NEC NEAX Express, Руководство по обслуживанию и справочник

Страница: 31 / 242

System Overview 1-13
Peripheral Controller
The advanced integrated peripheral controller supports two serial ports, one parallel
port, diskette drive, PS/2-compatible keyboard and mouse, and integrated Real Time
Clock (RTC). The system
provides the connector interface for each port.
Serial Ports
Both serial ports are relocatable. Each serial port can be set to one of four different
COM ports and can be enabled separately. When disabled, serial port interrupts are
available to add-in boards.
Parallel Port
One IEEE 1284-compatible 25-pin bidirectional EPP (supporting levels 1.7 and 1.9)
parallel port is provided. BIOS programming enables the parallel port and determines
the port address and interrupt. When disabled, the interrupt is available to add-in
boards.
Keyboard and Mouse
The keyboard/mouse controller is PS/2-compatible. The server may be locked
automatically if there is no keyboard or mouse activity for a predefined length of time,
if specified through the System Setup Utility (SSU). Once the inactivity (lockout) timer
has expired, the keyboard and mouse do not respond until the previously stored
password is entered.
ACPI
The server supports the Advanced Configuration and Power Interface (ACPI) as
defined by the ACPI 1.0 and PC97 specifications. An ACPI aware operating system can
put the system into a state where the hard drives spin down, the system fans stop, and
all processing is halted. However, the power supply will still be on and the processors
will still be dissipating some power, so the power supply fan and processor fans will
still run.
!
CAUTION
The system power is off only when the AC power cords are
disconnected from the back of the chassis.
External Device Connectors
The external I/O connectors provide support for a PS/2 compatible mouse and a
keyboard, connectors for VGA monitor, 2 serial port connectors, a parallel port
connector and two USB connections.