How The Emp Works - NEC EXPRESS5800 LC1400 series User Manual

How the EMP Works

The EMP shares use of the COM 2 port with your system. When the EMP has control
of the port, the port operates in command state. When the system has control of it, the
port operates in redirect state. When connecting to a server, the EMP checks to
determine the current COM 2 port state. The following discussion covers how the EMP
functions in each state:
n
Command state is the default COM 2 state. In this state, the EMP communicates
with the server, allowing the client to remotely reset or power the server up or down.
The client can also view the server's System Event Log (SEL), Field Replaceable
Unit (FRU) information, or Sensor Data Record (SDR) table.
n
In redirect state, the EMP serves as a PC ANSI terminal window for BIOS console
redirection. Commands typed in this terminal window are transmitted through BIOS
to the server's console, and text displayed on the server console are displayed on the
EMP's terminal window. With the EMP in this state, you can remotely view boot
messages, access BIOS setup, and run DOS text mode applications through the
EMP's terminal window.
EMP in Command State
Emergency Management Port Console C-3