DTK Computers Technical Information Sheet for PTI-217 S=shorted, O=open DIP switch 1=on 0=off J1:HD Activity Light FDC Enable <1> Vcc JP1 JP2 Function <2> Activity S S Enable FDC <3> Activity O O Disable FDC <4> Vcc 456 JP4:COM port Addresses (pins :::) JP3:Embedded HDD Pins Shorted Port 1 Port 2 123 S Enable 1-2,4-5 COM3 COM4 O Disable 2-3,5-6 COM1 COM2 1-2,5-6 COM3 COM2 JP5:Spindle Motor 2-3,4-5 COM1 COM4 1-2 S Single Speed 2-3 S Dual Speed JP6:Precompensation (ns) 1-2 S 83 to 250 JP7:Game Port 2-3 S 83 to 125 S Enable O Disable JP8:Old Drive Types 1-2 S Normal Operation JP9:Parallel Port Address 2-3 S Old Type Drives 1-2 S LPT2 456 2-3 S LPT1 JP10:Serial IRQ's (pins :::) Shorted Port 1 Port 2 123 JP11:Parallel IRQ 2-3,4-5 IRQ4 IRQ3 1-2 S IRQ5 1-2,5-6 IRQ3 IRQ4 2-3 S IRQ7