How The Emp Works - NEC LS2400 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:
Command state is the default COM 2 state. In this state, the EMP
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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.
In redirect state, the EMP serves as a PC ANSI terminal window for
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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 is 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 C-3