1-16 Technical InformationNOTE: Any interrupts used for the built-in serialports are not available for ISA parallel ports.Table Section 1-7 Serial Port Addressing and InterruptsStarting I/O Address Interrupt Level Port3F8* IRQ04 COM12F8* IRQ03 COM23E8 IRQ04 COM32E8 IRQ03 COM4*Default for serial portSerial interface specifications include:n Baud rate up to 19.2 KB per secondn Word length - 5, 6, 7, or 8 bitsn Stop bit - 1, 1.5, or 2 bitsn Start bit - 1 bitn Parity bit - 1 bit (odd parity or even parity).Indicator PanelThe indicator panel is attached to the front panel and contains the power lamp, hard disk drivebusy lamp, and suspend button. The indicator panel electrically attaches to the system boardthrough connector J11 (suspend connector), J14 (hard disk drive busy lampconnector), and J16 (power lamp connector).POWER SUPPLYThe power supply is mounted inside the system unit. It supplies power to the system board, op-tion boards, diskette drives, hard disks, keyboard, and mouse. The power supply is connected tothe system board through connector J6. A fan inside the power supply provides proper ventilationfor the system. The power supply in the desktop supplies 145W of power. The minitower powersupply provides 200W. Power requirements and specifications for both power supplies are pro-vided in Appendix C.
