M 2 2 4 3 R FUJITSU NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/HH Cylinders 1186| | | Capacity form/unform 105/ 130 MB Heads 7| | | Seek time / track 25.0/ 5.0 ms Sector/track 26| | | Controller RLL / ST506 Precompensation 576 Cache/Buffer KB Landing Zone 1185 Data transfer rate 0.938 MB/S int Bytes/Sector 512 0.938 MB/S ext Recording method RLL 2/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 5 45 | -40 60 Power: sleep W Humidity % 20 80 | 5 95 standby W Altitude km 3.000| 12.000 idle W Shock g 2 | 20 seek W Rotation RPM 3600 read/write 18.0 W Acoustic dBA 45 spin-up W ECC Bit MTBF h 30000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** FUJITSU M2243T/R OEM MANUAL 41FH5014E-03 +---------------------------------------------------------+ | |XX B | |XX cable | 8-+ |XX edge | (Terminator)| | |XX 20-pin | SW2 | | |XX | 1-+ | | 1-+ |XX A | | | |XX cable | SW1 | | |XX edge | 8-+ |XX 34-pin | |XX | |XX | |XX | | | |XX | |XX Power | | +---------------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** FUJITSU M2243T/R OEM MANUAL 41FH5014E-03 Jumper setting ============== x = Jumpers are set at factory Should not operate hatched short plug switches other than SW1 and SW2. SW1 Drive selection -------------------- Drive Number 1 2 3 4 ------------------------------------------------- x 1 CLOSED OPEN OPEN OPEN ------------------------------------------------- 2 OPEN CLOSED OPEN OPEN ------------------------------------------------- 3 OPEN OPEN CLOSED OPEN ------------------------------------------------- 4 OPEN OPEN OPEN CLOSED Plug 1 to 4 are used to select one of up to four drives. The relevant plug is to be set "CLOSED" while the others should be set "OPEN". SW1 Control of Drive Selected Signal -------------------------------------- 5 CLOSED A drive is in a selected state regardless of Drive Select 1 to 4, which means Drive Selected signal is always true and all Input/Output signals are validated without selecting the drive. x OPEN Drive Selected signal becomes true and all input/ output signals are validated only when a drive is selected with Drive Select 1 to 4. SW1 Control of Motor On signal -------------------------------- 6 OPEN 7 CLOSED By the Motor On signal x 6 CLOSED x 7 OPEN When the power-on x 8 CLOSED Reserved Plugs 6 and 7 are used to select the DC motor starting either by the Motor On signal or not. SW2 Terminating the Control Signals ------------------------------------- This switch is used to terminate the control signals. Keys 1 to 8 in SW2 of the last drive must be set to "ON" (in other drives, must be set to "OFF"). x All keys are set to "ON". Power supply connector ---------------------- 1 = +12V +------------+ 2 = +12V Return | 4 3 2 1 | 3 = + 5V Return +------------+ 4 = + 5V ********************************************************************** I N S T A L L ********************************************************************** FUJITSU M2243T/R OEM MANUAL 41FH5014E-03 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! The drive may be installed in its locker either vertically or horizontally. The drive should not be positioned with the PCA on top. Ambient temperature ------------------- The operating termperature range of the drive is specified at a distance of 3 cm from the drive. Cable connection ---------------- The drive is interfaced to a system through four connectors. Connection ---------- To connect two to four drives, the A cable (control signals) must be connected in series and the B cable (R/W signals) in parallel. The termination of control signals must be performed only at the last drive. +-------------+ +--------------+ | +-A-cable--*---+ Drive 1 +---------------------+ | +-B-cable--+---+ | | | | | +--------------+ | | | *---+ Drive 2 +-----------------+ | | +-B-cable--+---+ | | | | Controller | | +--------------+ | | | | *---+ Drive 3 | | | | +-B-cable--+---+ +------------+ | | | | | +--------------+ | | | | | +---X Drive 4 | | | | | +-B-cable------+ +--------+ | | | | | +--------------+ | | | | +-------------+ | | | | | +-------Power-cable--------------------+ | | | | | | | | | +-------Power-cable------------------------+ | | | Power supply| | | | +-------Power-cable-----------------------------+ | | | | | +-------Power-cable---------------------------------+ +-------------+ Frame structure --------------- The disk enclosure (signal ground) is electrically isolated from the drive mounting frame (frame ground). When mounting the drive in a cabinet frame, the frame should clear the drive by at least 3.5 mm to prevent the drive from touching the cabinet frame. An the locker frame should clear the drive upper and lower side at least 2.5 mm. In case of horizontally mount, do not mount the heating materials at drive lower side. Noise filter ------------ To eliminate AC line noise, a noise filter of the specifications given below should be incorporated in the AC input terminal of the disk drive power supply. Attenuation characteristic: 40 dB or greater at 10MHz Circuit configuration: T type ********************************************************************** F E A T U R E S ********************************************************************** FUJITSU M2243R/T OEM MANUAL 41FH5014E-03 Media error ----------- Cylinder 0 is defect free. The number of defect is 86 or less in the drive and the number of defects per one head is 25 or less. Mean Time Between Failures (MTBF) --------------------------------- The MTBFs of the drive during their life time are 30,000 hours estimated value after an initial period of 3-month. Failure of the equipment means failure that requires either repairs, adjustments, or replacement. Mishandling by the operator, failures due to bad environmental conditions, power trouble, controller trouble, cable failures, or other failures no caused by the equipment are not included. Mean Time To Repair ------------------- MTTR is the average time taken by well-trained service mechanic to diagnose and repair a drive malfunction. The drive is designed for a MTTR of 30 minutes or less. Service life ------------ Overhaul of the drive is not required for the first five years. Preventive Maintenance ----------------------- Preventive Maintenance is unnecessary. Power loss ---------- Integrity of the data on the disk is guranteed against all froms of abnormal DC power failure except a power failure during writing. DC Power -------- The direct-drive DC motor requires no adjustment for line frequencies (50 Hz/60 Hz) or input power voltages (100, 115, 220 or 240 V). Power consumption: Steady state 18 W. Write Precompensation --------------------- Whenever two bits are written in close proximity to each other, a phenomenon called pulse superposition occurs, which tends to cause the two bits to move away from each other. This is a factor contributing to bit shift. The effect of bit shift can be reduced by a technique called pre- compensation, which, by detecting which bits will occur early and which bits will occur late, can effectivly minimize the shift by writing these bits in the opposite direction of the expected shift. M2243T...Performance without writeprecompensation is guranteed. M2243R...Precompensation had better done at 576 1185 cylinders. The optimum amount of precompensation is 7 nanoseconds. Spindle motor ------------- The disks are turned by a direct-drive DC motor. The motor attains a very precise rotational speed of 3600 rpm, 1%. This precision in achieved through a feedback circuit which includes Hall-effect elements mounted within the motor assembly. Start and stop time ------------------- Start time (time from when power is turned on until the unit is ready) is 20 seconds or less and stop time (time to completely stop when power is turned off) is 15 seconds or less using dynamic braking.