SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) ��������������������������������������������������������������������Ŀ � United States +1 408 438-8771 � United Kingdom +44 628 478011 � ��������������������������������������������������������������������Ĵ � Germany +49 89 140-9331 � Singapore +65 227-2217 � ���������������������������������������������������������������������� (C)opyright 1991 ST-1239NS (94351-230S) Swift SCSI ����\ � 0 � 5 � 0 � G � 0 � G � 0 � 12 .................... o o o o o o ����/ 1................... o o o o o o �������������������������������������������� 1������� 1������� 1������� 1 2 4 � � � Terminator Resistors ����� � � � � � � � Terminator Power Select Drive ID, binary - use ����� � � � Header located on the side ID 0 (no jumpers) for � � � � �������������������������� single drive install � � � � (Back) A B (Front of drive) Enable Parity Checking ��������� � � C D Enable Motor Start Option ����������� � �������������P�W�A Synchronized Spindle ������������� � � ������������������������������������������� ��� A-B Drive from Power Connector (factory default) A-C Drive from SCSI Bus A-C&B-D Drive from Power Connector and Provide to SCSI Bus B-D Only provide to SCSI Bus Swift with Shrouded SCSI Connector ����\ � 0 � 5 �� If the SCSI connector has a plastic shroud, � 0 � G � note pin-1 on cable and T-res. � 0 � G � � 0 � 12 ��������������������ͻ o o o o o o ����/ �:::::::::::::::::::1� o o o o o o �������������������������������������������� �������1 �������1 �������1 1 2 4 � � � Terminator Resistors ����� � � � � � � � Terminator Power Select Drive ID, binary - use ����� � � � Header located on the side ID 0 (no jumpers) for � � � � �������������������������� single drive install � � � � (Back) A B (Front of drive) Enable Parity Checking ��������� � � C D Enable Motor Start Option ����������� � �������������P�W�A Synchronized Spindle ������������� � � ������������������������������������������� ��� A-B Drive from Power Connector (factory default) A-C Drive from SCSI Bus A-C&B-D Drive from Power Connector and Provide to SCSI Bus B-D Only provide to SCSI Bus ST-1239NS 94351-230S Swift UNFORMATTED CAPACITY (MB) ________________239 FORMATTED CAPACITY (36 SECTORS/1 SPARED)__204.2 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________11,412 CYLINDERS ________________________________1,268 HEADS ____________________________________9 DISCS ____________________________________5 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.25 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________32 or 64 Kbyte Read Look-Ahead, Non-Adaptive, Single-Segmented INTERFACE ________________________________SCSI SECTORS PER DRIVE ________________________398,790 TPI (TRACKS PER INCH) ____________________1,543 BPI (BITS PER INCH) ______________________30,000 max AVERAGE ACCESS (ms) ______________________15 SINGLE TRACK SEEK (ms) ___________________4 MAX FULL SEEK (ms) _______________________35 MTBF (power-on hours) ____________________150,000 POWER REQUIREMENTS: +12V START-UP (amps) _2.5 +12V TYPICAL (amps) __0.7 +5V START-UP (amps) __0.75 +5V TYPICAL (amps) ___0.4 TYPICAL (watts) ______11 MAXIMUM (watts) ______34 BUFFERED STEP PULSE RATE (micro sec) _____6-200 WRITE PRECOMP (cyl) ______________________N/A (1269) REDUCED WRITE CURRENT (cyl) ______________N/A (1269) LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________0 or NONE Already low-level formatted at the factory. Swift Remote LED Option Front View of Drive Without the Plastic Bezel �������Ŀ � A � B � B = Anode �������Ĵ D = Cathode � C � D � ...�������������������������������P�W�A���... � Default jumper at C-D for LED mounted on drive PWA � To use remote LED, remove jumper and extend B (Anode) and D (Cathode). � Swift LED kit 75912397 allows connection to a remote LED � Swift LED kit 95913369 has an LED for attachment to the system front bezel or a 5.25-inch frame kit Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)