SEAGATE TECHNOLOGY, INC. 1-800-SEAGATE http://www.seagate.com (C)opyright 1991 ST-4350N (94171-350) Wren 4 FH SCSI Connects CHASIS ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Connects SIGNAL ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ Drive Select ID's ÄÄÄÄÄÄÄ¿ ³ ³ Motor Start Option enable ÄÄÄ¿ ³ G G Parity Check Option enable Ä¿ ³ ÚÄÅÄ¿ Ú1Â2¿ P M 4 2 1 ³o³o³ Ú12ÄGÄGÄ5Ä¿ o o o o o ³o³o³ ³ 0 0 0 0 ³ Power o o o o o ÀÄÁÄÙ \ÄÄÄÄÄÄÄÄÄ/ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍServoÍPWAÍ ÍÑÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍDataÍPWAÍÍ 1ÄÄÄÄÄÄÄÙ ³:::SCSI Cable::::::::::::1 ³ ÚÄ¿ 1ÄÄÄÄÄÄÄÄÙ Terminator DIP ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ; ³o³ o Terminator DIP ³oÅÄo ÀÂÙ Terminator power (+5v) from drive (vertical) ÄÄÄÙ Terminator power from the Bus (lower horizontal) ST-4350N 94171-350/M WREN 4 FH UNFORMATTED CAPACITY (MB) ________________350 FORMATTED CAPACITY (xx SECTORS) (MB) _____300 AVERAGE SECTORS PER TRACK ________________46 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________12708 CYLINDERS ________________________________1412 HEADS ____________________________________9 DISCS ____________________________________5 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.25-1.875 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) ______________________19058 AVERAGE ACCESS (ms) ______________________16.5 SINGLE TRACK SEEK (ms) ___________________4 MAX FULL SEEK (ms) _______________________43 MTBF (power-on hours) ____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __1.5 +5V START-UP (amps) __2.0 +5V TYPICAL (amps) ___1.8 TYPICAL (watts) ______27 MAXIMUM (watts) ______64 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)