D 5 1 2 7 H NEC NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/HH Cylinders 615| | | Capacity form/unform 33/ 38 MB Heads 4| | | Seek time / track 40.0/ 8.0 ms Sector/track 26| | | Controller RLL / ST506 Precompensation Cache/Buffer KB Landing Zone 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 | Power: sleep W Humidity % | standby W Altitude km | idle W Shock g | seek W Rotation RPM 3600 read/write W Acoustic dBA spin-up W ECC Bit MTBF h Warranty Month Lift/Lock/Park NO Certificates ********************************************************************** L A Y O U T ********************************************************************** NEC D5127/5147H PRODUCT DESCRIPTION +---------------------------------------------------------+ | |XX | |XXJ2 | |XX 20-P | PWB |2X | Terminator +-------+ |x J4 | Resistor | SW1 |1 | Ground | ON/OFF Switch-------+ |XX | |XX | |XXJ1 | |XX | Drive Address---+ |XX 34-P | Switch | SW2 |1 |XX | +-----+ |XX | |2X | | | |XXPower | |XXJ3 +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** NEC D5127H/5147H PRODUCT DESCRIPTION Jumper Setting ============== Switch1 - 1, 2, 3, 4 Drive Select ---------------------------------- +----------+--------------------------------+ | Drive | SWITCH 1 | | Select | SW1 | SW2 | SW3 | SW4 | +----------+-------+-------+-------+--------+ | 1 | CLOSED| OPEN | OPEN | OPEN | +----------+-------+-------+-------+--------+ | 2 | OPEN | CLOSED| OPEN | OPEN | +----------+-------+-------+-------+--------+ | 3 | OPEN | OPEN | CLOSED| OPEN | +----------+-------+-------+-------+--------+ | 4 | OPEN | OPEN | OPEN | CLOSED | +----------+-------+-------+-------+--------+ Switch1 - 5, 6, 7 Not USED! --------------------------- Switch1 - 8 Radial, daisy chain mode ------------------------------------- CLOSED Drive configured for radial mode. OPEN Drive configured for daisy chain mode. Switch2 - 1-8 Termination ------------------------- All jumpers CLOSED Termination is enabled ********************************************************************** F E A T U R E S ********************************************************************** NEC D5127H/5147H PRODUCT DESCRIPTION Seek Time --------- | D5147 | | D5127 | ----------------------------------+--------+ Track-to-Track msec. typ. | 8 | Average msec. typ. | 40 | Average msec. max. | 70 | ----------------------------------+--------+