SEAGATE TECHNOLOGY, INC. Technical Support Bulletin Board 408/438-8771 [300-9600 HST, MNP 3/5, N-8-1] (C)opyright 1990 Wren 2 HH ST-506 ST-279R (94205-77) Drive Select ÚÄÄÄÄÄÄÄÄÄ¿ o o o o o o o 1 Terminator ³ O O O O ³ Power o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ¿ \ÄÄÄÄÄÄÄÄÄ\ 1 2 3 4 R r reserved ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ 12 G G 5 ÍÍÍÍÍÍÍÍÍÍ ÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ³ ³ ÀÄController Cable ³ ÀÄÄRadial ÀÄÄÄÄÄÄÄÄIf twisted cable, use Drive Select 2 ST-279R 94205-77 WREN 2 HH UNFORMATTED CAPACITY (MB) ________________77 FORMATTED CAPACITY (26 SECTORS) (MB) _____65 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________4,945 CYLINDERS ________________________________989 HEADS ____________________________________5 DISCS ____________________________________3 MEDIA TYPE _______________________________OXIDE RECORDING METHOD _________________________RLL TRANSFER RATE (mbits/sec) ________________7.5 INTERFACE ________________________________ST506 TPI (TRACKS PER INCH) ____________________960 BPI (BITS PER INCH) ______________________14,302 AVERAGE ACCESS (ms) ______________________28 SINGLE TRACK SEEK (ms) ___________________5 MTBF (power-on hours) ____________________40,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __1.5 +5V START-UP (amps) __1.0 +5V TYPICAL (amps) ___0.4 TYPICAL (watts) ______20 MAXIMUM (watts) ______?? BUFFERED STEP PULSE RATE (micro sec) _____8-200 WRITE PRECOMP (cyl) ______________________128 REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________* * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)