The command prompt issued by the
controller is one of three characters, depending on the controller
state. If the controller is in the Observation state (the default
state after initialization completes for all mitigation modes) the
prompt issued is O> .
If the controller is in the Idle
state (the default state after initialization for Monitoring only
or Emulation mode), the prompt issued is I> . If the controller is in the Detect
only state, the prompt issued is D>
(the default state after initialization for Detect and Testing or
Detect only mode).