of repair by replacement of complete functional components is utilized in the 1570 Series, resulting in an MTTR of less than 15 minutes. Data Transfers -------------- 1570 drives are capable of transferring data at 4.0 MB/s in SYNCHRONOUS mode and 1.6 MB/s in ASYNCHRONOUS mode. Read-Ahead ---------- The read-ahead function causes the 1570 drive to transfer the requested block into its buffer and continue to read sequential blocks until the buffer (or segment) is filled or another command is received. On subsequent request for data, the buffer will be checked for the requested blocks. If the data already resides in the buffer, it will be necessary. This results in a significant improvement in performance. Data Buffer ----------- The 64K data buffer may be divided into segments, with each segment holding data from a different area of this disk. Segmentation of the buffer maximizes the impact of read-ahead, especially in a multi-tasking or multi-user environment. By allocating a segment to each task or user, the chances of "cache hits" and enhanced performance are greatly increased. ********************************************************************** F E A T U R E S ********************************************************************** MICROPL. 1570 SERIES PRODUCT DESCRIPTION 104006 REV. C Command Pre-Processing ---------------------- Whenever possible, the 1570 Series prepares the next command for execution (received from another host) while the current command is executing. This feature takes advantage of any "dead" time, where the drive's microprocessor would otherwise be inactive, such as during a seek. Like the read-ahead function, command pre-processing is a time management technique that makes full use of the capabilities of the 1570 Series and enhances performance in multi-initiator systems. Seek Time --------- | 1570 | ----------------------------------+--------+ Track-to-Track msec. typ. | 4 | Average msec. typ. | 18 | msec. max | 40 | One-Third Stroke msec. max. | 19 | Latency msec. avg. | 8.33 | Nominal msec. max. | 16.67 | ----------------------------------+--------+ The 1570 Series has programmable sectors sizes from 256 to 4096 bytes in 1-byte increments.