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inadvertently halting the system by pressing Break on the console
terminal. Halting the system causes all activity to stop.
•
The Operation switch on the CPU cover panel is set to Normal
(indicated by an arrow).
•
The baud rate switch inside the CPU cover panel is set to 9600.
•
The Write-Protect button for each RF-series ISE is set to out (not lit).
This setting allows system software to write to the storage element.
•
The Run/Ready button for each RF-series ISE is set to in (glows green
when the storage element is not being used). This setting makes the
storage element available for use (on line).
•
The Halt button on the SCP is set to out (not lit).
•
For expanded systems using power bus cables to link an expander(s),
the power switches on all expander power supplies should remain on
(set to 1) at all times. The system power supply sends the power bus
signal needed to turn the expanders on or off.
2.2.2 Special Operation
Certain operations require that you change some of the normal operating
settings.
•
If you need the ability to halt the system from the console terminal, for
example, when installing system software or performing certain types
of backup, set the Function switch to up (dot inside the circle). This
allows you to halt the system by pressing Break on the console terminal.
•
If you want data on a particular ISE to be write-protected, during
backup procedures for example, you must set the Write-Protect switch
to in (glows).
NOTE: ISEs containing system software and user accounts must remain
write-enabled. ISEs containing applications or sensitive data may be
write-protected.
•
If you want to use the Language Selection Menu to select a new
language for the console program before you turn on your system, set
the Operation switch to the Action mode. A human profile indicates the
Action mode. Set the Function switch to down (dot outside the circle).
When you turn on your system, a Language Selection Menu appears,
as shown in Figure 2–1.
2–2 DECsystem 5500 Operation
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