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USA BESTSELLER Vol 1-95 (Hepp-Computer)(1995).iso
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e177
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st3620n.txt
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1994-08-09
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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 1993
ST-3620N SCSI-2 Fast (Hawk 1LP)
╔═══════════╗
║ REAR VIEW ║ (ST-3620N only)
╚═══════════╝
50 pin I/O Cable Connection
│
J1╒════════════════════════1╕ /─────────\ TOP (HDA)
═╡:::::::::::::::::::::::::╞═│ 0 0 0 0 │══
╘═════════════════════════╛ └─5─G─G─12┘ BOTTOM
╔═══════════╗
║ REAR VIEW ║ (ST-3620NC only)
╚═══════════╝
80 pin I/O and DC Power Wall/bracket 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
Mating NC connector: AMP US p/n: 2-557103-1 straight-in
2-557101-1 right angle to PCB
╔═════════════════╗
║ RIGHT SIDE VIEW ║ (Both ST-3620N and ST-3620NC)
╚═════════════════╝
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 │
├────────────────────────────────┴─────────────┐
│═════....═════....═════PWA edge═════ │
│ │
│ 1 2 1 2 1 2 │
│ ╓─╖ ╓─╖ A Drive Supplies Bus │
│ ║°║° °║°║ ╓°─°╖ B Drive Supplies Own │
│ ╙°╜° °╙°╜ ╙° °╜ C Bus Supplies Drive │
│ A B C │
└─────────Default──────────────────────────────┘
╔════════════════╗
║ LEFT SIDE VIEW ║ (ST-3620N 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-3620N and ST-3620NC)
╚════════════╝
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-3620N
Hawk 1LP
UNFORMATTED CAPACITY (MB) ________________651.8
FORMATTED CAPACITY (xx SECTORS) (MB) _____545.9
AVERAGE SECTORS PER TRACK ________________78 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________13,500
CYLINDERS __PHYSICAL______________________2,700 user
HEADS ______PHYSICAL______________________5
DISCS (3.5 in) ___________________________3
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec)________24.4 to 42.4
EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async
EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
SPINDLE SPEED (RPM) ______________________5411
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)__________9.3/10.5
Drive level without controller overhead
SINGLE TRACK SEEK (ms) (read/write)_______1.0/1.7
MAX FULL SEEK (ms) (read/write)___________19.4/22.9
MTBF (power-on hours) ____________________500,000
POWER REQUIREMENTS: +12V START-UP (amps) _1.5
+12V TYPICAL (amps) __0.5
+5V START-UP (amps) __
+5V TYPICAL (amps) ___0.2
TYPICAL (watts) ______7
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): 1.00/25.4
Width (inches/mm): 4.02/102.1
Depth (inches/mm): 5.77/146.6
Weight (lbs/kg): 1.5/0.68
Already low-level formatted at the factory with one spare sector
per track 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. (08/09/94)