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 |
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(C)opyright 1993
ST-31200W/WD/WC Fast Wide SCSI-2 (Hawk 1LP)
+===========+
# REAR VIEW # (ST-31200W/WD only)
+===========+
(TOP) Auxiliary
___________________ /-- -1\/=========\
=( ×××××××××××××××××1)=|::::::|| 0 0 0 0 #=
\------------|----/ \ -- /\-5-G-G-12/
68 pin I/O Cable/ ||||||
||||||
||||||
||||||
Auxiliary option header ||||||
pin-11 +5v ---------/|||||
pin-10 GND ----------/||||
SCSI ID = 8 -----------/|||
SCSI ID = 4 ------------|||
or pin-6 REFIND+ ------/||
SCSI ID = 2 -------------/|
SCSI ID = 1 --------------/
SCSI ID = 0 (none)
+===========+
# REAR VIEW # (ST-31200WC only)
+===========+
80 pin I/O and DC Power Wall/bracket Connection
| Female
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, Male 80-pin
2-557101-1 right angle to PCB
+=================+
# RIGHT SIDE VIEW # (Both ST-31200W and ST-31200WC)
+=================+
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 |
| #o#o o#o# #o-o# B Drive Supplies Own |
| #o#o o#o# o o C Bus Supplies Drive |
| A B C |
\---------Default------------------------------/
Note: The model ST-31200WC drive cannot furnish terminator power,
because no pins on the 80 pin I/O connector are devoted to terminator
power.
+============+
# FRONT VIEW # (Both ST-31200W and ST-31200WC)
+============+
TOP (HDA) J6 #=====1#
==P=W=A==========================#::::::#=
* BOTTOM \======/
| ||||||
LED -/ ||||||
||||||
||||||
Auxiliary option header ||||||
pin-11 +5v ---------/|||||
pin-10 GND ----------/||||
SCSI ID = 8 -------+---/|||
or pin-8 BUSY ----/ |||
SCSI ID = 4 -------+----/||
or pin-6 REFIND+ -/ ||
SCSI ID = 2 -------------/|
SCSI ID = 1 --------------/
SCSI ID = 0 (none)
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-31200W
Hawk 1LP
UNFORMATTED CAPACITY (MB) ________________1258.8
FORMATTED CAPACITY (xx SECTORS) (MB) _____1055.28
AVERAGE SECTORS PER TRACK ________________84
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS ___________________________________24,300
CYLINDERS ________________________________2,700 user
HEADS ______PHYSICAL______________________9
DISCS (3.5 in) ___________________________5
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 47.2
EXTERNAL TRANSFER RATE (mbyte/sec) _______20 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 WIDE
ASA
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)_______1.2/1.7
MAX FULL SEEK (ms) (read/write)___________19.4/20.4
MTBF (power-on hours) ____________________500,000
POWER REQUIREMENTS: +12V START-UP (amps) _1.9
+12V TYPICAL (amps) __0.37
+5V START-UP (amps) __0.65
+5V TYPICAL (amps) ___0.45
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 9 spare sector
per cylinder and 2 spare cylinders/unit.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (10/24/94)