Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin
2-557101-1 right angle to PCB
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� RIGHT SIDE VIEW � (Both ST-12400W and ST-12400WC)
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BACK � J2 12345678 TOP (HDA) FRONT
OF J1�����������������������P�W�A����������������������� OF
DRIVE �; :::::::: BOTTOM DRIVE
��������
�Terminator Power ٳ������ Reserved
ڴTerminator Power �ٳ����� Start Delay (12 secs * ID)
� Enable T-Res ��ٳ���� Motor Start
� Parity Enable ������� Write Protect
�
�
� ��ST-12400W only ���������������Ŀ
�Ĵ Termination Power-source Table �
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������....�����....�����PWA edge����� �
� �
� 1 2 1 2 1 2 �
� �ķ �ķ A Drive Supplies Bus �
� ���� ���� ��� B Drive Supplies Own �
� ��� ��� � �� C Bus Supplies Drive �
� A B C �
����������Default�������������������������������
Note: The model ST-12400WC drive cannot furnish terminator power,
because no pins on the 80 pin I/O connector are devoted to terminator
power.
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� FRONT VIEW � (ST-12400W only)
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TOP (HDA) J6 ������1�
��P�W�A�������������������������͵::::::��
* BOTTOM ������2�
� ������
LED �� ������
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Auxiliary option header ������ SCSI ID = 0 (none)
pin-11 +5v ���������ٳ������� SCSI ID = 1
pin-10 GND ����������ٳ������ SCSI ID = 2
SCSI ID = 8 ����������������� SCSI ID = 4
or pin-8 BUSY ����� ���� or pin-6 REFIND+
If these ID jumper are used, then
ID jumpers shown in rear view Aux-J1
or 80 pin I/O cable ARE NOT USED.
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� FRONT VIEW � (ST-12400WC only)
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TOP (HDA) J6 ������1�
��P�W�A�������������������������͵::::::��
* BOTTOM ������2�
� ������
LED �� ������
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SCSI ID = 8 ���������ٳ������� Remote LED (pin-2 cathode)
SCSI ID = 4 ����������ٳ������ Sync Spindle
SCSI ID = 2 �����������ٳ SCSI ID = 0 (none)
������ SCSI ID = 1
ST-12400W
Hawk 2
UNFORMATTED CAPACITY (MB) ________________2537
FORMATTED CAPACITY (xx SECTORS) (MB) _____2148
AVERAGE SECTORS PER TRACK ________________84 rounded down
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
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)
INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6
EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync
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)__________9.3/10.8
Drive level without controller overhead
SINGLE TRACK SEEK (ms) ___________________1
MAX FULL SEEK (ms) _______________________21
MTBF (power-on hours) ____________________500,000
SHOCK (G's):
operating (Read/Write) __________10
nonoperating ____________________60
ACOUSTICS (typ/max dBA) __________________
POWER REQUIREMENTS: +12V START-UP (amps) _2.4
+12V TYPICAL (amps) __0.57
+5V START-UP (amps) __0.8
+5V TYPICAL (amps) ___0.42
TYPICAL (watts) ______8.9
MAXIMUM (watts) ______10.8
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE