Service Manager 2012 SP1 installs a Operations Manager agent on the Service Manager
So instead of having to rely in agentless monitoring of the Service Manager management servers we now have the agent supplied in the box , not that the install path is also in service manager not in operations manager
On the operations Manager Server we need to ensure that manual agent install is permitted
In the control panel on the service manager server add the management group that use used for operations manager , and you will see the agent in operations manager after you apply the changes