TXOne Networks
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Deployment Architecture

Platform Architecture

Explore how TXOne Networks’ comprehensive security solutions integrate across all levels of the Purdue model. Our defense-in-depth approach ensures protection from the enterprise network down to the process level.

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Understanding the Purdue Model

The Purdue Enterprise Reference Architecture (PERA), also known as the Purdue Model, is a structural model for industrial control system (ICS) security. It provides a framework for organizing network architecture in manufacturing and industrial environments.

4/5

Enterprise & Business Network

Business planning, logistics, and IT systems

DMZ

Industrial DMZ

IT/OT boundary with controlled data exchange

3

Site Operations

Manufacturing operations and site-level control

2

Supervisory Control

HMI, SCADA, and engineering workstations

1

Basic Control

PLCs, RTUs, and control devices

0

Process

Physical processes, sensors, and actuators

TXOne’s Defense-in-Depth Approach

Our solutions are specifically designed to operate at Levels 0-3 of the Purdue model, where traditional IT security tools cannot function effectively due to:

  • Legacy systems that cannot be patched or updated
  • Real-time requirements that prohibit active scanning
  • Air-gapped environments without internet connectivity
  • Specialized protocols not understood by IT tools
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