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SEAGATE TECHNOLOGY, INC.
1-800-SEAGATE
http://www.seagate.com
(C)opyright 1991
ST-1150R (94355-150) Swift ST412 RLL
ÚÄÄÄ\
³ O ³ 5
³ O ³ G
³ O ³ G ÚÄÄÄ Located on rear
³ O ³ 12 ³ side of drive
ÀÄÄÄ/ Ú Controller Cable ³
ÍÍÍÍÍÍÍÍ ÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ ÚÄÄÄÄÄÁÄÄÄÄÄ¿
ÀData Cable ÚÄÄÄÄÄÄÄÄÄÄ¿ 1 o o o o o o
1ÄÄÄÄÄÄÄÄÄÄÙ o o o o o o (front)
Terminator 1 2 3 4 R Ext
ÄÄÄÂÄÄÄ ³ ³
³ ³ ³
³ ³ ³
³ ³ ³
³ ³ ³
Drive Selects ÄÄÄÄÄÄÙ ³ ³
Radial Select ÄÄÄÄÄÄÄÄÄÄÄÄÙ ³
External spindle clock ÄÄÄÄÙ
ST-1150R
94355-150 Swift
UNFORMATTED CAPACITY (MB) ________________150
FORMATTED CAPACITY (26 SECTORS) (MB) _____128
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________9,648
CYLINDERS ________________________________1,072
HEADS ____________________________________9
DISCS ____________________________________5
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbits/sec) ________________7.5
SPINDLE SPEED (RPM) ______________________3,600
INTERFACE ________________________________ST412
TPI (TRACKS PER INCH) ____________________1,350
BPI (BITS PER INCH) ______________________21,030
AVERAGE ACCESS (ms) ______________________15
SINGLE TRACK SEEK (ms) ___________________4
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.5
+12V TYPICAL (amps) __0.7
+5V START-UP (amps) __0.75
+5V TYPICAL (amps) ___0.4
TYPICAL (watts) ______10
MAXIMUM (watts) ______12
BUFFERED STEP PULSE RATE (micro sec) _____6-200
WRITE PRECOMP (cyl) ______________________300
REDUCED WRITE CURRENT (cyl) ______________N/A (1073)
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________*
* MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP
HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.
Swift Remote LED Option
Front View of Drive Without the Plastic Bezel
ÚÄÄÄÂÄÄÄ¿
³ A ³ B ³ B = Anode
ÃÄÄÄÅÄÄÄ´ D = Cathode
³ C ³ D ³
...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...
ø Default jumper at C-D for LED mounted on drive PWA
ø To use remote LED, remove jumper and extend B (Anode)
and D (Cathode).
ø Swift LED kit 75912397 allows connection to a remote LED
ø Swift LED kit 95913369 has an LED for attachment to the
system front bezel or a 5.25-inch frame kit
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
A copy of this specification file may be obtained
by FTP at
ftp://ftp.seagate.com/techsuppt/rll/st1150r.txt.
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