S T 4 2 1 0 1 N SEAGATE NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/FH Cylinders 2573| | | Capacity form/unform 1900/ 2200 MB Heads 15| | | Seek time / track 12.9/ 2.0 ms Sector/track | | | Controller SCSI2 SI/FAST Precompensation Cache/Buffer 256 KB LOOK-AHEAD Landing Zone Data transfer rate 3.875 MB/S int Bytes/Sector 512 10.000 MB/S ext SYNC Recording method RLL 1/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C | Power: sleep W Humidity % | standby W Altitude km | idle W Shock g | seek 23.0 W Rotation RPM 3600 read/write W Acoustic dBA spin-up W ECC Bit 64 MTBF h 150000 Warranty Month 12 Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST42101N/ND PRODUCT DESCRIPTION +---------------------------------------------------------+ | +-+ |+-1 | | | J6 || |J4 | +-+ |+-+ | ++ |XX | || |XX | || |XX | Terminator +1 |XX J3 | resistor ++ |XX SCSI | (SIPs) || |XX I/O | || |XX | +1 |XX | ++ |XX | || |XX | || |X1 | +1 | | +-+J7 |XX Power | +-+ LED |XX +---------------------------------------------------------+ 1 ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST42101N/ND PRODUCT DESCRIPTION Jumper setting ============== J4 SCSI ID/Option Select Header ------------------------------- +----- |O O O -PWA---+-2--4--6--8--10-12-14-16-18-20+----+ | o o o o o o o o o o | |O O | o o o o o o o o o o | +----- +-1--3--5--7--9--11-13-15-17-19+ | | +--+--+ | | | +--+-- Synchronous Spindle option | | | | | +-------- Motor Start Delay (16s * ID) | | | | +----------- Parity check enable | | | +-------------- Motor start option enable | | +-------------------- SCSI ID | +-------------------------- Terminator power +----------------------------- Terminator power J4 1-2/3-4 Terminator Power ----------------------------- +-2-4--- +-2-4--- +-2-4--- | X o | o X | o o | X o | o X | xxx +-1-3- +-1-3- +-1-3- Terminator Power Terminator Power Terminator Power from Drive to SCSI Bus from SCSI Bus (DEFAULT) 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. J4 15-16 Motor Start Delay --------------------------- Jumper on enables delayed motor start (Motor Start jumper must be off). Motor start up is delayed 16 times drive ID number in seconds; i.e., Drive 0 starts immediately, Drive 1 starts 16 seconds later, Drive 2 starts 16 seconds after Drive 1, etc. J6 Write Protect/Remote LED Header ----------------------------------- +------- GND Pin 1 (+5V) Remote LED +----+----+ connection | 2 o x +---- Reserved | 1 o x +---- Reserved +----+----+ +------- Write Protect Remote The Write Protect/Remote LED Header is a 6-pin, 3 jumper (or connector) position header behind the front panel at the right side of the drive, opposite the LED. The pins are on 0.100 inch (2.54 mm) centers both vertically and side to side. A suggested mating two pin connector is the DuPont Mini Latch housing P/N 65291-008 or equivalent. The drive front panel must not be present in order to access the header. For a remote LED capability, plug the remote LED cable connector vertically to the leftmost two pins of the header. The center two pins provide a drive write protect capability. A shorting jumper plug may be plugged vertically onto these two pins to write protect the drive or a two-pin cable connector may be plugged there to connect the two pins to a remote Write Protect switch. The rigthmost two pins are RESERVED for factory use only. 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 Note: Pins on the drive select and configuration select header are provided to facilitate manual drive configuration. No devices other than jumpers should be connected to these pins. Improper connection to external devices (switches, connectors, etc.) could adversely affect drive performance. Exact location of these pins and headers may change without notice.