Technical Information 1-15
Serial interface specifications include:
n
Baud rate up to 19.2 KB per second
n
Word length - 5, 6, 7, or 8 bits
n
Stop bit - 1, 1.5, or 2 bits
n
Start bit - 1 bit
n
Parity bit - 1 bit (odd parity or even parity).
Serial interface signals are output through the system board’s 9-pin, D-subconnector. The
connectors are located at the rear of the system unit. Pin locations for the serial interface
connector are shown in Appendix A.
POWER SUPPLY
The power supply is mounted inside the system unit. It supplies power to the system board,
option boards, diskette drives, hard disks, keyboard, and mouse. A fan inside the power
supply provides system ventilation. The power supply supplies 145 watts of power.
Connector locations are in Appendix A.
DISKETTE DRIVE
Up to two diskette drives are supported. The installed 3 1/2-inch diskette drive is connected
by a single ribbon cable with two drive connectors. The diskette drive cable plugs directly
into the system board. Typically both diskette drives are terminated. Connector locations
are given in Appendix A.
HARD DISK DRIVE
Up to two IDE hard drives are supported. The system board has two IDE/PCI interface
connectors (primary and secondary) for connecting various storage devices such as hard
disk drives. Each connector supports up to two IDE devices.
The system ships with one internal 3 1/2-inch hard disk drive (1-inch high, thin-height)
installed behind the front panel. The drive cable plugs into the primary (fast) connector on
the system board.
KEYBOARD
The PS/2-style 104 key keyboard is standard equipment for the system. The keyboard
provides a numeric keypad, separate cursor control keys, and 12 function keys, capable of
up to 48 functions. Status lamps on the keyboard indicate: Num (Numeric) Lock, Caps
(Capital) Lock, and Scroll Lock key status. The keyboard’s six-pin connector plugs into the
rear of the system. The keyboard connector pin assignments are given in Appendix A.
