| 4DIAC | Framework for Distributed Industrial Automation & Control |
| ARPU | Average Revenue Per User |
| ATEX | Atmosphéres Explosibles |
| BFOC | Bayonet Fibre Optic Connector |
| BSD | Berkeley Software Distribution |
| CFCSS | Control-Flow Checking by Software Signatures |
| DS | Deferrable Server |
| ECCA | Enhanced Control-Flow Checking Using Assertions |
| EEGI | European Electricity Grid Initiative |
| EERA | European Energy Research Alliance |
| EPSG | Ethernet Powerlink Standardization Group |
| ERDF | European Regional Development Fund |
| ERP | Enterprise Resource Planning |
| eRSTP | enhanced Rapid Spanning Tree Protocol |
| FTP | File Transfer Protocol |
| GPRS | General Packet Radio Service |
| HIL | Hardware-In-the-Loop |
| HR | Hyper Ring |
| HSPA | High-Speed Packet Access |
| HSR | High Speed Redundancy |
| ICLEI | International Council for Local Environmental Initiatives |
| ICMP | Internet Control Message Protocol |
| IEC | International Electrotechnical Commission |
| IEEE | Institute of Electrical and Electronics Engineers |
| IGBT | Insulated-Gate Bipolar Transistor |
| IGMP | Internet Group Management Protocol |
| iPCF | Industrial Point Coordinated Function |
| IPv6 | Internet Protocol version 6 |
| ISGAN | International Smart Grid Action Network |
| ISO/OSI | International Organization for Standardization/Open Systems Interconnection |
| ITU | International Telecommunications Union |
| LED | Light Emitting Diode |
| LTE | Long-Term Evolution |
| MAN | Metropolitan Area Networks |
| MAS | Multi Agent System |
| MES | Manufacturing Execution System |
| MIMO | Multiple Input, Multiple Output |
| MRP | Media Redundancy Protocol |
| MRPD | Media Redundancy for Planned Duplication |
| MSTP | Multiple Spanning Tree Protocol |
| MTBF | Mean Time Between Failures |
| MTTF | Mean Time To Failure |
| MTTR | Mean Time To Repair |
| NPP | Non Pre-emptive Protocol |
| OFDM | Orthogonal Frequency Division Multiplexing |
| OFDMA | Orthogonal Frequency-Division Multiple Access |
| PCF | Polymer Clad Fibre |
| PCP | Priority Ceiling Protocol |
| PE | Priority Exchange Server |
| PIP | Priority Inheritance Protocol |
| PIR | Passive Infra-Red |
| PL | Performance Level |
| POF | Polymer Optic Fiber |
| PS | Polling Server |
| REDWC | Recomputing with Duplication with Comparison |
| RESO | Recomputing with Shifted Operands |
| RESWO | Recomputing with Swapped Operands |
| RMBF | Rate Monotonic Best Fit |
| RMFF | Rate Monotonic First Fit |
| RMNF | Rate Monotonic Next Fit |
| RSTP | Rapid Spanning Tree Protocol |
| RTOS | Real-Time Operating System |
| RTU | Remote Terminal Unit |
| SC | Standard Connector |
| SET | Strategic Energy Technology |
| SFP/LC | Small Form-factor Pluggable/Lucent Connector |
| SIFB | Service Interface Function Block |
| SIL | Safety Integrity Level |
| SNMP | Simple Network Management Protocol |
| SS | Sporadic Server |
| STP | Spanning Tree Protocol |
| UMTS | Universal Mobile Telecommunications System |
| VLAN | Virtual Local Area Network |
| VoIP | Voice over Internet Protocol |
| VPN | Virtual Private Network |
| VRRP | Virtual Router Redundancy Protocol |
| WiFi | Wireless Fidelity |
| WiMAX | Worldwide Interoperability for Microwave Access |
| WSUS | Windows Server Update Services |
| WTO | World Trade Organization |