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Current Shareware 1994 January
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ST1400N.TXT
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1993-05-13
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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)
┌──────────────────────────────────┬─────────────────────────────────┐
│ United States +1 408 438-8771 │ United Kingdom +44 628 478011 │
├──────────────────────────────────┼─────────────────────────────────┤
│ Germany +49 89 140-9331 │ Singapore +65 227-2217 │
└──────────────────────────────────┴─────────────────────────────────┘
(C)opyright 1991
ST-1400N SCSI-2
╔═══════════╗
║ REAR VIEW ║
╚═══════════╝
50 pin I/O Cable Connection
╒════════════════════════1╕
J4│:::::::::::::::::::::::::│ /─────────\
═╧══P═W═A════════════════════│ 0 0 0 0 │══
┌──────1 ┌──────1 ┌──────1 └─5─G─G─12┘
└──────┘ └───┬──┘ └──────┘
└Terminating Resistors┘
╔════════════════╗
║ LEFT SIDE VIEW ║
╚════════════════╝
12345678
╒════════╕
FRONT J6│::::::::│ BACK
OF ══════════╧1═══════╧══════P═W═A══════════════════════════ OF
DRIVE ││││││││ DRIVE
Factory Use ┘││││││└ Terminator Power (see below)│
Motor Start ─┘││││└─ Terminator Power (see below)├──┐
Start Delay ──┘││└── Reserved │
Write Protect ───┘└─── Parity ┌─────────────────────┴──────────┐
│ Termination Power-source Table │
├────────────────────────────────┴────────┐
│ 7 8 7 8 7 8 │
│ ╓─╖ ╓─╖ ╓───╖ A Drive Supplies Own │
│ °║°║ ║°║° ╙°─°╜ B Drive Supplies Bus │
│ °╙°╜ ╙°╜° ° ° C Bus Supplies Drive │
│ A B C │
╘════════════P═W═A════════════════════════╛
╔═════════════════╗
║ RIGHT SIDE VIEW ║
╚═════════════════╝
╒══1╕
BACK J5│:::│ FRONT
OF ═════╧═══╧═══P═W═A═══════════════════════════════════════ OF
DRIVE │││ DRIVE
ID 4 ─┘│└─ ID 1 If these ID jumpers are used,
ID 2 then ID jumpers shown in front
view ARE NOT USED.
╔════════════╗
║ FRONT VIEW ║
╚════════════╝
If these ID jumper are used,
╒═════╕ then ID jumpers shown in right side
J7│:::::│ view ARE NOT USED.
══╧1════╧═══════P═W═A═════════════════════
│││││
ID 1 ┘│││└ Remote LED
ID 2 ─┘│└─ Spindle Synchronization
ID 4
ST - 1400N
UNFORMATTED CAPACITY (MB) ________________383
FORMATTED CAPACITY (xx SECTORS) (MB) _____331*
AVERAGE SECTORS PER TRACK ________________62
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________10,332
CYLINDERS ________________________________1476 (user)
HEADS ____________________________________7
DISCS ____________________________________4
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25
SPINDLE SPEED (RPM) ______________________4,412
AVERAGE LATENCY (mSEC) ___________________6.8
BUFFER ___________________________________64 Kbyte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2
BYTES PER TRACK __________________________28,830 avg.
SECTORS PER DRIVE ________________________640,584
TPI (TRACKS PER INCH) ____________________1,760
BPI (BITS PER INCH) ______________________
AVERAGE ACCESS (ms) ______________________14
SINGLE TRACK SEEK (ms) ___________________2.5
MAX FULL SEEK (ms) _______________________26
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.5
+12V TYPICAL (amps) __0.54
+5V TYPICAL (amps) ___0.53
TYPICAL (watts) ______9.1
MAXIMUM (watts) ______15
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
* 512 bytes per sector, one spare sector per track,
two spare cylinders per unit.
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. (4/12/91)