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ST2502N.TXT
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1992-05-22
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SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
⁄ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¬ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ United States +1 408 438-8771 ≥ United Kingdom +44 628 478011 ≥
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¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
(C)opyright 1991
ST-2502N (94241-502) Wren 6 HH SCSI and SCSI-2
SCSI Cable Power
’ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ∏ /ƒƒƒƒƒƒƒƒƒ\
ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕµ:::::::::::::::::::::::1ΔÕÕÕµ 0 0 0 0 ΔÕÕÕÕ
o o o o o o o o o o ‘ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕæ ¿ƒ5ƒGƒGƒ12Ÿ
o o o o o o o o oƒoƒø ⁄ƒƒƒƒƒ1 ⁄ƒƒƒƒƒ1 ⁄ƒƒƒƒƒ1
R R R P M 4 2 1 ≥ ≥ ≥ ¿ƒƒƒƒƒŸ ¿ƒƒƒƒƒŸ ¿ƒƒƒƒƒŸ
ƒƒ¬ƒƒ ≥ ≥ ƒƒ¬ƒƒ ≥ ≥ ≥ Terminator SIPS
≥ ≥ ≥ ≥ ≥ ≥ ≥
≥ ≥ ≥ ≥ ≥ ≥ ¿ƒ Terminator power +5v from the Bus (lower horizontal)
≥ ≥ ≥ ≥ ≥ ¿ƒƒƒ Terminator power +5v from Drive (vertical)
≥ ≥ ≥ ≥ ¿ƒƒƒƒƒ Terminator power +5v to the Bus (vertical)
≥ ≥ ≥ ¿ƒƒƒƒƒƒƒƒƒ Drive Select ID's
≥ ≥ ¿ƒƒƒƒƒƒƒƒƒƒƒƒƒ Motor Start option enable
≥ ¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ Parity check enable
¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ Reserved Factory use
ST-2502N
94241-502 WREN 6 HH
UNFORMATTED CAPACITY (MB) ________________502
FORMATTED CAPACITY (xx SECTORS) (MB) _____435
AVERAGE SECTORS PER TRACK ________________69
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________12285
CYLINDERS ________________________________1755
HEADS ____________________________________7
DISCS ____________________________________4
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.875-2.75
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________64 Kbyte
SCSI-1: Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
SCSI-2: Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1459
BPI (BITS PER INCH) ______________________31674
AVERAGE ACCESS (ms) ______________________16
SINGLE TRACK SEEK (ms) ___________________3
MAX FULL SEEK (ms) _______________________33
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.0
+12V TYPICAL (amps) __1.0
+5V START-UP (amps) __0.75
+5V TYPICAL (amps) ___0.65
TYPICAL (watts) ______16
MAXIMUM (watts) ______58
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)