SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) /----------------------------------+---------------------------------\ | United States +1 408 438-8771 | United Kingdom +44 628 478011 | +----------------------------------+---------------------------------| | Germany +49 89 140-9331 | Singapore +65 227-2217 | \----------------------------------+---------------------------------/ (C)opyright 1991 ST-124 ST412 MFM /---\ | O |12 | O |G | O |G | O |5 /Data Cable /Controller Cable 1 \---/ ========= == ==================== === ============ o o o o o o /------------\ o o o o o o \--+---------/ | | 4 3 2 1 \ Resistor Termination Pack located | | ---+--- behind options header (fixed) | | | | | \---- Drive Selects | \--------- Factory Test \----------- Radial ST - 124 UNFORMATTED CAPACITY (MB) ________________25.6 FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4 ACTUATOR TYPE ____________________________STEPPER TRACKS ___________________________________2,460 CYLINDERS ________________________________615 HEADS ____________________________________4 DISCS ____________________________________2 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________MFM TRANSFER RATE (mbits/sec) ________________5.0 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.3 INTERFACE ________________________________ST412 SECTORS PER DRIVE ________________________41,820 TPI (TRACKS PER INCH) ____________________824 BPI (BITS PER INCH) ______________________14,953 AVERAGE ACCESS (ms) ______________________40 SINGLE TRACK SEEK (ms) ___________________12 MAX FULL SEEK (ms) _______________________95 MTBF (power-on hours) ____________________150,000 POWER REQUIREMENTS: +12V START-UP (amps) _2.4 +12V TYPICAL (amps) __0.35 +5V TYPICAL (amps) ___0.8 TYPICAL (watts) ______8 MAXIMUM (watts) ______33 BUFFERED STEP PULSE RATE (micro sec) _____3-200 WRITE PRECOMP (cyl) ______________________N/A (616) REDUCED WRITE CURRENT (cyl) ______________N/A (616) LANDING ZONE (cyl)________________________670 IBM AT DRIVE TYPE ________________________6 Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)