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The system can be controlled by the OCP. The MBM listens to the OCP switch
and pushbuttons. When the state of the switch changes from off to on, the
machine responds by executing its power-up routines, traces of which you’ll see
on the OCP display and on the console, if you are using an AMS or PC as a
console.
If you are using a graphics terminal, you will not see evidence of power-up on it
until the SRM console boots. The first time the system boots you will not see the
console prompt, P00>>> until you hit carriage return a couple of times. Once at
the prompt you’ll want to execute the set console graphics SRM console
command.
The following table shows the switch positions and their function
Keyswitch Position Function
Off System is powered off and cannot be powered on remotely.
On
System is powered on and can be powered on or off remotely.
Secure
System is powered on and cannot be powered on or off remotely.
The OCP ID push-wheel is on the front of the OCP panel establishes memory
addresses.
See OCP Pushbuttons for a description of their use.
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