| BDEW | Bundesverband der Energie- und Wasserwirtschaft |
| Connectivity package | A collection of software and information related to a specific protection and control IED, providing system products and tools to connect and interact with the IED |
| DNP3 | A distributed network protocol originally developed by Westronic. The DNP3 Users Group has the ownership of the protocol and assumes responsibility for its evolution. |
| Ethernet | A standard for connecting a family of frame-based computer networking technologies into a LAN |
| FTP | File transfer protocol |
| FTPS | FTP Secure |
| IDS | Intrusion detection system |
| IEC | International Electrotechnical Commission |
| IEC 60870-5-104 | Network access for IEC 60870-5-101 |
| IEC 61850 | International standard for substation communication and modeling |
| IED | Intelligent electronic device |
| IEEE | Institute of Electrical and Electronics Engineers, Inc. |
| IEEE 1686 | Standard for Substation Intelligent Electronic Devices' (IEDs') Cyber Security Capabilities |
| IP | Internet protocol |
| ISO | International Standard Organization |
| LAN | Local area network |
| NERC CIP | North American Electric Reliability Corporation - Critical Infrastructure Protection |
| OS | Operating system |
| PCM600 | Protection and Control IED Manager |
| TCP | Transmission Control Protocol |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TLS | Transport layer security |
| UAC | User account control |
| VPN | Virtual Private Network |
| WHMI | Web human-machine interface |