SEAGATE TECHNOLOGY, INC. Technical Support Bulletin Board 408/438-8771 [300-9600 HST, MNP 3/5, N-8-1] (C)opyright 1990 Wren 5 FH ESDI ST-4442E (94186-442) ÚData Cable ÚController Cable /Ä5ÄGÄGÄ12\ ÍÍÍÍÍÍÍÍ ÍÍÍ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ Í³ O O O O ÆÍÍ o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ o o o o o ÀTerminatorÄÙ o o o o o o o 1 2 3 4 5 7 6 5 4 3 2 1 Motor Start ÄÄÙ ³ ³ ³ ³ ÀDrive Selects option enable ³ ³ ³ ÀÄ Factory use Note: There are 2 types of PWA's. ³ ³ ³ only One with drive select header on the Sectors ³ ³ ³ left, and one with header on the ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ right (like this). Pin positions 64 0 0 0 are the same. 35 0 0 1 0=open (off) 10 0 1 0 1=closed (on) 19 0 1 1 36 1 0 0 34 1 0 1 87 1 1 0 Add Mark 1 1 1 ST-4442E 94186-442 WREN 5 FH UNFORMATTED CAPACITY (MB) ________________442 FORMATTED CAPACITY (34 SECTORS) (MB) _____368 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________21180 CYLINDERS ________________________________1412 HEADS ____________________________________15 DISCS ____________________________________8 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________RLL TRANSFER RATE (mbytes/sec) _______________1.125 INTERFACE ________________________________ESDI TPI (TRACKS PER INCH) ____________________1280 BPI (BITS PER INCH) ______________________19600 AVERAGE ACCESS (ms) ______________________16 SINGLE TRACK SEEK (ms) ___________________3 MTBF (power-on hours) ____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __2.0 +5V START-UP (amps) __1.4 +5V TYPICAL (amps) ___0.8 TYPICAL (watts) ______23 MAXIMUM (watts) ______61 BUFFERED STEP PULSE RATE (micro sec) _____ WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A IBM AT DRIVE TYPE ________________________* * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)