R O 2 0 4 E RODIME NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 640| | | Capacity form/unform 42/ 53 MB Heads 8| | | Seek time / track 60.0/ 8.0 ms Sector/track 32| | | Controller MFM / ST506 Precompensation Cache/Buffer KB Landing Zone 639 Data transfer rate 0.625 MB/S int Bytes/Sector 256 0.625 MB/S ext Recording method MFM 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 3 | 30 seek W Rotation RPM 3600 read/write W Acoustic dBA spin-up W ECC Bit 24 MTBF h 12000 Warranty Month Lift/Lock/Park NO Certificates ********************************************************************** L A Y O U T ********************************************************************** RODIME RO 200E SERIES USER MANUAL P/N USM0038 REV. B +---------------------------------------------------------+ | |XX J3 | |XX Power | | | |XX | ++ |XX | Terminator| |XX | Restistor|| |XX J1 | Pack || |XX | ++ |XX | 1-+ |XX | Drive | | | | Select| | | | Switch+-+ |XX | |XX J2 | |XX | |XX | |XX +---------------------------------------------------------+ +--------------------------------------+ | | | | | Drive | | Select | +------+----1-+Terminator-++-----------+ | +----+ +--------+ +J4 Ground | | | | J2 J1 J3 | +..........--XXXXXXXXXXXXXXXXX-XXXXXXXX+ +--Data---------Control---------Power--+ ********************************************************************** J U M P E R S ********************************************************************** RODIME RO 200E SERIES USER MANUAL P/N USM0038 REV. B Jumper Setting ============== Drive Select ------------ Up to four drives may be connected to one host in a "daisy-chain" fashion. A 4-pole drive select switch is fixed to each drive. To identify a drive as number 1, close the first pole of this switch nearest the terminator pack. Similarly for drives 2, 3 and 4. Only ONE pole should be in the closed position. All "daisy-chained" drives should have the line terminator pack removed except for the last drive in the chain. All drives are supplied for single usage, that is, pole 1 is closed and the terminator pack is present. +------+------+------+------+------+ |Drive |Pole |Pole |Pole |Pole | |Select| 1 | 2 | 3 | 4 | +------+------+------+------+------+ | 1 |CLOSED|OPEN |OPEN |OPEN | +------+------+------+------+------+ | 2 |OPEN |CLOSED|OPEN |OPEN | +------+------+------+------+------+ | 3 |OPEN |OPEN |CLOSED|OPEN | +------+------+------+------+------+ | 4 |OPEN |OPEN |OPEM |CLOSED| +------+------+------+------+------+ J3 DC Power and pin connector assignments ------------------------------------------- +------------+ 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 200E SERIES USER MANUAL P/N USM0038 REV. B 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 Side brackets with tapped holes (6/32" UNC) are provided with each drive and permits base or side mounting. These brackets are fixed to the drive chassis via shock-absorbing grommets. 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. Connectors ---------- The RO 200E drive interfaces to host systems via ST506 interface which has become an accepted standard for 5 inch Winchester disc drives. There are separate connectors for data (MFM code), for control lines and for DC power. A chassis ground tab is also provided. The convention for control is that a TTL logical zero is false and a TTL logical one is false. Up to four drives may be connected to a host system and each drive is provided with a four- pole switch for selection. The control lines may be daisy-chained but the data lines MUST be radially (individually) connected to the host. Control signals for the drive are provided via the 34 pin edge connector (P1/J1). The pins are numbered 1 through 34 with the even pins located on the solder side of the board. Pin 2 is located on the end of the board connector closest to the DC power connector and is labelled. A key slot is provided between pins 4 and 6. The recommended mating connector is AMP ribbon connector A/N 88373-3. Radial connection of read/write data signals is provided via a 20 pin edge connector (P2/J2). The pins are numbered 1 through 20 with the even pins located on the solder side of the board. The recommended mating connector is AMP ribbon connector A/N 88373-6. DC power is provided via a 4 pin AMP Mate-N-Lok connector (P7/J7) P/N 350211-1, or equivalent, mounted via the solder side of the board. The recommended mating connector is AMP P/N 1-480424-0 utilising AMP pins P/N 350078-4. A ground connection is provided via a "Faston" connector AMP P/N 61664-1 located on a metal stand-off on the chassis between the power and control signal connectors. However, the DC and chassis grounds are common on the drive and the use of the "Faston" connec- tor is not essential. The frame ground of the host system should be aproperly earthed. In general, any controller which will operate with the RO 100 and RO 200 series disk drives will also operate with the RO 200E series disk drive. However, the controller must be able to address up to 640 cylinders and set the STEP interval in the range 5 s to 5ms. Cable Interconnection - 4 Drive System -------------------------------------- HOST +-----------+ +-----------------+ | +---o---Control------------------+J1 Drive 1 | | | | +-------Data------------+J2 | | | | | +-Power---+J3 J4 | | | | | | +-----+-----------+ | | | | | +-Frame----+ | | | | | | +-----------------+ |Controller | o----+-------------+----+----+J1 Drive 2 | | | | | +-----------+----+----+J2 | | | | | | o----+----+J3 J4 | | | | | | | | +----+------------+ | | | | | | o---------+ | | | | | | | +-----------------+ +-----------+ o----+-+-----------+----+----+J1 Drive 3 | | | | | | +---------+----+----+J2 | | +---+----+ | | o----+----+J3 J4 | | +---+------+ | | | +-----+-----------+ | | | | | o----------+ |Data +---+--------+ | | +-----------------+ |Separator | +------------------+----+----+J1 Drive 4 | | +----------------------+----+----+J2 | | | o----+----+J3 J4 | +-----------+ | | +-----+-----------+ DC voltages----+ o----------+ | +------- Frame Ground Note that, in the multiple drive configuration all data interface lines are radially connected to the host. Drive Control Interface ----------------------- All input lines on the control interface are terminated by a 220 ohm resistor to +5V, and a 330 ohm resistor to logic ground. The input line receivers and output line drivers are 74LS244 buffers with tri- state outputs. ********************************************************************** F E A T U R E S ********************************************************************** RODIME RO 200E SERIES USER MANUAL P/N USM0038 REV. B Introduction ------------ The Rodime RO 200E series of 5 inches (130 mm) Winchster disk drives provides fast access data storage for use with small business computers, terminal and microprocessor based systems. There are four models in the series, RO 201E, RO 202E, RO 203E and RO 204E. Seek Time --------- +----------------------------------+--------+ | | RO 200 | +----------------------------------+--------+ |Track-to-Track msec. typ. | 8 | +----------------------------------+--------+ |Average msec. typ. | 60 | | msec. max. | 130 | +----------------------------------+--------+ |Latency msec. avg. | 8.3 | +----------------------------------+--------+ Indicator and Fault Codes ------------------------- Two red LED's fixed to the master electronics board are visible through the facia when they are illuminated. The "Power-On" LED is on when the drive is READY with no error condition present. It is also used to indicate fault conditions to the driev. The "Select" LED is on when the drice is selected by the host provided the "Power-On" LED is on. The "Power-On" LED is positioned closest to the centre of the facia. It is used to flash error messages should certain fault conditions arise on the drive. A four bit binary code is used (long flash = logical 1, short flash = logical 0) with the most significant bit occurring first: e.g. Short, short, long, short = 2 (0010) +------------+--------------------------------------------------+ | Fault Code | Description | +------------+--------------------------------------------------+ | 01 (0001) | No index track data burst | +------------+--------------------------------------------------+ | 02 (0010) | No Flag zero | +------------+--------------------------------------------------+ | 03 (0011) | Motor speed outside +/- 1% tolerance at end of | | | power-up sequence | +------------+--------------------------------------------------+ | 04 (0100) | Motor speed outside +10%, tolerance in normal | | | operation | +------------+--------------------------------------------------+ | 05 (0101) | Flag zero stays TRUE | +------------+--------------------------------------------------+ | 06 (0110) | STEP received while WRITE GATE is TRUE | +------------+--------------------------------------------------+ | 07 (0111) | WRITE FAULT | +------------+--------------------------------------------------+ | 08 (1000) | Not used | +------------+--------------------------------------------------+ | 09 (1001) | Not used | +------------+--------------------------------------------------+ | 10 (1010) | No INDEX | +------------+--------------------------------------------------+ | 11 (1011) | Motor not up to speed | +------------+--------------------------------------------------+ Fault codes 1, 2, 3, 5, 10 and 11 are monitored during the initial power-up sequence of the drive. The remaining codes, namely 4, 6 and 7 are constantly monitored during normal operation. All fault codes are latched by the processor and the drive must be restarted to clear. Codes 3, 4, 10 and 11 generate an interface WRITE FAULT as do those fault conditions leading to code 7. Illegal Address Map ------------------- Each drive is accompanied by a map indicating the addresses of sectors which should not be used by the host. This map (label) is fixed to the base casting wall. These illegal sectors have been identified during unit test in the factory and contain a repeatable disk defect, greater than one bit in length. No such illegal address will exist in cylinders 0, 1 and 2. An illegal address is specified by cylinder, head and sector. It should be noted that the format used for this purpose is 33 sectors of 256 bytes each. The maximum number of illegal addresses is: Model Number 201E 202E 203E 204E Max. number of illegal addresses 5 10 15 20 Precompensation --------------- Precompensation of write data is recommended to be applied to all cylinder.