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Instrava curated instruments are carefully selected to help industrial operators build stable, scalable, and future-ready process automation networks. This Ethernet-APL Field Switch is specifically designed for field-level Ethernet-APL deployment, enabling long-distance industrial Ethernet communication and PoDL power delivery without requiring an additional auxiliary power supply.
The 8-port Ethernet-APL Field Switch integrates 2 Trunk interfaces and 6 Spur interfaces into a compact industrial-grade platform, allowing seamless expansion of Ethernet-APL process networks in demanding industrial environments. The switch receives both power and data from upstream Ethernet-APL power switches through the Trunk interfaces and directly distributes PoDL power and Ethernet communication to field instruments through the Spur interfaces.
Built around IEEE802.3cg-2019 10BASE-T1L technology, the switch supports transparent Ethernet transmission for industrial protocols such as PROFINET, MODBUS TCP/IP, EtherNet/IP, CC-Link IE, and POWERLINK. This allows users to modernize legacy field networks into intelligent Ethernet-APL architectures suitable for Industry 4.0 and Industrial IoT applications.
With IP66 protection, aluminum waterproof housing, long-distance communication capability, and industrial PoDL support, this Ethernet-APL Field Switch is ideal for harsh process industries including oil & gas, chemical plants, pharmaceuticals, power generation, and water treatment systems.
Ethernet-APL Switch Description
Long-Distance Ethernet-APL Communication with Integrated PoDL Distribution
This industrial Ethernet-APL Field Switch is engineered to simplify field-level networking while reducing installation complexity and cabling costs.
The two Trunk ports receive 48–54VDC PoDL voltage and Ethernet signals directly from an upstream Ethernet-APL power switch. These Trunk interfaces support Ethernet-APL Power Classes 3 and 4, enabling stable long-distance communication and power transmission over a single twisted pair cable.
The six Spur interfaces act as powered Ethernet-APL output ports, supplying 12VDC PoDL power directly to connected Ethernet-APL field devices while simultaneously transmitting Ethernet data transparently.
Key advantages include:
The switch supports cascading expansion through dual Trunk interfaces, making it highly suitable for large-scale Ethernet-APL network deployment across industrial production facilities.


Industrial IP66 Design for Harsh Process Environments
Designed for demanding industrial field applications, this Ethernet-APL Field Switch combines rugged mechanical protection with stable industrial Ethernet performance.
The device uses a durable cast aluminum waterproof enclosure with IP66 protection, ensuring reliable operation in outdoor and harsh industrial environments exposed to moisture, dust, vibration, and electromagnetic interference.
Additional industrial-grade features include:
Unlike conventional Ethernet switches, this Ethernet-APL Field Switch is optimized specifically for Ethernet-APL field instrumentation and SPE-based industrial communication networks. It helps operators build efficient, low-power, long-distance digital process automation systems with simplified infrastructure requirements.
The switch uses DIP switches to manually enable or disable PoDL output on each Spur interface, allowing flexible field power management for Ethernet-APL instruments and sensors. Users should ensure connected field devices comply with Ethernet-APL standards and support 9–15VDC PoDL input specifications.
Ethernet-APL Switch Parameter
| Parameter Category | Artículo | Especificación |
|---|---|---|
| Ethernet-APL Interfaces | Interface Type | 5.08-3Pin pluggable terminal |
| Ethernet Standard | IEEE802.3cg-2019, 10BASE-T1L | |
| Communication Speed | 10Mbit/s full duplex | |
| Transmission Medium | Single pair twisted cable | |
| Signal Voltage | Trunk: 2.4Vpp / Spur: 1.0Vpp | |
| Trunk Distance | Up to 1000m | |
| Spur Distance | Up to 200m | |
| Port Quantity | 2 × Trunk ports, 6 × Spur ports | |
| Supported Protocols | PROFINET, MODBUS TCP/IP, EtherNet/IP, CC-Link IE, POWERLINK | |
| PoDL Power | Trunk Input Voltage | 48–54VDC |
| Trunk Power Classes | Ethernet-APL Class 3 & 4 | |
| Spur Output Voltage | 12VDC | |
| Spur Output Power | Max 2W per port | |
| Spur Power Classes | Ethernet-APL Class A & C | |
| Protection | Reverse Polarity Protection | Soporte |
| Surge Protection | Soporte | |
| Medio ambiente | Grado de protección | IP66 |
| Temperatura de funcionamiento | -20°C to +75°C | |
| Mechanical | Material de la carcasa | Cast aluminum waterproof enclosure |
| Dimensiones | 200 × 130 × 80 mm | |
| Peso | 1.2kg | |
| Instalación | Backplate screw mounting |
Instrava OEM/ODM
Instrumentos fiables. Soluciones que se adaptan a su aplicación.
Instrava se centra en ofrecer soluciones industriales fiables a través de productos cuidadosamente seleccionados, optimización basada en aplicaciones y personalización flexible. Seleccionamos instrumentos probados de fabricantes de confianza para garantizar una calidad constante, optimizamos soluciones basadas en condiciones de trabajo reales para resolver retos prácticos y ofrecemos configuraciones a medida para satisfacer las necesidades de aplicaciones específicas.
Combinando la experiencia en selección con la comprensión de las aplicaciones, Instrava ayuda a sus clientes a reducir riesgos, mejorar la eficacia y obtener resultados fiables en entornos industriales complejos.
Instrava diseña el camino correcto para digitalizar sus operaciones: de instrumentos heredados a sistemas conectados y basados en datos.

What is an Ethernet-APL Field Switch?
An Ethernet-APL Field Switch is an industrial switch designed for process automation networks using Ethernet-APL and Single Pair Ethernet (SPE). It connects field instruments over long distances while delivering both data and power through a single twisted-pair cable using PoDL technology.
How does this Ethernet-APL Field Switch work without auxiliary power?
This Ethernet-APL Field Switch receives both power and communication signals directly from the upstream APL power switch through its Trunk ports. It does not require an external local power supply, making installation simpler and reducing wiring complexity in field deployments.
What are the port configurations of this Ethernet-APL Field Switch?
The switch includes:
| Port Type | Quantity | Función |
|---|---|---|
| Trunk Ports | 2 | Cascade expansion and upstream power input |
| Spur Ports | 6 | Connect and power APL field devices |
The Trunk supports Ethernet-APL power classes 3 and 4, while Spur ports support APL power classes A and C.
What transmission distances are supported by the Ethernet-APL Field Switch?
The switch supports long-distance industrial Ethernet communication:
Distance may vary depending on cable size, power consumption, and PoDL load conditions.
Which industrial protocols are supported by the Ethernet-APL Field Switch?
The switch supports transparent transmission for standard industrial Ethernet protocols, including:
It complies with IEEE802.3cg-2019 and 10BASE-T1L Ethernet-APL standards.
Is this Ethernet-APL Field Switch suitable for harsh industrial environments?
Yes. The switch is designed for demanding industrial and process automation environments:
These features make it ideal for chemical plants, oil & gas facilities, and smart process automation systems.
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Cada instrumento se evalúa en función de su rendimiento, estabilidad e idoneidad para la aplicación, no sólo de sus especificaciones o precios.
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