S T 3 2 8 3 N SEAGATE NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/SLIMLINE Cylinders 1691| | | Capacity form/unform 249/ MB Heads 5| | | Seek time / track 12.0/ 4.0 ms Sector/track 57| | | Controller SCSI2 SINGLE-ENDED Precompensation Cache/Buffer 128 KB LOOK-AHEAD Landing Zone Data transfer rate 3.000 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 5 50 | -40 70 Power: sleep W Humidity % | standby 1.0 W Altitude km | idle 3.5 W Shock g 10 | 75 seek 5.7 W Rotation RPM 4500 read/write 5.0 W Acoustic dBA spin-up W ECC Bit MTBF h 200000 Warranty Month 12 Lift/Lock/Park YES Certificates ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST3283N INSTALLATION GUIDE 36190-001, REV.A +---------------------------------------------------------+ | +----+J5 |XX | +----+ |XX | ++ |XX | || |XX | || |XX | 1++ |XX | 110 Ohm ++ |XX | Terminator || |XX |+--+ Resistor || |XX || | Packs 1++ |XX J4 || |J8 ++ |XX I/O |+--1 || |XX | || |X1 |+---+J7 1++ | |+---+ |XX +-----+ J9+------+ +--+J6 |XX Power | +------+ +--+ |XX J3 +---------------------------------------------------+ ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST3283N INSTALLATION GUIDE 36190-001, REV. A Jumper setting ============== J3 DC Power and Pin Connector Assignment ----------------------------------------- +------------+ | 1 2 3 4 | +-+--+--+--+-+ | | | +----- + 5 VDC | | +-------- + 5 Volts Return | +----------- +12 Volts Return +-------------- +12 VDC J5 SCSI ID Address Jumper Block -------------------------------- Ground+-2--4--6-+ +---------+ MSB | o o o | SCSI ID = 0 | o o X | SCSI ID = 1 Signal| o o o | | o o X | +-1--3--5-+ +---------+ Ground+---------+ +---------+ MSB | o X o | SCSI ID = 2 | o X X | SCSI ID = 3 Signal| o X o | | o X X | +---------+ +---------+ Ground+---------+ +---------+ MSB | X o o | SCSI ID = 4 | X o X | SCSI ID = 5 Signal| X o o | | X o X | +---------+ +---------+ Ground+---------+ +---------+ MSB | X X o | SCSI ID = 6 | X X X | SCSI ID = 7 Signal| X X o | | X X X | +---------+ +---------+ If you are installing only one drive, use SCSI ID 0 (no jumper installed). If you install a second drive, you can use any ID (SCSI ID 1 is recommended). J6 Terminator Power Jumper Block --------------------------------- +3--1+ |o o| |o o| +4--2+ +3--1+ From SCSI +3--1+ From Power +3--1+ To SCSI Connector |o X| Conector |xxxx| Connector |X o| Only |o X| |o o| |X o| +4--2+ +4--2+ +4--2+ +3--1+ From Power +3--1+ Terminating |X X| Connector |o o| Resistors |X X| and to SCSI |xxxx| not Installed +4--2+ Bus +4--2+ J7 Parity/Remote Start Jumper Block ------------------------------------- +3--1+ OPEN +3--1+ Parity +3--1+ Remote Start |o o| (Default) |o X| Enabled |X o| Enabled |o o| |o X| |X o| +4--2+ +4--2+ +4--2+ J8 Options Jumper Block ------------------------- 13 11 9 7 5 3 1 +---------------------+ | o o o o o o o | | o o o o o o o | +---------------------+ 14 12 10 8 6 4 2 Pin Function ------------------------------------- 3 Removed for Key 9 Clock Ground 10 External Spindle Clock Sync. 13 Remote LED- 14 Remote LED+ Note: All other pins are factory use only! Spindle motor synchronization ----------------------------- You can synchronize the spindle motors of an array of drives by connecting a twisted pair to each drive. Use one strand of the twisted pair to connect together Pin 9 of the options jumper block of each drive. Use the other strand to connect together pin 10 of the options jumper block of each drive. The maximum cable length is 6 feet (1.8 meters). Installing a remote LED ----------------------- If you want to attach a remote LED to your ST3283A drive, attach a two-pin connector to Pins 13 and 14 of the Options jumper block. J9 Active/Passive Termination Jumper Block ------------------------------------------- +-5--3--1-+ +2.85 V to +-5--3--1-+ Power and Ground | o o X | 110 Ohms | X o o | to 220/330 Ohms | o o X | (Default) | X xxxxx | +-6--4--2-+ +-6--4--2-+ If you removed the terminating resistors from the drive according to the instructions in the previous step, skip this step. If you are using Fast SCSI transfer rates, use the default Active/ Passiv Termination jumper setting. If you are not using fast SCSI transfer rates and both ends of the I/O cable are terminated by resistors of equal value, also use the default setting. If the host adapter contains 220/330-Ohm resistors that cannot be removed and replaced with 110-Ohm resistors, set the drive termination power option to "Power and Ground" to 220/330 Ohms". Remove the jumper from Pins 1 and 2 and install jumpers on Pins 2 and 4 and Pins 5 and 6 of the Active/Passive Termination jumper block. Then, replace the 110-Ohm terminators provided with the drive with 220/330-Ohm terminators. ********************************************************************** I N S T A L L ********************************************************************** SEAGATE ST3283N INSTALLATION GUIDE 36190-001, REV. A Drive Orientation ================= You can mount the drive in any orientation provided you do not mount it more than 5* from a vertical or horiuontal axis. Note: Regardless of which set of holes you use, use only three mounting screws. Bottom mounting holes --------------------- Use 6-32 UNS screws in three of the four available bottom mounting holes. Do not insert the bottom mounting screws more than 0.20 inches (6 turns) into the drive frame. If you use a screw that is too long, you could damage the drive. Side mounting holes ------------------- Use 6-32 UNS screws in three of the six available side mounting holes. Make sure your installation adheres to the following guidelines: - Do not use all three mounting holes on the same side of the drive. - Use one or both of the following: the side mounting hole near the power connector or the side mounting hole (on the other side of the drive) near the interface connector. - Use at least one, but no more than two, of the other four side mounting holes. Do not insert side mounting screws more than 0.13 inches (4 turns) into the drive frame. If you use a screw that is too long, you cold damage the drive. Terminating resistors --------------------- I/O termination consists of three resistor packs, called terminators, that plug into sockets on the printed circuit board. If you are installing only one drive, leave the terminators installed. If you are installing multiple drives, remove the termina- tors from all drives except the last drive connected to the end of cable. If your application requires no terminators remove the terminators from the circuit board. (Merely removing the terminator power source selection jumper does not disconnect the terminator resistors from the circuit). Connect the 50-pin SCSI cable ----------------------------- It migth be easier for you to connect the cable before installing the drive and fastening the drive mounting screw. Note the location of Pin 1. ********************************************************************** F E A T U R E S ********************************************************************** SEAGATE ST3283A/ST3283N INSTALLATION GUIDE 36190-001, REV. A Overview -------- The ST3283A drive is designed for AT (286, 386, and 486) systems. The ST3283N drive is intended for IBM and compatible computers, Macintosh, and other SCSI systems. Low-level formatting ------------------- St3283 family drives are low-level formatted at the factory to 512 bytes per sector. You do not need to low level AT drives. However, SCSI drives may require low-level formatting when used with some host adapters to optimize their performance in your system. Installing the ST3283A ---------------------- The table below shows the recommended translation geometry for the ST3283A. This geometry is printed on the drive top cover. If the drive offered by the CMOS do not support the translation geometry shown in the table below and your system does not support a "user-defined" drive type, select a drive type in your systemj CMOS with capacity less than or equal to 233.99 Megabytes, as shown under "Formatted CMOS Megabytes". Formatted MB Translation Geometry Formatted CMOS MB 245.36 CYL. 978 HEAD 14 SEC/TRACK 35 233.99 Installing the ST3283N ---------------------- The SCSI drive handles drive geometry and defect management inter- nally. In AT systems with SCSI drives, select a CMOS drive type of zero or the "no drive installed" option. Maintenance and repair ---------------------- Seagate drives do not require any preventive maintenance. The head/ disc assembly is sealed and does not contain any user-serviceable components. Tampering with the factory seal voids the warranty. Radio and television interference --------------------------------- This product complies with Class B limits for radio noise emissions from computer equipmentas set in the radio interference regulations of the Canadian Department of Communikations.