SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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� United States +1 408 438-8771 � United Kingdom +44 628 478011 �
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� Germany +49 89 140-9331 � Singapore +65 227-2217 �
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(C)opyright 1991
ST-3600A AT Interface
PCB with 2x3 style jumper block J6 on right side near rear.
^^^
J5 Drive ID Select and � � J6 (located on side
Configuration Select Header� � near rear)
���������������������������� ���������������������
� o o o1
� +5v ---o o o
40-pin I/O Cable Connector � ��������
�������������������� o o o o o1 1 2 3
J1�::::::::::�::::::::1� /���������\ o o o o o Remote LED�� � ��Reserved
�����������������������ͳ 0 0 0 0 ������������ Connection� ��ĴJumper
(pin 20 missing for ��5�G�G�12� (see below)Ŀ �Position
keying purposes) DC Power ����������
�
��J5����������������������������Ŀ
� �Ŀ �Ŀ �Ŀ 1 �
� �o� o-C�o�E�o�G-o �
� �o�B-o �o� �o� o �
� �A� �D� �F� H �
� �������������������������� �
���Defaults shown in solid lines���
J5 Jumper Function Description (* indicates default)
������������������������������������������������������
A B (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)
OFF OFF Drive is the slave (Drive 1).
OFF ON Drive is the master (Drive 0) with slave (Drive 1) present.
ON* OFF Drive is the master (Drive 0).
C (C=horizontal, pins 5 & 7)
ON Slave (Drive 1) Present is connected to J1 pin 39. Jumpers
"D" or "E" cannot be installed if jumper "C" is installed.
OFF Slave Present is not connected to J1 pin 39.
D (D=vertical, pins 5 & 6)
ON* DASP- is connected to J1 pin 39. Jumpers "C", "D", "F", or
"G" cannot be installed if jumper "E" is installed.
OFF REFSIG is not connected to J1 pin 39.
E (E=horizontal, pins 3 & 5)
ON REFSIG is connected to J1 pin 39. Jumpers "C", "D", "F",
or "G" cannot be installed if jumper "E" is installed.
OFF REFSIG is not connected to J1 pin 39.
F (F=vertical, pins 3 & 4)
ON* No external reference for REFSIG. Jumpers "E", "G", or "H"
cannot be installed if jumper "F" is installed.
OFF This location provides a port for external connection of
the synchronized spindle reference signal (pin 3) and
ground (pin 4).
G (G=horizontal, pins 1 & 3)
ON REFSIG is connected to J1 pin 28. Jumpers "E" or "F" cannot
be installed if jumper "G" is installed.
OFF REFSIG is not connected to J1 pin 28.
H (H=vertical, pins 1 & 2)
ON Drive implements "CSEL" (Cable Select line in I/O connector)
feature. Implementation not defined yet. Jumpers A and B
not used if jumper H is on. (This jumper is mutually
exclusive with jumper "G").
OFF* Drive select is based on use of jumper A or B.
J6 Jumper Function Description (2x3 jumper block)
-------------------------------------------------
1 Remote LED cable connection. Pin 6 is connected to +5v through a
147 ohm resistor. Pin 5 is the LED driver.
2 Reserved jumper position.
3 Reserved jumper position.
ST-3600A
Rear View
PCB with 2x2 style jumper block J6 on right side near rear.
^^^
�� 40 pin AT Interface I/O connector
Mini Power �
Connector � side
��Ŀ � (TOP) DC power J6 1
G 5 ����������� �������� /�5�G�G�12\ o o (front)
�͵0 0 0�͵::::::::::�::::::::1�͵ 0 0 0 0 �� �� o o ���........
12 ����������ͳ��������; ����������� � �R� Spindle sync
(BOTTOM) �(pin 20 missing for � disable
keying purposes) ���L� Remote LED cable
connection
J5
(back of drive)
(A) 1 o-o ��� Single= (A) ON & (B) OFF, Slave= (A) OFF & (B) OFF
(B) 3 o-o ��� Master with Slave = (A) OFF & (B) ON
�(C) o-o ������ DASP- in on pin 39
����(D) o-o ��� J5 pins 7 & 8 �� No spindle synch reference
detail� �(E) o-o ������ Cable select on pin 28
below � (F) o-o ������ Cable select option enabled
� (G) o-o ������ Option #1 enabled
�
�
����������������������������������������������������������������Ŀ
� (C) o-o� ������ DASP- in on pin 39 �
� (H) H ��� J5 pins 6 & 8 �� SPSYNC on I/O J1 pin 39 �
� (D) o-o� ��� J5 pins 7 & 8 �� No spindle synch reference �
� (J) J ��� J5 pins 8 & 10 �� SPSYNC on I/O J1 pin 28 �
� (E) o-o� ������ Cable select on pin 28 �
������������������������������������������������������������������
J5 Jumper Funtion Description (* indicates default)
������������������������������������������������������
A B
OFF OFF Drive is the slave (Drive 1).
OFF ON Drive is the master (Drive 0) with slave (Drive 1) present.
ON* OFF Drive is the master (Drive 0).
C
ON* DASP- is brought into drive through I/O pin 39
OFF DASP- is not used and is not connected to drive. I/O cable
pin 39 may be used for spindle synch if jumper H is
installed.
D
ON* No spindle synch reference is used. See also J6 position
R, which duplicates the function of this jumper. Either J5
D or J6 R may be jumpered to signify no synch spindle
reference is used.
OFF Spindle synch reference signal cable may be plugged onto
this jumper, J6 R or spinle synch ref may be taken from I/O
cable pin 28 (if jumper J installed) or pin 39 (if jumper H
installed).
E
ON I/O connector J1 pin 28 is used for Cable Select function.
Jumper F must also be installed to implement cable select.
OFF J1 pin 28 not used for Cable Select function.
F
ON Cable select option enabled. Jumper E must also be
installed to enable cable select.
OFF Cable select option not enabled.
G
ON Optional feature #1 enabled
OFF Optional feature #1 not enabled
H
ON Spindle synch reference signal is on I/O connector J1 pin 39.
OFF Spindle synch reference signal is not on J1 pin 39.
J
ON Spindle synch reference signal is on I/O connector J1 pin 28.
OFF Spindle synch reference signal is not on J1 pin 28.
J6 Jumper Funtion Description (2x2 jumper block)
-------------------------------------------------
L Remote LED cable connection (Not a jumper position). Do not
install a jumper if remote LED cable is not plugged here.
R
ON No spindle synch reference is used. See also J5 posistion
D, which duplicates the function of this jumper position.
Either J5D or J6 R may be used to signify no spindle synch
reference is used.
OFF Spindle sync reference signal cable may be plugged into
this jumper position, J5 D or the spindle synch reference
may be taken from I/O cable pin 28 (if jumper J installed)
or pin 39 (if jumper H installed).
ST-3600A
UNFORMATTED CAPACITY (MB) ________________617
FORMATTED CAPACITY (xx SECTORS) (MB) _____528
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________13,104
CYLINDERS __PHYSICAL______________________1,872 (user)
HEADS ______PHYSICAL______________________7
DISCS (3.5 in) ___________________________4
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
TRANSFER RATE INTERNAL (mbits/sec)________19.6 to 36.0
DMA SUPPORT ______________________________EISA Type B
SPINDLE SPEED (RPM) ______________________4,535
AVERAGE LATENCY (mSEC) ___________________6.61
BUFFER ___________________________________256 KByte SeaCache
Adaptive cache
INTERFACE ________________________________AT BUS
SECTORS PER DRIVE ________________________
TPI (TRACKS PER INCH) ____________________2150
AVERAGE ACCESS (ms) (read/write)__________10.5/11.2
SINGLE TRACK SEEK (ms) ___________________2
MAX FULL SEEK (ms) _______________________23
MTBF (power-on hours) ____________________200,000
POWER REQUIREMENTS: +12V START-UP (amps) _1.5
+12V TYPICAL (amps) __0.4
+5V TYPICAL (amps) ___0.2
TYPICAL (watts) ______5
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________*
* MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO
SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
AVAILABLE. (see below)
Possible translation: 1024 cyl, 16 heads, 63 sectors = 528,482,304
Note: A "custom" or "user-definded" CMOS drivetype may ask for a
numerical value for the Write Precompensation cylinder and for the
Landing Zone cylinder. A basic rule-of-thumb for drive models that do
not require the old Write Precomp technique or a Landing Zone because
they are Auto-Parking is to add 1 to the cylinder value being used. As
an example: If cylinders equaled 820, then both Write Precomp and
Landing Zone would be entered as 821. Some BIOS will convert this to
65535 or -1, which are functionally equivalent to "none (not used)".
PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
Already low-level formatted at the factory.
Since a User-definable or Custom translation geometry may be used, it
is imperative that the values be written down and kept with your
permanent records for retrieval in the event of CMOS battery failure.
Seagate reserves the right to change, without notice, product
offerings or specifications. (01/21/93)
