Keyboard And Mouse; Rj-45 Serial Port; Acpi - NEC Express5800/120Rf-2 User Manual

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.
Once the inactivity (lockout) timer has expired, the keyboard and mouse do not respond
until the previously stored password is entered. A Y-cable can be used if both a PS/2
mouse and keyboard are required at the same time.

RJ-45 Serial Port

The rear RJ-45 serial port is a fully functional serial port that supports any standard
serial device and provides support for serial concentrators. For server applications that
use a serial concentrator to access the server management features of the mother board,
a standard 8-pin CAT-5 cable from the serial concentrator is plugged directly into the
rear RJ-45 serial port. The 8 pins of the RJ-45 connector can be configured to match
either of two pin-out standards used by serial port devices.
To accommodate either standard, the J5A2 jumper block located directly behind the
rear RJ-45 serial port must be jumpered appropriately according to the desired standard.

ACPI

An Advanced Configuration and Power Interface (ACPI) aware operating system can
place the system into a state where the hard drives spin down, the system fans stop, and
all processing is halted. However, in this state the power supply is still on and the
processors are still dissipating some power such that the power supply fan and
processor fans are still running.
Note: ACPI requires an operating system that supports its
feature.
Only when the AC power is disconnected is the system completely
off.
The sleep states are defined as follows:
!
s0: Normal running state.
!
s1: Processor sleep state.
No context will be lost in this state and the processor caches will maintain
coherency.
!
s4: Hibernate or Save to Disk.
The memory and machine state are saved to disk. Pressing the power button or
other wakeup event restores the system state from the disk and resumes normal
operation. This assumes that no hardware changes have been made to the system
while it was off.
!
s5: Soft off.
Only the RTC section of the chipset and the BMC are running in this state.
1-10 System Overview
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