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st4026.txt
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1993-06-14
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SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771 [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright 1990
ST-4026
/─4─3─2─1─\
│ O O O O │ Power
└─────────┘
┌Data Cable ┌Controller Cable 1 5 G G 12
═════════ ══ ════════════════════ ═══ ════════════
o o o o ┌─1
o o o o │ │
Drive Select->1 2 3 4 │ ├─ Resistor
│ │ │ │ │ Termination Pack
│ └┬┘ └─┘
│ │
│ └─Never Used (Drive Select 3 and 4)
└────If twisted cable, use Drive Select 2
ST - 4026
UNFORMATTED CAPACITY (MB) ________________25.6
FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________2,460
CYLINDERS ________________________________615
HEADS ____________________________________4
DISCS ____________________________________3
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________MFM
TRANSFER RATE (mbits/sec) ________________5.0
INTERFACE ________________________________ST412
TPI (TRACKS PER INCH) ____________________625
BPI (BITS PER INCH) ______________________9,617
AVERAGE ACCESS (ms) ______________________40
SINGLE TRACK SEEK (ms) ___________________8
MTBF (power-on hours) ____________________15,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.0
+12V TYPICAL (amps) __1.5
+5V TYPICAL (amps) ___1.5
TYPICAL (watts) ______25.5
MAXIMUM (watts) ______55
BUFFERED STEP PULSE RATE (micro sec) _____25-50
WRITE PRECOMP (cyl) ______________________N/A (616)
REDUCED WRITE CURRENT (cyl) ______________N/A (616)
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________2
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)