Master Terminal Unit (MTU)

{
  "id": "MLC-T-CYB-002619",
  "term": "Master Terminal Unit (MTU)",
  "field": "Cybersecurity",
  "definition": "1. A controller that also acts as a server that hosts the control software that communicates with lower-level control devices, such as remote terminal units (RTUs) and programmable logic controllers (PLCs), over an OT network. In a SCADA system, this is often called a SCADA server, MTU, or supervisory controller.\n\n2. See Control Server.",
  "abbreviation": [
    "Control Server",
    "MTU"
  ],
  "synonyms": [
    "MTU"
  ],
  "references": [
    "NIST SP 800-82 Rev. 2 [Superseded]; NIST SP 800-82r3",
    "NIST SP 800-82 Rev. 2 [Superseded]",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/master-terminal-unit-mtu/"
}