Installation guide

Components of the Console Subsystem
Components of the Console Subsystem
Console
Subsystem
Figure 2–1 identifies the components of the console subsystem.
• Console program — Software that executes when operating
system software is not executing; provides the user interface,
interprets and executes user commands.
When the console program is executing, the system is
running in console mode.
• I/O module — module in the card cage at the rear of the
system.
• Console terminal port — Connects the console terminal to
the system; located on the I/O module.
• Console terminal — Used exclusively for entering console
commands when the console program is executing; connects
to the console terminal port on the I/O module.
• Auxiliary serial port — Connects the remote access device,
which can function as a remote console device, to the system;
located on the I/O module.
• Remote access device , — External hardware, possibly at
a remote site, that can act as a console terminal.
• Ethernet port — Connects the console subsystem to an
Ethernet network; devices on this network can function as
remote access devices; depending on the type of system you
ordered, one or two Ethernet ports are located on the I/O
module.
2–2 Console Subsystem