| Device | Application |
| Signal Generator | To create binary and analog events |
| Protocol Analyzer | To store and analyze all network traffic packets |
| DUT | IED device which is under test |
| Client Simulator | To initiate connection Two-party association application (TPAA) if needed |
| Goose simulator | Generate the correct (incorrect) goose packets |
| Test Master | Control the complete conformance process |
| Time master | For time synchronization |