Before the target can be reactivated, you must stop any tip or cu tools which may be using the serial line.
The target is reactivated with this command:
% chadmin -activate name
name is the name of your target.
The DebugServer will synchronize with the DebugAgent and the DebugAgent will switch to a binary protocol mode. At this stage, you must use the chconsole to gain access to the system debugging console.