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-4702N (94181-702) Wren 5 SCSI
Power
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�����P�W�A�����͵:SCSI:Cable:::::::::::::::::1�͵ 0 0 0 0 ���
�Ŀ �����������������������������; ��5�G�G�12�
�o�x o o o o o(o) *�������1 *�������1 *�������1
�o�o o o o o o(o) ��������� ��������� ���������
��� 4 2 1 Terminator SIPS (see note below *)
� ����� � � �
� � � � ��Reserved (some PWA's do not have these pins)
� � � ����Parity check enable
� � ������Motor Start option enable
� ����������Drive ID's, ID 0 (none) if only SCSI device
����������������Terminator power from Drive (vertical)
Terminator power from Bus (lower horizontal)
* Note: If you have #77701215k silk-screened near the 50-pin SCSI cable
connector, the pin-1 for the 3 terminating resistors is away from
the DC power connector.
ST-4702N
94181-702/M WREN 5 FH
UNFORMATTED CAPACITY (MB) ________________702
FORMATTED CAPACITY (xx SECTORS) (MB) _____601
AVERAGE SECTORS PER TRACK ________________50
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________23190
CYLINDERS ________________________________1546
HEADS ____________________________________15
DISCS ____________________________________8
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.5-2
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________32 Kbyte
Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1280
BPI (BITS PER INCH) ______________________26000
AVERAGE ACCESS (ms) ______________________16.5
SINGLE TRACK SEEK (ms) ___________________3
MAX FULL SEEK (ms) _______________________39
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __1.6
+5V START-UP (amps) __1.0
+5V TYPICAL (amps) ___0.7
TYPICAL (watts) ______21
MAXIMUM (watts) ______59
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
ZBR = Zone Bit Recording = Variable sectors per track
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
