S T 1 5 1 SEAGATE NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 3.5"/HH Cylinders 977| | | Capacity form/unform 42/ 51 MB Heads 5| | | Seek time / track 24.0/ 8.0 ms Sector/track 17| | | Controller MFM / ST412 Precompensation 65535 Cache/Buffer KB Landing Zone Data transfer rate 0.625 MB/S int Bytes/Sector 512 0.625 MB/S ext Recording method MFM operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 10 50 | -40 60 Power: sleep W Humidity % 8 80 | 5 90 standby 8.0 W Altitude km -0.304 3.048| -3.040 9.144 idle W Shock g 2 | 50 seek 9.0 W Rotation RPM 3600 read/write W Acoustic dBA 40 spin-up W ECC Bit 32 MTBF h 150000 Warranty Month Lift/Lock/Park YES Certificates CSA,FCC,TUV,UL478,VDE ********************************************************************** L A Y O U T ********************************************************************** SEAGATE ST151 PRODUCT MANUAL 36130-003, REV.C Optional LED Connector +-------+-+-----------------------------------------------+ .. LED +-+ |XX | |XX J2 | |XX | |XX | JP7 |XX | 1+--+ | | | | |XX | | | |XX | +--+ |XX J1 | |XX | Resistor +-+ |XX | Termination | | |XX | Pack | | |XX | +-+ |XX | | +---------------------------------------------------1XXXXX+ J3 Power ********************************************************************** J U M P E R S ********************************************************************** SEAGATE ST151 PRODUCT MANUAL 36130-003, REV.C Jumper setting -------------- x = Factory setting JP7 Drive select Configuration Jumper block ---------------------------------------------- +-------------+------+------+------+------+ |Drive Select | 9-10 |11-12 |13-14 |15-16 | +-------------+------+------+------+------+ |Drive 4 |CLOSED|OPEN |OPEN |OPEN | |Drive 3 |OPEN |CLOSED|OPEN |OPEN | |Drive 2 |OPEN |OPEN |CLOSED|OPEN | |Drive 1 |OPEN |OPEN |OPEN |CLOSED| +-------------+------+------+------+------+ The Drive Select line enables the controller to select and adress the drive. Control cable interface options may use either a daisy- chain or radial configuration. JP7 Manufacturing test ----------------------- x 7- 8 OPEN Do not install a jumper on the Manufacturing Test jumper on the user configuration jumper block. This setting is only to be used at the factory during drive testing. If a jumper is installed at this position, the drive will ignore all control signals and seek continuously between Track 0 and the maximum data cylinder. JP7 Not used ------------- 5- 6 Not used JP7 Recovery Mode ----------------- x 3- 4 OPEN Recovery Mode is selectable option which is en- abled by shorting pins 3 and 4 at JP7. JP7 Radial/Daisy-Chain Mode ---------------------------- x 1- 2 OPEN Daisy-Chain-Configuration A Daisy-Chain configuration allows connection of a maximum of two drives on a common control cable. A separate data cable is required for each drive. The last drive in the chain (physically farthest from the controller) requires termination. All other drives should not be terminated. The maxi- mum permitted cable length from the controller to the last drive is 10ft (0.31m). 1- 2 CLOSE Radial Configuration To configure the drive radially, install a jumper on pins 1 and 2 of the user configuration jumper block. If you configure the drive radially, leave the resistor terminator packs installed on all drives. Each radially connected drive has its own control and data cable. Drives in this configu- ration always remain selected. J3 DC Power and pin connector assignments ------------------------------------------ +------------+ pin 1 +12 VDC | 1 2 3 4 | pin 2 +12 VDC Gnd +------------+ pin 3 + 5 VDC Gnd pin 4 + 5 VDC ********************************************************************** I N S T A L L ********************************************************************** SEAGATE ST151 PRODUCT MANUAL 36130-003, REV.C 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 mounted horizontally with the PC board down or on either side. Mounting vertically on either end is a prohibited orien- tation. The drive should not be tilted front or back, in any position, by more than 5*. For optimum performance, the drive should be formatted in the same position as it will be mounted in the host system. The mounting screws must not exceed inside the mounting feet more than 3.2 mm, measured from the outside surface of the foot. Shock and vibrations -------------------- All shock and vibration specifications assume that the drive is moun- ted in an approved orientation with the input levels at the drive mounting screws. Shipping zone ------------- Upon power-down, the read/write heads automatically move to the ship- ping zone. The shipping zone is an area inboard from the maximum data cylinder. When power is applied, the heads will recalibrate to Track 0. FCC Verification ---------------- WARNING: The drives are intended to be contained solely within a per- sonal computer or similar enclosure (not attached to an external de- vice). As such, a drive is considered to be a subassembly even when individually marketed to the customer. As a subassembly, no Federal Communications Commission authorization, verification or certifica- tion of the drive is required. Seagate Technology, Inc. has tested these devices in an enclosure as described above to ensure that the total assembly (enclosure, disk drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device. Operation with non-certified assem- blies is likely to result in interference to radio and television reception. Handling and Static-Discharge Precautions ----------------------------------------- After unpacking, and prior to system integration, the drive may be exposed to potential handling and ESD hazards. It is mandatory that you observe standard static-discharge precautions. A grounded wrist- strap is preferred. Handle the drive by the frame only and always rest the drive on a padded surface until it is mounted in the host system. Input Noise ----------- Maximum permitted input noise ripple: 100 mV (peak-to-peak) Maximum permitted input noise: 20 MHz. Ripple measured at the host system power supply across an equivalent 20 resistive load on the +12 V line and an equivalent 8 load on the +5 V line. DC Power specifications ----------------------- Power may be applied or removed in any sequence without loss of data or damage to the drive, except during a write operation. Typical current and power specifications assume nominal voltages applied, 25*C ambient temperature, sea level and spindle rotating. Voltage tolerance (incl. ripple): 5% Recording Method ---------------- The ST151 is designed to operate with the ST412 interface with MFM encoding at 5.0 Mbits/sec. transfer rate. Caution: Operation of an MFM-certified drive with an RLL controller is not approved by Seagate and may void your warranty. Precompensation --------------- The ST151 does not require precompensation Radial/Daisy-Chain Mode ------------------------ The ST151 can be configured in either Radial or Daisy-Chain mode. Radially-selected drives are allways selected. The Radial option is enabled by shorting pins 1-2 at JP7. The resistor termination pack must remain installed on any radially-selected drive. In a Daisy- Chain, the last drive on the chain must have the resistor pack installed. Write Fault ----------- Write fault is indicated by a latched signal on the interface. It can be cleared by deselecting the drive or with a power-off/on cycle. When the Radial configuration jumper (pins 1-2 at JP7) is used, the drive is continuously selected and requires a power on/off cycle to clear Write Fault. Auto Truncation --------------- If the controller issues an exessive number of step pulses that would place the read/write heads outside Track 0, or inside the maximum track, the drive enters auto-truncation mode. Error Codes ----------- The drive LED is enabled by the Drive Select line. If the drive is not selected, you can identify the error code using an oscilloscope. The signal is output on Port Pin 3 of the microcontroller chip. The LED flash is synchronized with a long pause (no light). The most significant bit (MSB) is flashed first. The least significant bit (LSB) is flashed last. A long flash indicates logical one. A short flash indicates logical zero. The 4-bit codes for error signals are listed below: Error Code | Description -----------+------------- 0000 | Spindle motor failed to spin-up 0001 | No index from servo 0010 | Could not calibrate for loop offsets 0011 | Cannot find Track 0 during recalibration 0100 | Spindle motor speed out of tolerance during start up 0101 | Drive could not settle 0111 | Voice-coil motor drifting while in position loop 1001 | Failure to unlatch 1010 | Voice-coil motor circuit nonfunctional 1100 | Illegal guardband interrupt, cannot recover 1110 | Spindle motor speed out of tolerance during idle loop ********************************************************************** F E A T U R E S ********************************************************************** SEAGATE ST151 PRODUCT MANUAL 36130-003, REV.C Media Defects ------------- A media defect is a read error when the data, which has been correctly written, cannot be recovered within 16 retries. A label is fixed to the drive listing the location of any media defects by cylinder, head and bytes from index. For MFM encoding, this is based on 1.6 sec./byte. There will be no more than forty-two (42) defects total per drive. Cylinders 0, 1, 2 and 3 are free of defects. Mean Time Between Failures (MTBF) --------------------------------- At nominal power, sea level and 25*C ambient temperature, 150.000 power-on hours. Mean Time To Repair ------------------- MTTR is the average time taken by a well-trined service mechanic to diagnose and repair a drive malfunction. The drive is designed for a MTTR of 30 Minutes. Access Time Definition and Timing --------------------------------- Access time is defined as the time from the leading edge of the first step pulse received to Seek Complete, including setting. All seek times are true statistical averages and are calculated with a step pulse of 10 sec., nominal power, sea level and 25*C ambient tempera- ture. Track-to-track access time is the average of all possible single- track seeks in both directions. Minimum step pulse wdth:1.5 sec. The ST151 will accept step pulse periods from 3 to 200 sec. However, access times have been optimized for a 3 to 25 sec. step pulse period. Access times will degrade with step pulse periods greater than 25 sec. | ST151 | ----------------------------------+--------+ Track-to-Track msec. typ. | 8 | msec. max. | 10 | Average msec. typ. | 24 | Average msec. max. | 25 | Full-Stroke msec. typ. | 40 | msec. max. | 42 | Latency msec. avg. | 8.33 | ----------------------------------+--------+ Bit Jitter ---------- Bit jitter reduction determines the relationship between the leading edge of read data and the center of the data window. The specified read error rates are based on the following bit jitter specifications: the data separator must provide at least -40dB of bit jitter reduction at 2F with an offset of less than 1.5 nsec. shift from the center of the data window. UL/CSA Listing -------------- The St151 is listed in accordance with UL 478 and CSA C22.2 (0-M1982), and meet all applicable sections if IEC 380 and VDE 0806/08.81, as tested by TUV-Rheinland, North America. ********************************************************************** G E N E R A L ********************************************************************** SEAGATE SUPPORT SERVICES Seagate Technology ------------------ Technical Support Services If you need assistance installing your drive, consult your dealer. Dealers are familiar with their unique system configurations and can help you with system conflicts and other technical issues. If you need additional assistance with your Seagate(r) drive or other Seagate products, use one of the Seagate technical support services listed below. SeaFONE at 1-800-SEAGATE (1-800-732-4283) Seagate's 800 number allows toll-free access to automated self-help services, providing answers to commonly asked questions, troubleshooting tips and specifications for disc drives and tape drives. This service is available 24 hours daily and requires a touch-tone phone. If you need to speak to a technical support engineer, dial this number and listen to the options for technical support. (International callers can also reach this automated self-help service by dialing 408-456-4496). Seagate Technology online services Using a modem, you can obtain troubleshooting tips, free utility programs, drive specifications and jumper settings for Seagate's entire product line. You can also download software for installing and analyzing your drive. SeaNET You can obtain technical information on Seagate drives, Seagate software and much more over the Internet from Seagate's World Wide Web home page (http://www.seagate.com) or Seagate's ftp server (ftp://ftp.seagate.com). You may also send E-mail with your questions to DiscSupport@ Seagate.com or TapeSupport@Seagate.com. SeaBOARD SeaBOARD is a computer bulletin board system (BBS) that contains information about Seagate's disc and tape drive products and is available 24 hours daily. Set your communications software to eight data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers are listed in the following table. BBS Location Modem number United States Disc: 408-434-1080; Tape: 408-456-4415 England 44-1628-478011 France 33 1-48 25 35 95 Germany 49-89-140-9331 Singapore 65-292-6973 Thailand 662-531-8111 Australia 61-2-9756-2359 Taiwan 886-2-719-6075 Seagate CompuServe forum Online technical support for Seagate products is available on CompuServe. To access our technical support forum, type go seagate. This forum provides information similar to that found on SeaBOARD. In addition, you can type questions or browse through previous questions and answers on the forum messages. Seagate Technology FAX services SeaFAX You can use a touch-tone telephone to access Seagate's automated FAX system to receive technical support information by return FAX. This service is available 24 hours daily. Location Telephone number United States 1-800-SEAGATE or 408-456-4496 England 44-1628-894084 Australia 61-2-9756-5170 Seagate technical support FAX You can FAX questions or comments to technical support specialists 24 hours daily. Responses are sent during business hours. Location FAX number United States 408-944-9120 England 44-1628-890660 France 33 1-46 04 42 50 Germany 49-89-1430-5100 Australia 61-2-9725-4052 Singapore 65-293-4722 Hong Kong 852-2368 7173 Taiwan 886-2-715-2923 Korea 82-2-556-7294/4251 Seagate technical support You can talk to a technical support specialist during business hours Monday through Friday for one-on-one technical help. Before calling, note your system configuration and drive model number (STxxxx). There are several technical support phone numbers available for various Seagate products. Location Telephone number United States Please dial 1-800-SEAGATE for the specific product telephone number. (6:00 A.M. to 11:15 A.M., 12:30 P.M. to 5:00 P.M., Pacific time, M-F) England 44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to 5:00 P.M., M-F) France 33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00 P.M. to 5:00 P.M., M-F) Germany Disc: 49-89-140-9332; (9:30 A.M. to 12:30 P.M., 2:00 P.M. to 4:00 P.M., M-F) Tape: 49-89-140-9333 Australia 61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M-F) Singapore 65-290-3998 (9:00 A.M. to 12:00 P.M., 2:00 P.M. to 5:00 P.M., M-F) Hong Kong 852-2368 9918 Taiwan 886-2-514-2237 Korea 82-2-556-8241 SeaTDD 408-944-9121 Using a telecommunications device for the deaf (TDD), you can send questions or comments 24 hours daily and exchange messages with a technical support specialist between 6:00 A.M. to 11:15 A.M. and 12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday. Customer Service Centers Seagate direct OEM, Distribution, System Integrator and Retail customers should contact your Seagate Service Representative for warranty information. Other customers contact your place of purchase. Seagate offers comprehensive customer support for all Seagate drives. Seagate customer service centers are the only facilities authorized to service Seagate drives. These services are available worldwide. Location Telephone number FAX number United States 1-800-468-3472; 405-949-6740 Other Americas (Canada & Brazil) 405-949-6706; 405-949-6738 Mexico 525-546-6965; 525-546-4888 Europe, Middle East & Africa 31-2065-43300; 31-2065-34320 Asia Pacific & Australia 65-485-3595; 65-485-4980 Japan 81-3-5462-2904; 81-3-3462-2979 Seagate, Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD, SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries. All other trademarks or registered trademarks are the property of their respective owners.