Single Pair Ethernet to the field level
Single Pair Ethernet connects sensors, actuators and compact field devices directly to Ethernet. Space-saving, IP-based and ideal for modern machine architectures.
Direct IP communication over a single wire pair
Single Pair Ethernet (SPE) enables efficient, space-saving data transmission over a single wire pair. By extending Ethernet connectivity to the field level, SPE creates seamless IP-based communication for modern industrial, automation and IoT applications. Combining compact cabling, high performance and straightforward integration, SPE supports future-ready network architectures while reducing space requirements and installation effort.
SPE for devices, control cabinets and the field
SPE cables, patch cords and matching connectors provide end-to-end connectivity solutions for a wide range of applications, from device connections and control cabinets through to rugged IP67 field installations. Standardised Ethernet communication over a single wire pair enables sensors, actuators and other field devices to be integrated efficiently into modern networks.
SPE complements Industrial Ethernet
Industrial Ethernet remains the high-performance backbone of machines and production systems. Single Pair Ethernet extends this infrastructure to the field level, enabling seamless IP communication all the way to sensors, actuators and compact field devices – efficiently, space-savingly and with future scalability in mind.
SPE solutions
- SPE cables and patch cords
- SPE connectors
- IP20 device connections
- IP67 field connections
- IEC 63171 solutions
Benefits
- Less cabling and reduced installation space
- Direct IP communication
- Data and power via PoDL
- Simplified device integration
- Scalable field connectivity
Applications
- Sensors and actuators
- RFID systems and industrial cameras
- Measurement and testing equipment
- Decentralised modules and robotics
- Retrofit projects and Industrial IoT (IIoT)
Making field data directly accessible
SPE integrates data from sensors and field devices directly into IP-based networks. This facilitates monitoring, analytics, diagnostics, quality assurance and predictive maintenance.
Designing the right SPE solution
The optimum SPE solution is achieved by carefully aligning the application, operating environment and technical requirements. Data rate, transmission distance, protection class, connector system and cabling all influence the selection of suitable components. A well-designed solution ensures reliable connections and efficient integration of SPE into industrial networks.
Technical considerations
SPE simplifies cabling but requires careful matching of technical characteristics. Key factors include transmission performance, environmental conditions and the appropriate interface.
- A single wire pair for data transmission
- Optional data and power delivery via PoDL
- Data rates and transmission distances tailored to the application
- IP20 or IP67 protection to suit the environment
- Connector interfaces selected in accordance with IEC 63171
From requirements to solution
Every SPE application starts with a clear understanding of the specific requirements. The operating environment, end devices, data rate, transmission distance and protection class determine the appropriate combination of components, topology and connectivity solution.
- Analyse end devices and operating environment
- Define data rates and transmission distances
- Select protection class and connector system
- Match cabling, Power over Data Line (PoDL) and network topology
- Verify the connectivity solution and optimise it for installation
Implementing SPE with confidence
Datwyler IT Infra combines proven Ethernet expertise with industrial connectivity know-how. We support customers in selecting and designing SPE solutions that are precisely matched to their application, environment and installation requirements.
- Analyse application requirements and operating conditions
- Select suitable cabling, connector systems and protection classes
- Evaluate data rate, transmission distance and PoDL requirements
- Verify the connectivity solution and optimise it for installation
Explore related topics
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Assess your SPE application
Whether you are developing a new system, modernising existing installations or integrating sensors, our experts assess your requirements and develop the right SPE solution for your specific industrial application.
Frequently asked questions
What is Single Pair Ethernet?
Single Pair Ethernet (SPE) transmits Ethernet data over a single wire pair, enabling compact IP-based connectivity for sensors, actuators and field devices.
Is SPE a replacement for Industrial Ethernet?
No. SPE complements Industrial Ethernet. While Industrial Ethernet networks machines and systems, SPE extends IP communication to sensors, actuators and compact field devices.
What are the benefits of SPE?
SPE reduces cabling and installation space requirements, simplifies device integration and enables direct IP communication. Depending on the application, data and power can be transmitted over the same wire pair.
What is Power over Data Line?
Power over Data Line (PoDL) enables both data and power to be transmitted over the same wire pair, provided the devices and application support this functionality.
Which applications are suitable for SPE?
SPE is ideally suited to sensors, actuators, RFID systems, industrial cameras, measurement equipment, decentralised modules, robotics, retrofit projects and Industrial IoT (IIoT) applications.
