W R E N R N R - 2 9 4 6 0 1 - 7 6 7 E CDC NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 1399| | | Capacity form/unform 676/ 788 MB Heads 15| | | Seek time / track 12.9/ 2.9 ms Sector/track 63| | | Controller ESDI Precompensation 65535 Cache/Buffer KB Landing Zone Data transfer rate MB/S int Bytes/Sector 512 3.000 MB/S ext Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 50 | -40 70 Power: sleep W Humidity % 8 80 | 8 80 standby W Altitude km -0.305 3.048| -0.305 12.210 idle W Shock g 2 | 32 seek 27.0 W Rotation RPM 4800 read/write W Acoustic dBA spin-up W ECC Bit MTBF h 100000 Warranty Month Lift/Lock/Park YES Certificates CSA,IEC380,IEC435,UL478,VDE ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST4767ES/ST4769ES PRODUCT MANUAL 77765457 +--------------------------------------------------------+ | |XX J4 | J9+-+ |XX Data | | | |XX Cable | +-+ |XX | J11+-+ |X1 | +-1 | | Terminator +1 |XX | Resistor || |XX J3 | Pack || |XX Control | || |XX Cable | ++ |XX | +-+ |XX | J8| | |XX | +-+ |X1 | | | |XX Power | |XX J1 +--------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST4767ES/ST4769ES PRODUCT MANUAL 77765457 Jumper setting ============== x = Jumpers are set at factory J1 Power Connector ------------------- +---+---+---+---+ | 1 | 2 | 3 | 4 | +--++--++--++--++ | | | +---------- + 5V | | +-------------- + 5V Return | +------------------ +12V Return +---------------------- +12V J8 Drive Select/Write Protect ----------------------------- ---+---+---+---+---+--- PWA | o | o | o | o | +-+-+-+-+-+-+-+-+Pin 1 | | | +----------- Drive Select 1 --+ | | +--------------- Drive Select 2 --+ Binary | +------------------- Drive Select 4 --+ Coded +----------------------- Write Protect J8 Drive Select --------------- x x +-x-----x-+ +---------+ | O x O | Drive Select 0 | O O X | Drive Select 1 | x O x | Unit select zero (no | O O X | x+---------+x jumper) is invalid +---------+ +---------+ +---------+ | O X O | Drive Select 2 | O X X | Drive Select 3 | O X O | | O X X | +---------+ +---------+ +---------+ +---------+ | X O O | Drive Select 4 | X O X | Drive Select 5 | X O O | | X O X | +---------+ +---------+ +---------+ +---------+ | X X O | Drive Select 6 | X X X | Drive Select 7 | X X O | | X X X | +---------+ +---------+ Pins on the drive ID select and configuration select header are provided to facilitate manual drive configuration. No devices other than jumpers should be connected to these pins. Connection to external devices (Switches, Connectors, etc.) could result in adverse drive performance. Exact location of these pins and header may be changed without notice. Drive Select ------------ The following characteristics apply to the Drive Select lines: 1. Logical unit designation for up to 7 drives is performed during installation by installing jumpers on pins on a connector header on the main PWA. The jumpers are installed in a 1 through 7 position configuration to select device addresses 1 through 7. Zero is not a valid address. 2. The controller shall not attempt to select the drive until 1 second after DC power is applied. The Ready output will be valid (whether asserted or negated) within 1 us after the drive is selected. 3. The drive will be selected (and the Drive Selected Signal asserted) within 1 us after the Drive Select lines contain that unit's select address. The drive will be deselected (and the Drive Selected signal negated) within 1 us after the Drive Select lines contain another unit's select address. 4. The Drive Select lines must remain asserted for 1 us after a write operation. 5. When the Drive Select lines are asserted, a head change will occur, requiring a delay before a read or write operation can be initiated. J8 Write Protect ----------------- Entire Write Protected when jumper ON. The WREN RUNNER-2 can be write protected by installing a jumper plug on the leftmost jumper position of the ID select header, J8. The host can detect if the drive is write protected by checking bit 12 of the Standard Status returned by the drive. If bit 12 is "1", the drive is write protected. If bit 12 is "0" the drive is not write protected. J9 Sector Configuration ------------------------- |ST4767ES | ST4769ES | Jumper Plug (1) | +----------+-----------+-----+-----+-----+-----+-----+-----+-----+ |Sectors | Sectors | 1 | 2 | 3 | 4 | 5 | 6 | 7 | +----------+-----------+-----+-----+-----+-----+-----+-----+-----+ | (6) | (6) | (3) | (5) | OFF | OFF | OFF | (5) | (7) | | 60 | 50 | (3) | (5) | OFF | OFF | ON | (5) | (7) |(2) | 61 | 51 | (3) | (5) | OFF | ON | OFF | (5) | (7) | | 62 | 52 | (3) | (5) | OFF | ON | ON | (5) | (7) |(7) | 63 | 53 | (3) | (5) | ON | OFF | OFF | (5) | (7) | | 33 | 29 | (3) | (5) | ON | OFF | ON | (5) | (7) | | Reserved | Reserved | (3) | (5) | ON | ON | OFF | (5) | (7) | | Address | Address | (3) | (5) | ON | ON | ON | (5) | (7) | | Mark (9) | Mark (9) | | | | | | | | +----------+-----------+-----+-----+-----+-----+-----+-----+-----+ (1) ON - Plug installed; OFF - Plug not installed (2) The configuration of the installed jumper plugs on the Option Select Header is specified by a customer configurator document. (3) Motor Start Option Jumper. If #1 installed, the drive requires a Motor Start command to spin up. (4) All of these configurations are for head sector operation. (5) Factory use only. (6) Special sector switch setting that can be factory configured to customer requirements. (7) Synchronized spindle terminator connected. Install jumper only on last drive of daisy chain when operating in synchronized spindle mode. (8) Input header for Reference Signal for synchronous spindle operation. (9) Soft Sector Option The WREN RUNNER-2 ESDI supports the use of the soft sector format as described in the ESDI Specification, 77738076, Section 5.4.4. To implement the optional soft sectored format operation, select "Address Mark" mode in the WREN RUNNER-2 ESDI by installing option jumper plugs 2, 3, and 4. J11 Synchronous Spindle Operation ---------------------------------- The Synchronous Spindles Interface (SSI) allows several drives operating from the same host to operate their spindles at a synchronous rotational rate. Drives operating in a system in synchronous mode increase the system capacity and transfer rate in a cost effective manner. There is no requirement by the ESDI standard that drives from multiple vendors operate together in the synchronous spindle mode. A mix of drives from different manufacturers is not likely to work to- gether in the synchronous mode, because spindle rotation rate, sync fields, sync bytes, etc. need to be virtually identical. ********************************************************************** I N S T A L L ********************************************************************** SEAGATE ST4767ES/ST4769ES PRODUCT MANUAL 77765457 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 UNACCEPTABLE! UNACCEPTABLE! Never install PC board on the Top! Drive Orientation ----------------- Only two drive mounting orientations are permitted: discs in the horizontal plane and discs in the vertical plane. The uppermost surface must be maintained in a level position or drive performance may be adversely affected. Mounting with either end down (front or rear) is not permissible. The drive may be not mounted inverted (upside down) in the horizontal orientation. It is recommended for optimum performance that data written in a given orientation be read in that same orientation. The WREN RUNNER-2 ESDI is designed, manufactured, and tested with a "Plug-in and Play" installation philosophy. This philisophy minimizes the requirements for highly trained personnel to integrate the WREN RUNNER-2 ESDI into an OEM's system, wether in a factory or field environment. Mounting Holes -------------- Mounting Holes four on bottom. Two on each side. 6-32-UNC. max. screw length into side of chassis 3.19 mm (0.125 in.) max. Srew length into bottom of chassis is 3.19 mm (0.125 in). Cooling ------- Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding the WREN RUNNER-2 ESDI will not exceed temperature conditions. Specific consideration should be given to make sure adequate air circulation is present around the circuit board at the rear of the drive. Interface Cabling Options ------------------------- View A +---------------------Host-Controller---------------------+ | | |Data Control Data Control Data Control Data Control | +--+-----+--------+-----+--------+-----+--------+-----+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-++-+--++-+-+ +-++-+--++-+-+ +-++-+--++-+-+ +-++-+--++-+-+ | |T | |*T| | | |T | |*T| | | |T | |*T| | | |T | |*T| | | +--+ +--+ | | +--+ +--+ | | +--+ +--+ | | +--+ +--+ | |WREN OR ESDI| |WREN OR ESDI| |WREN OR ESDI| |WREN OR ESDI| +------------+ +------------+ +------------+ +------------+ Each cable control length must not exceed 10 feet (3.00m). Each data cable length must not exceed 10 feet (3.00m). *T indicates removable terminator resistor pack. WREN data ports are permanently terminated. Radial Configuration -------------------- View A shows each drive interfaced to its own control cable, which allows interfacing an arbitrary number of drives and a variety of system operational techniques. Each drive has its data cable and control cable connected to the host controller. The length of each individual cable must not exceed 10 feet (3.0 meters). Terminator resistors must be installed in the host controller for each data cable and for each control cable. For this configuration, a terminator resistor pack must be installed in each WREN RUNNER-2 ESDI Disc Drive. The orientation of Pin 1 of the terminator resistor matters. View B +--------------Host Controller-------------+ | | |Data Control Data Data | +-+------+-------+--------------+----------+ | | | | | | | | | | | | | +--**---+-------+------+-------+ +++-+----+---+ +++-+-----+--+ +++-+----++-++ ||T | | ||T | | ||T | |*T|| |+--+ | |+--+ | |+--+ +--+| |WREN OR ESDI| |WREN OR ESDI| |WREN OR ESDI| +------------+ +------------+ +------------+ Total control cable length must not exceed 10 feet (3.00m). Each data cable length must not exceed 10 feet (3.00m). *T indicates removable terminator resistor pack. WREN data ports are permanently terminated. ** A maximum of 7 devices may be interconnected. Daisychain Configuration ------------------------ A daisychain configuration connects a maximum of seven drives in parallel on a common control cable. Only the drive selected by the host system has its control signals enabled through this common interface. View B illustrates a daisychain of WREN RUNNER-2 ESDI disk drives or other ESDI devices. A terminator resistor pack is required in the host controller for each data cable. Only the last ESDI device in the daisychain requires a terminator resistor pack for the control cable. Terminator resistor packs for the control cable or other drives must be removed. The total combined control cable length (from the controller to the first drive, to the second and subsequent drives) must not be more than 10 feet (3.00 meters). DC Cable and Connector ---------------------- The WREN RUNNER-2 ESDI receives DC power through a 4 pin right angle connector mounted on the main circuit board. Recommended part number of the mating connector are provided, but equivalent parts may be used. Type of cable: 18 AWG Connector: AMP 1-480424-0 Contacts: AMP 60619-4 (Loose Piece); AMP 61117-4 (Strip) Data Cable and Connector ------------------------ The I/O connector for the data interface is a 20 pin board edge connector. The odd pins are located on the back (up) side of the printed circuit board. The even pins are on the front (down) side of the printed circuit board. A key slot is provided between pins 3 and 5. Seagate recommends keying this connector to prevent installing it upside down. However, the WREN will not be damaged if the connector is installed upside down. Recommended part numbers for the mating connector are included below, but equivalent parts may be used. Connector: 20 pin, 3M-3461-0001, AMP 88373-6 Cable: Flat Cable (Stranded AWG 28) 3M-3365-20 Flat Cable (Stranded AWG 28) 3M-3517-20 (Shielded Cable) Key: AMP 583274-1, 3M-3439-0000 Control Cable and Connector --------------------------- The I/O connector for the control interface is a 34 pin board edge connector. The odd pins are located on the back (up) side of the printed circuit board and are connected to the ground plane. The even pins are on the front (down) side of the printed circuit board. A key slot is provided between pin 3 and 5. Seagate recommends keying this connector to prevent installing it upside down. However, the WREN will not be damaged if the connector is installed upside down. Recommended part numbers for the mating connector are provided, but equivalent parts may be used. Connector: 34 pin, 3M-3463-0001, AMP 88373-3 Key: AMP 583274-1, 3M-3439-0000 Cable: Flat cable (Stranded AWG 28) 3M-3365-34 Flat cable (Stranded AWG 28) 3M-3517-34 (Shielded Cable) Spectra Strip Twist'n Flat 455-248-34 (Stranded AWG 28 Twisted Pair) Interface Drivers/Receivers --------------------------- The WREN RUNNER-2 ESDI uses two types of signals; single ended and balanced differential. The data and clock signals use balanced differential drivers and receivers. All other signals use single ended drivers and receivers. Single Ended Drivers/Receivers ------------------------------- Transmitter Characteristics The WREN RUNNER-2 ESDI uses the 74F38 open collector buffer/driver to transmit status to the host. This driver is capable of sinking a current of 40 mA with a low-level output voltage of 0.7 V. Receiver Characteristics The WREN RUNNER-2 ESDI uses the 74LS14 Hex Inverter with hysteresis gate as a line receiver. The input of each receiver is terminated in a 150 ohm pullup resistor. Terminator Characteristics The terminator is a resistor module that plugs into a socket in the last drive in a daisychain. Note orientation of pin 1. Each drive is furnished with a terminator. Terminators must be removed from all except the last drive on the cable prior to daisychain operation. An equivalent terminator must be provided in the controller on each input signal line from the drive to the controller. Only the Control cable resistor module is removable. Balanced Differential Drivers/Receivers --------------------------------------- Transmitter Characteristics The WREN RUNNER-2 ESDI uses 8923 type balanced differential drivers. An assertion on the interface is defined when "+" output is more positive than the "-" output. Synchronous Spindles Interface ------------------------------ The synchronous Spindles Interface (SSI) allows several drives operating from the same host to operate their spindles at a synchronous rotational rate. Termination ----------- The Reference Index Signal is termined with a 150 Ohm resistor. The Termination resistor is located in the last drive in the reference signal daisy chain, which is the drive farthest from the master drive (or host). A jumper on jumper position 7 of the Configuration Select- ion Header connects the terminator resistor into the circuit. Physical Interface ------------------ The connector mounted on the PWA to interconnect the drives, is a 2-pin gold header type connector, Seagate part number 51860845 (Du Pont Electronics part number 78978-202 or equivalent). A recommended mating connector is a Mini-Latch Housing, DuPont Electronics part number 65039-035 or equivalent. ********************************************************************** F E A T U R E S ********************************************************************** SEAGATE ST4767ES/ST4769ES PRODUCT MANUAL 77765457 Standards --------- The WREN RUNNER-2 ESDI has been developed as a system peripherals to the highest standards of design and construction. The WREN RUNNER-2 ESDI depends upon its host equipment to provide adequate power and environment in order to achieve optimum performance and compliance with applicable industry and governmental regualations. Special attention must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation. The WREN RUNNER-2 ESDI complies with Seagate standards. The WREN RUNNER-2 ESDI is a UL Recognized component per UL478 and a CSA Certified Component per CSA C22.2, No. 220-M1986. It also meets the requirements of DIN IEC 380/VDE 0806/8.81, EN60 950/1.8.8, and DIN IEC 435/VDE 805/11.84. The WREN RUNNER-2 ESDI, as delivered, is designed for system integration and installation into a suitable enclosure prior to use. As such the WREN RUNNER-2 ESDI is supplied as a sub-assembly and is not subject to Subpart J or Part 15 of the FCC Rules and Regulations or the Radio Interference Regulations of the Canadian Department of Communications. However, the unit has been tested using proper shielding and grounding and found to be compliant with Class A limits of the FCC Rules and the Regulations of the Canadian Department of Communications. Media Description ----------------- The media used in the WREN RUNNER-2 ESDI has a diameter of approximately 5 inches (130 mm). The aluminum substrate is coated with a thin film magnetic material, and lubricated to permit the heads to contact the surface when starting and stopping. Each data surface has a total of 1399 tracks (Model ST4767ES) and is capable of recording 53,469,504 bytes of unformatted data. The Model ST4769ES has 1552 tracks and 52,580,016 data bytes per surface. Media defects are characterized as correctable or uncorrectable de- pending on the type and magnitude of the media flaw. Various error correction codes may be implemented. The code chosen should be consistent with Seagate media testing and certification methods. WREN RUNNER-2 ESDI media certification is performed using the following standards: An error burst of 11 bits or less is a correctable error. An error burst greater than 11 bits in length is an un- correctable error. Host systems using the WREN RUNNER-2 ESDI should have, as a minimum, resident capabilities to recognize and map defective tracks and perform track reallocation routines. At the time of shipment from the point of manufacture, the WREN RUNNER-2 ESDI recording surfaces will meet the following requirements. 1. 1399 (Model ST4767ES) or 1552 (Model ST4769ES) total tracks per surface. 2. Track 0 to be error free on each data surface. 3. 50 defects per surface maximum. 4. Cumulative defects not to exceed 1 per megabyte, based on total available unformatted drive capacity. Defect and Error Management --------------------------- The WREN RUNNER-2 ESDI, as delivered, complies with this specifica- tion. The read error rate and specified storage capacity are not dependent upon use of defect management routines. The error rate specification does assume that the sectors with defect in the defect log are deallocated. However, a carefully chosen defect management plan can significantly enhance overall system performance. Identified defects are recorded on the defects list tracks per ESDI specification. It is recommended that these known defects be reallocated during the initial format operation. Sector reallocation is suggested because, in general, it is more efficient and may offer significant performance improvement. Error Correction Code (ECC) should be used to correct additional flaws as they occur. ECC is recommended since most of the defects are recoverable with ECC. If ECC is not used, defects are usually unrecoverable and need to be reallocated as they are discovered. The WREN RUNNER-2 ESDI defect list is written on maximum track, maximum track minus eigth and a special track 4095 on each surface in the format given in the ESDI Specification, with the write splice byte omitted from the format. To successfully read the drive defect list on the standard drive the Read Gate must be asserted only at the first bit of the first byte of the PLO sync field that follows the drive ISG field immediately following Index. Read gate should not be toggled and reasserted after the address field and before the data field. The ISG field can be determined by using the Request Configuration Command (code 3700H). An option is available upon customer request to have the defect list formatted with a write splice byte between the address and data fields. This would then allow for the reassertion of Read Gate after the address field and prior to the data field. Custom Formatting ----------------- The WREN RUNNER-2 ESDI is formatted during production. Seagate maintains custom formatting capability which can incorporate many of the unique formats used in Winchester marketplace. A majority of special format requirements can be implemented as specified. Electrical Description ---------------------- The electrical interface consists of one digital TTL reference index signal and ground. The Reference Index Signal (REFINF-) is an output if the drive is configured as a master and is an input otherwise. The Reference Index Signal is connected from drive to drive in a daisy chain fashion. Drivers and Receivers --------------------- The driver circuits have the following electrical specifications. ASSERTED (TRUE): 0.0 V to + 0.4 V @ I = - 48 mA (max). NEGATED (FALSE): +22.4 V to +5.25 V @ I = +250 uA. Seek Time --------- |ST4767ES|ST4769ES ----------------------------------+--------+-------- Track-to-Track msec. typ. | 2.9 | 2.9 msec. max. | 4 | 4 Average msec. typ. | 12.9 | 14.4 Average msec. max. | 14 | 15.5 Latency msec. avg. | 6.25 | 6.25 ----------------------------------+--------+-------- Seek time is defined as the elapsed time from the receipt of a seek command until the drive signals the controller that it is ready to perform another seek or a read/write function on the new cylinder. Average seek time is determined by dividing the sum of the times for all possible movements by the total number of movements. Spindle Speed and Latency ------------------------- The spindle speed is 4800 1% r/min. The speed tolerance includes motor performance and motor control circuit tolerances. The average latency time is 6.25 milliseconds, based on a nominal disc speed of 4800 r/min. The maximum latency time is 12.50 milli- seconds based on a minimum disc speed of 4752 r/min. Synchronous Spindle Operation ---------------------------------- The Synchronous Spindles Interface (SSI) allows several drives operating from the same host to operate their spindles at a synchronous rotational rate. Drives operating in a system in synchronous mode increase the system capacity and transfer rate in a cost effective manner. There is no requirement by the ESDI standard that drives from multiple vendors operate together in the synchronous spindle mode. A mix of drives from different manufacturers is not likely to work to- gether in the synchronous mode, because spindle rotation rate, sync fields, sync bytes, etc. need to be virtually identical. Standard WREN RUNNER-2 drives do not operate in the synchronous spindle mode. Drives that operate in the synchronous spindle mode have a special Main Circuit Board and a special Power circuit board. The interface consists of a twisted pair cable that connects the drives in the synchronous system in a daisy chain configuration. Each drive in the system can be configured to operate in either the master or slave mode. Drives are configured by use of the Set Configuration command. The host can test the enabled/disabled status of the drive using the request configuration command. The master provides the reference signal to which all other drives phase lock, including the master. There is only one master per system, and that can be a drive or the host computer. All drives may be configured as slaves allowing the host to provide the reference signal. All drives default to the synchronous mode when powered up. Each drive can be configured for the non-synchronous mode in which it ignores any reference signal that migth be present. The connection of the synchronous reference signal to the host is required only if the host is to provide the reference signal. If the host does not provide the reference signal, the host should not be connected and the master should be drive #1. The drive with the terminator connected to the reference signal line (via jumper) should always be the drive at the greatest distance from the master. Read Data Transfer Rate ----------------------- The read serial data transfer rate is: Model Megabits/Sec Megabytes/Sec ------------------------------------------------------ ST4767ES 24.0 3.0 ST4769ES 22.0 2.75 Start/Stop Time --------------- The WREN RUNNER-2 ESDI will become ready less than 39 seconds after application of DC power. Stop time will be less than 30 seconds after removal of DC power. There is no power control switch on the WREN RUNNER-2 ESDI. Power Sequencing ---------------- Power sequencing is not required for the WREN RUNNER-2 ESDI. The drive protects against inadvertent writing during power up and down. Daisychain operation requires that power be maintained on the terminated unit to ensure proper termination of the peripherals I/O cables. Temperature ----------- The drive will meet all specifications over a 50* F to 122* F (10* C to 50* C) ambient temperature range with a maximum gradient of 36* F (20* C) per hour. The enclosure for the drive should be designed such that the temperature at the locations are not exceeded. A small amount of wir flow may be needed to chieve these temperatures values. Electromagnetic Susceptibility ------------------------------ As a component assembly, the wREN RUNNER-2 EDSI is not required to meet any susceptibility performance requirements. It is the responsibility of the system integrator to perform those tests re- quired to assure that equipment operating in the same system as the WREN RUNNER-2 ESDI does not adversely affect the performance of the WREN RUNNER-2 ESDI. Heat/Power Dissipation ---------------------- Each WREN RUNNER-2 ESDI will dissipate no more than 32.0 watts (125 BTUs per hour) of DC power average. Typical power dissipation under idle operating conditions is less than 27 watts. Air Cleanliness --------------- The WREN RUNNER-2 ESDI is designed to operate in a typical office environment with minimum environmental control. Options ------- All options are either incorporated or packaged at the manufacturing facility. Front Panel ----------- The WREN RUNNER-2 ESDI is available with a black front panel. The panel has a window through wich a single red* LED shows from its mounting on the Main PWA. The LED, when glowing, indicates the presense of a nonrecoverable fault. A fault indication is displayed irrespective of Drive Select status. *Green for Amber LED indicator will be available, but must be specified when ordering units. Reliability ----------- The following reliability specifications assume correct host/drive operational interface has been implemented, including all interface timings, power supply voltages, and environmental conditions. MTBF 100,000 hours Service Life 5 years Preventive Maintenance None required