R O 3 0 8 5 S RODIME NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/HH Cylinders 750| | | Capacity form/unform 69/ 86 MB Heads 7| | | Seek time / track 28.0/ 7.0 ms Sector/track 26| | | Controller SCSI1 SINGLE-ENDED Precompensation Cache/Buffer 4 KB FIFO BUFFER Landing Zone Data transfer rate 0.938 MB/S int Bytes/Sector 512 MB/S ext Recording method RLL 2/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 50 | Power: sleep W Humidity % 10 85 | standby W Altitude km | idle W Shock g 10 | 50 seek W Rotation RPM 3533 read/write W Acoustic dBA spin-up W ECC Bit 32 MTBF h 20000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** RODIME RO 3000S SERIES USER MANUAL USM 00176 REV. 1 +---------------------------------------------------------+ P2 | +-P5--+ |XX Power |++LED +-----+ |+-+ |++ +-P6--+ || |P4 | +-----+ ++ |+-1 | || |XX Inter- | || |XX face | ++ |XX | ++ |XX | +--+ Terminator|| |XX P3 | | | Packs || |XX | | P1 ++ |XX | | | +---------+ ++ |XX | | | |Firmware | || |XX | +--+ | | || |XX | +---------+ ++ |XX | |XX1 +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** RODIME RO 3000S SERIES USER MANUAL USM 00176 REV. 1 Jumper Setting ============== P4 SCSI ID Selection --------------------- +--------+-------+-------+-------+ |Drive ID| 1-2 | 3-4 | 5-6 | +--------+-------+-------+-------+ | 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| +--------+-------+-------+-------+ J2/P2 DC Power and pin connector assignments -------------------------------------------- +--------------+ |+-----J3-----+| pin 1 +12 VDC || 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 ********************************************************************** RODIME RO 3000S SERIES USER MANUAL USM 00176 REV. 1 Notes on Installation ===================== Recommended 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 A sub-frame with tapped holes is provided with each drive and permits base or side mounting. The frame is fixed to the module via shock- absorbing mounts. The drive MAY BE ORIENTED IN ANY AXIS. When installing into an enclosure, at least 0.1 inch clearance must be maintained around the entire drive to allow vibration isolation and to prevent obstruction of the breather filter and the creation of ground loops. The drive is mounted using 6-32 inch UNC screws with a maximum thread engagement depth of 0.25 inch. NOTE: The drive installation must provide adequate air flow to ensure that the maximum HDA temperature does not exceed 60*C. Half Height 5.25" Mounting Frame -------------------------------- As an optional extra, a mounting frame is available which when fitted to the drive meets the form factor requirements of a "half height" 5.25 Winchester disk drive. The drive can be mounted using 6-32 inch UNC screws with a maximum engagement depth of 0.25 inch. Multiple Drives --------------- Up to seven drives may be radially connected to a single host adapter. The adapter itself requires a unique SCSI address. RO 3000S assignment is achieved by placing jumpers on the SCSI selector. Connectors ========== DC Power -------- DC power is provided by a four pin AMP Mate-N-Lok connector (P2/J2) part number 350211-1 mounted on the solder side of the board. The recommended mating connector is AMP part number 1-480424-0 utilising AMP pins part number 350078-4. Interface Connector ------------------- The RO 3000S disk drive interfaces to a host using a 50 pin, non- shielded flat ribbon connector. This connector is designated J1 and connects to the drive via connector P1. The pins are numbered 1 through 50. Pin 2 is located on the end of the board furthest from the DC power connector and is marked. The recommended mating connector is 3M ribbon connector. P/N3425-3000. Indicator LED ------------- The drive has a single LED visible through the front facia. This LED will only be on when the drive is selected. At initial switch on the LED will flash on and off until the drive has completed its power-up routine. The LED will them remain off until the drive is selected. The LED is also used to flash fatal error messages if the drive were to develop a fault. Electrical Interface -------------------- The basic operating configuration consists of a host computer, host adapter and the RO 3000S disk drive. The host is a computer system, the host adapter is an interface between the host's and the disk drive. All signals are active low and use open collector drivers. The bus should be terminated at both ends with 220 ohms to +5V and 330 ohms to ground at each end of the cable. Output Characteristics ---------------------- Each signal driven by the RO 3000S has the following output characteristics when measured at the drive's connector. Signal assertion = 0.0 volts dc to 0.4 volts dc. Minimum driver output capacity = 48 milliamps (sinking) at 0.5 volts dc. Signal negation = 2.5 volts dc to 5.25 volts dc. Input Characteristics --------------------- Each signal received by the RO 3000S shall have the following input characteristics when measured at the drive's connector. Signal true = 0.0 volts dc to 0.8 volts dc. Maximum toatl input load = -0.4 milliamp at 0.4 volts dc. Signal false = 2.0 volts dc to 5.25 volts dc. Minimum input hysteresis = 0.2 volts dc. Terminator Power (Optional) --------------------------- The RO 3000S is configured to supply terminator power,(TERMPWR), with the following characteristics. VTERM = 4.0 volts dc to 5.25 volts dc. 800 milliamps minimum source drive capability. 1.0 milliamp maximum sink capability. Hardware Implementation ----------------------- SCSI is implemented on a 50-way bus which has multiple independent interchangable slots. The main advantage of a bus is that several tasks can be interleaved simultaneously on the bus. The RO 3000S may operate in any of the configurations shown. Sample SCSI Configurations -------------------------- Host +--------+Adapter +-----+ Single Initiator, Single Target |Computer| +--------+3000S| +--------+--+SCSI Bus+-----+ Host +--------+Adapter +-----+ Single Initiator, Multi Target |Computer| +-----+--+3000S| +--------+--+SCSI | +-----+ Bus | +-----+ +--+3000S| +-----+ Host +--------+Adapter +-----+ Multiple Initiator, Multiple Target |Computer| +---SCSI-+3000S| +--------+--+ | +-----+ +--------+Host Ad.| +-----+ |Computer| +-----+--+3000S| +--------+--+ | +-----+ | +-----+ +--+3000S| | +-----+ | +-----+ +--+3000S| Host | +-----+ +--------+Adapter | +-----+ |Computer| +-----+--+3000S| +--------+--+ +-----+ Introduction ------------ The RO 3000S interfaces to a host adapter according to the proposed ANSI X3T9.2 Standard (SCSI). The SCSI-bus consists of 18 signal lines. Nine control the bus, nine are used for an 8bit bi-directional data interface, plus a parity bit. All communications on the bus is asynchronously by means of the REQ/ACK handshake. The RO 3000S should be connected to the bus with a 50-pin flat ribbon connector. Single ended drivers and receivers allow a maximum cable length of six metres (20 feet). ********************************************************************** F E A T U R E S ********************************************************************** RODIME RO 3000S SERIES USER MANUAL USM 00176 REV. 1 Model Description ================= The RO 3000S represents Rodime's latest advance in innovative technology, offering an arbitrating 3.5" Winchester disk drive with SCSI (Small Computer System Interface) and embedded drive controller, realising formatted capacities of up to 70MB. Through the use of a rotary voice coil positioner and a closed loop servo positioning system the RO 3000S brings true high performance and reliability to mini and micro computer systems. Other design features include a 4 Kbyte, FIFO data buffer for rapid data transfers and complete host software device independence by implementation of a common command set. The drive and controller use VLSI and surface mounted component techniques to contain these features within the standard 3.5" form factor. Like all Rodime's disk drives, the new series features rugged construction and few internal parts making them suitable for the harsh environment encountered by portable computers. ECC Error code correction -------------------------- Error code correction (ECC) is a function of the disk controller circuit. Serial data is run through a 32 bit ECC generator. The poly- nomial used will correct up to 11 bit single burst errors and can detect double burst errors. Defect Handling Overview ------------------------ Rodime undertakes testing on the RO 3000S disk drive, using both analogue and disgital techniques, to identify suspect areas on the disk surface. These are known as media defects and are considered to be unreliable areas on the disk surface, for data recording purposes. These media defects are printed on a label fixed to the top cover of the drive. This defect map, as it is known, specifies defects in terms of cylinder, head and bytes from index. The exact location of a disk flaw will always be the same, as index is a timing signal which marks a fixed reference point of the drive. This same information is also recorded on a special maintenance track on the drive. Factory Test ------------ During the Rodime factory test, the RO 3000S is formatted using 512 bytes per sector. This realises 26 sectors per track, plus one spare sector a total of 27 sectors per track. The drive is now formatted and fully tested allowing the initiator access to all physical sectors. Any defective sectors are marked as bad. An algorithm then calculates the optimum sector layout to skip any bad sector and conform to the interleave factor. Error Conditions ---------------- If a fatal error occurs the drive will remove power from both the voice coil and spindle motors and flash an error code on the front panel LED. A four bit binary code is used to display the error (long flash = logical 1, short flash = logical 0) with the most significant bit (MSB) occuring first. +-----+------+--------------------------------------------------+ |Fault|Binary| Description | |Code | | | +-----+------+--------------------------------------------------+ | 01 | 0001 | The drive has detected that the spindle motor is | | | | out of tolerance (+/- 10%) | +-----+------+--------------------------------------------------+ | 02 | 0010 | Drive fails self test (ROM) | +-----+------+--------------------------------------------------+ | 05 | 0101 | Drive fails self test (RAM) | +-----+------+--------------------------------------------------+ | 06 | 0110 | No track zero | +-----+------+--------------------------------------------------+ | 07 | 0111 | The spindle motor did not start at power up | +-----+------+--------------------------------------------------+ | 08 | 1000 | The spindle failed initial +/- 1% speed check | | | | at power up | +-----+------+--------------------------------------------------+ | 10 | 1010 | No track crossing detected during a seek | +-----+------+--------------------------------------------------+ | 11 | 1011 | No servo data | +-----+------+--------------------------------------------------+ | 12 | 1100 | +12V supply failure | +-----+------+--------------------------------------------------+ NOTE: All the above fault codes are regarded as Fatal and resetting the drive can only be achieved by power off, then on again, or by asserting and releasing the SCSI RESET signal. Seek Time --------- +----------------------------------+--------+ | | RO3000S| +----------------------------------+--------+ |Track-to-Track msec. typ. | 7 | +----------------------------------+--------+ |Average msec. typ. | 28 | | RO 3057S msec. max. | 58 | | RO 3085S msec. max. | 60 | +----------------------------------+--------+ |Latency msec. avg. | 8.73 | +----------------------------------+--------+