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Suzy B Software 2
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Suzy B Software CD-ROM 2 (1994).iso
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st12400n.txt
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1995-04-25
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7KB
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157 lines
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 1993
ST-12400N SCSI-2 Fast
╔═══════════╗
║ REAR VIEW ║ (ST-12400N only)
╚═══════════╝
50 pin I/O Cable Connection
│
J1╒════════════════════════1╕ /─────────\ TOP (HDA)
═╡:::::::::::::::::::::::::╞═│ 0 0 0 0 │══
╘═════════════════════════╛ └─5─G─G─12┘ BOTTOM
╔═══════════╗
║ REAR VIEW ║ (ST-12400NC only)
╚═══════════╝
80 pin I/O and DC Power Cable Connection
│
J1 /────│───────────────\ TOP (HDA)
══════════/ ╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫╫ \══════════
(\─1──────────────────40/) BOTTOM
Notes on 80 pin I/O connector:
pins 1 - 4 = +12v 41 - 44 = 12v GND
34 - 36 = +5v 74 - 76 = 5v GND
37 = SYNC 77 = LEDC
38 = MTRON 78 = DLYDST
39 = SCSIA0 79 = SCSIA1
40 = SCSIA2 80 = SCSIA3
╔═════════════════╗
║ RIGHT SIDE VIEW ║ (Both ST-12400N and ST-12400NC)
╚═════════════════╝
BACK ╒═╕ J2 12345678 TOP (HDA) FRONT
OF J1╞══════════════════════P═W═A═══════════════════════ OF
DRIVE ╘═╛ :::::::: BOTTOM DRIVE
││││││││
│Terminator Power ┘││││││└ Reserved
┌┤Terminator Power ─┘││││└─ Start Delay (12 secs * ID)
│ Enable T-Res ──┘││└── Motor Start
│ Parity Enable ───┘└─── Write Protect
│
│
│ ┌────────────────────────────────┐
└─┤ Termination Power-source Table │
├────────────────────────────────┴─────────────┐
│ 1 2 1 2 1 2 │
│ ╓─╖ ╓─╖ A Drive Supplies Bus │
│ ║°║° °║°║ ╓°─°╖ B Drive Supplies Own │
│ ╙°╜° °╙°╜ ╙° °╜ C Bus Supplies Drive │
│ A B C │
│═════....═════....═════PWA edge═════ │
│ │
└──────Default─────────────────────────────────┘
╔════════════════╗
║ LEFT SIDE VIEW ║ (ST-12400N only)
╚════════════════╝ If these ID jumpers are used,
then ID jumpers shown in front
view ARE NOT USED.
FRONT TOP (HDA) J5 ╒══1╕ ╒═╕BACK
OF ════════P═W═A═══════════════════════════════╡:::╞═╡J1 OF
DRIVE BOTTOM ╘═══╛ ╘═╛DRIVE
│││
ID 1 ─┘│└─ ID 4
ID 2
╔════════════╗
║ FRONT VIEW ║ (Both ST-12400N and ST-12400NC)
╚════════════╝
TOP (HDA) J6 ╒═════1╕
══P═W═A══════════════════════════╡::::::╞═
* BOTTOM ╘══════╛
│ 123456
LED ─┘ ││││││
ID 4 ┘││││└ Reserved
ID 2 ─┘││└─ Remote LED (pin-3 +5v)
ID 1 ──┘└── Spindle Synchronization
(pin-6 REF SIG+)
If these ID jumper are used, then
ID jumpers shown in left side view J5
or 80 pin I/O cable ARE NOT USED.
ST-12400N
UNFORMATTED CAPACITY (MB) ________________2537
FORMATTED CAPACITY (xx SECTORS) (MB) _____2148
AVERAGE SECTORS PER TRACK ________________83 rounded down
ACTUATOR TYPE ____________________________STRAIGHT ARM
TRACKS ___________________________________49,799
CYLINDERS ________________________________2,621 user
HEADS ______PHYSICAL______________________19
DISCS (3.5 in) ___________________________10
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
TRANSFER RATE INTERNAL (mbits/sec)________26.8 to 45.6
SPINDLE SPEED (RPM) ______________________5,411
AVERAGE LATENCY (mSEC) ___________________5.54
BUFFER ___________________________________256/1024 KByte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 FAST
SECTORS PER DRIVE ________________________
TPI (TRACKS PER INCH) ____________________3000
AVERAGE ACCESS (ms) (read/write)__________9.0/10.5
Drive level without controller overhead
SINGLE TRACK SEEK (ms) ___________________1
MAX FULL SEEK (ms) _______________________19
MTBF (power-on hours) ____________________500,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.54
+5V START-UP (amps) __0.8
+5V TYPICAL (amps) ___0.43
TYPICAL (watts) ______9
MAXIMUM (watts) ______
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Physical:
Height (inches/mm): 1.63/41.4
Width (inches/mm): 4.00/101.6
Depth (inches/mm): 5.75/146.1
Weight (lbs/kg): 2.5/0.99
Already low-level formatted at the factory with twelve spare sectors
per cylinder and two spare cylinders/unit.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (08/20/93)