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� LEFT SIDE VIEW �
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12345678
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FRONT J6�::::::::� BACK
OF �����������1��������������P�W�A�������������������������� OF
DRIVE �������� DRIVE
Factory Use ٳ������ Terminator Power (see below)�
Motor Start �ٳ����� Terminator Power (see below)��Ŀ
Start Delay ��ٳ���� Reserved �
Write Protect ������� Parity �������������������������������Ŀ
� Termination Power-source Table �
����������������������������������������Ŀ
� 7 8 7 8 7 8 �
� �ķ �ķ ���ķ A Drive Supplies Own �
� ���� ���� ��� B Drive Supplies Bus �
� ��� ��� � � C Bus Supplies Drive �
� A B C �
�������������P�W�A�����������������������;
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� RIGHT SIDE VIEW �
�����������������ͼ
���1�
BACK J5�:::� FRONT
OF �������������P�W�A��������������������������������������� OF
DRIVE ��� DRIVE
ID 4 �ٳ�� ID 1 If these ID jumpers are used,
ID 2 then ID jumpers shown in front
view ARE NOT USED.
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� FRONT VIEW �
������������ͼ
If these ID jumper are used,
����� then ID jumpers shown in right side
J7�:::::� view ARE NOT USED.
���1������������P�W�A���������������������
�����
ID 1 ٳ��� Remote LED
ID 2 �ٳ�� Spindle Synchronization
ID 4
ST - 1400N
UNFORMATTED CAPACITY (MB) ________________383
FORMATTED CAPACITY (xx SECTORS) (MB) _____331*
AVERAGE SECTORS PER TRACK ________________62
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________10,332
CYLINDERS ________________________________1476 (user)
HEADS ____________________________________7
DISCS ____________________________________4
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25
SPINDLE SPEED (RPM) ______________________4,412
AVERAGE LATENCY (mSEC) ___________________6.8
BUFFER ___________________________________64 Kbyte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2
BYTES PER TRACK __________________________28,830 avg.
SECTORS PER DRIVE ________________________640,584
TPI (TRACKS PER INCH) ____________________1,760
BPI (BITS PER INCH) ______________________
AVERAGE ACCESS (ms) ______________________14
SINGLE TRACK SEEK (ms) ___________________2.5
MAX FULL SEEK (ms) _______________________26
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.5
+12V TYPICAL (amps) __0.54
+5V TYPICAL (amps) ___0.53
TYPICAL (watts) ______9.1
MAXIMUM (watts) ______15
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
* 512 bytes per sector, one spare sector per track,
two spare cylinders per unit.
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (4/12/91)
