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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)
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? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
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? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
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(C)opyright 1991
ST-4376N (94171-376 or -344) Wren 4 FH SCSI
Connects CHASIS ground to ground lug ???????????????
Connects SIGNAL ground to ground lug ????????????? ?
Drive Select ID's ???????? ? ?
Motor Start Option enable ???? ? G G
Parity Check Option enable ?? ? ????? ?1?2?
P M 4 2 1 ?o?o? ?12?G?G?5??
o o o o o ?o?o? ? 0 0 0 0 ? Power
o o o o o ????? \?????????/
???????????????????????????????????????????????????????????????Servo?PWA?
???????????????????????????????????????????????????????????????Data?PWA??
1???????? ?:::SCSI Cable::::::::::::1 ? ??? 1?????????
Terminator DIP ????????????????????????????? ?o? o Terminator DIP
?o??o
???
Terminator power (+5v) from drive (vertical) ????
Terminator power from the Bus (lower horizontal)
ST-4376N
94171-376/M WREN 4 FH
UNFORMATTED CAPACITY (MB) ________________376
FORMATTED CAPACITY (xx SECTORS) (MB) _____330
AVERAGE SECTORS PER TRACK ________________45
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________13914
CYLINDERS ________________________________1549
HEADS ____________________________________9
DISCS ____________________________________5
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.125-1.875
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________32 Kbyte
Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1280
BPI (BITS PER INCH) ______________________19058
AVERAGE ACCESS (ms) ______________________17.5
SINGLE TRACK SEEK (ms) ___________________4
MAX FULL SEEK (ms) _______________________43
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __1.4
+5V START-UP (amps) __1.9
+5V TYPICAL (amps) ___1.5
TYPICAL (watts) ______27
MAXIMUM (watts) ______64
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
ZBR = Zone Bit Recording = Variable sectors per track
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)