W R E N V F H 9 4 1 8 1 - 3 8 5 H CDC NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 791| | | Capacity form/unform 330/ 385 MB Heads 15| | | Seek time / track 10.7/ 3.0 ms Sector/track 55| | | Controller SCSI1 SINGLE-ENDED Precompensation Cache/Buffer 32 KB LOOK-AHEAD Landing Zone Data transfer rate 1.875 MB/S int Bytes/Sector 512 4.700 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 21.0 W Shock g 10 | 32 seek W Rotation RPM 3600 read/write W Acoustic dBA spin-up 59.0 W ECC Bit MTBF h 100000 Warranty Month Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST4385N PRODUCT SPECIFICATION +---------------------------------------------------------+ | |+-+ | || |J4 | |+-+ | see Note (1)++ |XX | || |XX | || |XX | Terminator +1 |XX J3 | resistor (1)++ |XX SCSI | (SIPs) || |XX I/O | || |XX | +1 |XX | (1)++ |XX | || |XX | || |XX1 | +1 | | |XX Power | |XX +---------------------------------------------------------+ 1 NOTE If you have #77701215k silk-screened near the 50-pin SCSI cable connector, the pin-1 for the 3 terminating resistors is away from the DC power connector. ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST4385N PRODUCT SPECIFICATION Jumper setting ============== J4 SCSI ID/Option Select Header ------------------------------- +----- |O O O -PWA---+2--4--6--8--10-12-14-16----+ |o o o o o o o o| |O O |o o o o o o o o| +----- +1--3--5--7--9--11-13-15 | | +--+--+ | | +-------- RESERVED (some PWA's do not | | | | | have these pins) | | | | +----------- Parity check enable | | | +-------------- Motor start option enable | | +-------------------- SCSI ID | +-------------------------- Terminator power +----------------------------- Terminator power J4 1-2/3-4 Terminator Power ----------------------------- +-2-4--- +-2-4--- | X x | o x | X o | xxx +-1-3- +-1-3- Terminator Power Terminator Power from Drive from SCSI Bus J4 SCSI ID ----------- +----------+-----------------------+ | SCSI ID | Jumpers | | | 5-6 | 7-8 | 9-10 | +----------+-------+-------+-------+ | 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| +----------+-------+-------+-------+ J4 11-12 Motor Start Option --------------------------- 11-12 CLOSED Enables the Motor Start Option. In this mode of operation the drive will wait for a Start Unit Command from the Host before starting the Motor. J4 13-14 Parity Check ---------------------- 13-14 CLOSED Parity checking is enabled. 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 The drive is already low-level formatted at the factory.