SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커 � United States +1 408 438-8771 � United Kingdom +44 628 478011 � 쳐컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑 � Germany +49 89 140-9331 � Singapore +65 227-2217 � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 (C)opyright 1991 ST-2502N (94241-502) Wren 6 HH SCSI and SCSI-2 SCSI Cable Power 郞袴袴袴袴袴袴袴袴袴袴袴拷 /컴컴컴컴�\ 袴袴袴袴袴袴袴袴袴袴袴�:::::::::::::::::::::::1팠袴� 0 0 0 0 팠袴� o o o o o o o o o o 突袴袴袴袴袴袴袴袴袴袴袴槁 읕5횳횳�12� o o o o o o o o o훟커 旼컴컴1 旼컴컴1 旼컴컴1 R R R P M 4 2 1 � � � 읕컴컴� 읕컴컴� 읕컴컴� 컴쩡� � � 컴쩡� � � � Terminator SIPS � � � � � � � � � � � � � 읕 Terminator power +5v from the Bus (lower horizontal) � � � � � 읕컴 Terminator power +5v from Drive (vertical) � � � � 읕컴컴 Terminator power +5v to the Bus (vertical) � � � 읕컴컴컴컴 Drive Select ID's � � 읕컴컴컴컴컴컴 Motor Start option enable � 읕컴컴컴컴컴컴컴 Parity check enable 읕컴컴컴컴컴컴컴컴컴 Reserved Factory use ST-2502N 94241-502 WREN 6 HH UNFORMATTED CAPACITY (MB) ________________502 FORMATTED CAPACITY (xx SECTORS) (MB) _____435 AVERAGE SECTORS PER TRACK ________________69 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________12285 CYLINDERS ________________________________1755 HEADS ____________________________________7 DISCS ____________________________________4 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.875-2.75 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________64 Kbyte SCSI-1: Read Look-Ahead, Non-Adaptive, Sinle-Segmented Buffer SCSI-2: Read Look-Ahead, Adaptive, Multi-Segmented Cache INTERFACE ________________________________SCSI TPI (TRACKS PER INCH) ____________________1459 BPI (BITS PER INCH) ______________________31674 AVERAGE ACCESS (ms) ______________________16 SINGLE TRACK SEEK (ms) ___________________3 MAX FULL SEEK (ms) _______________________33 MTBF (power-on hours) ____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.0 +12V TYPICAL (amps) __1.0 +5V START-UP (amps) __0.75 +5V TYPICAL (amps) ___0.65 TYPICAL (watts) ______16 MAXIMUM (watts) ______58 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 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. (6/26/90)