SEAGATE TECHNOLOGY, INC. 1-800-SEAGATE http://www.seagate.com (C)opyright 1991 ST-2502N (94241-502) Wren 6 HH SCSI and SCSI-2 SCSI Cable Power ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͸ /ÄÄÄÄÄÄÄÄÄ\ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵:::::::::::::::::::::::1ÆÍÍ͵ 0 0 0 0 ÆÍÍÍÍ o o o o o o o o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ; ÀÄ5ÄGÄGÄ12Ù o o o o o o o o oÄoÄ¿ ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 R R R P M 4 2 1 ³ ³ ³ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÄÄÂÄÄ ³ ³ ÄÄÂÄÄ ³ ³ ³ Terminator SIPS ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ÀÄ Terminator power +5v from the Bus (lower horizontal) ³ ³ ³ ³ ³ ÀÄÄÄ Terminator power +5v from Drive (vertical) ³ ³ ³ ³ ÀÄÄÄÄÄ Terminator power +5v to the Bus (vertical) ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Drive Select ID's ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Motor Start option enable ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Parity check enable ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 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, Single-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)