For the correct display of the SNMP-Traps you have to import the manufacturerers SNMP Trap-MIB. The conversion of AKCP Trap-MIB was already done and needs only to be downloaded in OpenNMS.
For this, you have to copy the file akcp.spagent.eents.xml into the directory $OPENNMS_HOME/etc/events.
akcp.spagent.events.xml (Converted AKCP SNMP Trap MIB)
You can edit the file without restart of OpenNMS. A configuration reload could be initiated by following command:
/opt/opennms/bin/send-event.pl uei.opennms.org/internal/reloadDaemonConfig --parm 'daemonName Eventd'
All new incoming traps are then resolved correctly according to the MIB description.