Keyswitch Positions - Compaq AlphaServer GS60 Operation Manual

The keyswitch labels can be in English or international versions as shown in
Figure 3-11.
Table 3–3 Keyswitch Positions
Position Effect
Removes 48 VDC power from the system. Power is still supplied to the
Disable
CCL module. This switch is useful for field service when they wish to
power down the system in an orderly way, prior to switching the power
off completely while replacing or installing a new piece of hardware.
Secure Prevents input from the console device.
On DIGITAL UNIX or OpenVMS systems, used to protect against
inadvertent or inadvisable entry into SRM console mode by typing
Ctrl/P at the console device. For example, you might switch the system
to Secure when a critical program is running, to prevent someone from
unknowingly trying to enter SRM console mode.
For Windows NT systems, the Secure keyswitch position is used in
controlling transitions from Windows NT to SRM console mode, as
described in Section 8.2.
Enable Position used while the machine executes programs.
On DIGITAL UNIX or OpenVMS systems, you can interrupt program
execution and enter SRM console mode by typing Ctrl/P at the console
device when the switch is in this position.
Ctrl/P does not work on Windows NT systems. There are several ways
to interrupt program execution on these systems. See Section 8.2 for
instructions on how to switch between Windows NT, AlphaBIOS Setup,
and SRM console mode.
Restart A momentary switch position, used to reinitialize the system. Registers
are reinitialized and system self-test starts running. You can thus restart
the system without removing power from the system, which can cause
wear and tear on the machine.
AlphaServer 8400 System 3-23