Single Pair Ethernet

Reliable connections for the highest demands.

What is Single Pair Ethernet?

Single Pair Ethernet (SPE) is a network technology that enables the transmission of data via a single pair of copper wires. This simplified cabling technology is an evolution of traditional Ethernet and is specifically designed for applications in industrial environments and the Internet of Things (IoT). SPE uses only one pair of wires to transmit data, making it a cost-effective and flexible solution for network infrastructures that require simple cabling.

 

What are the advantages of Single Pair Ethernet?

A major advantage of Single Pair Ethernet is the reduction in cabling costs. As only one pair of wires is required, installation costs can be reduced and cabling simplified. This is particularly advantageous in large industrial plants or in scenarios where many devices need to be connected over long distances.

Another advantage of SPE is its support for Power over Data Line (PoDL). This allows power and data to be transmitted over the same cable, eliminating the need for additional power cables and connections. This feature is particularly useful in industrial environments where devices often need to be powered directly without installing separate power supply lines.

SPE also offers an impressive range of up to 1,000 metres, making it suitable for connecting devices over longer distances in industrial networks or long-range IoT applications. The technology is also robust and optimised for use in harsh environments where physical conditions play an important role.

The data transfer rates of Single Pair Ethernet typically reach up to 1 gigabit per second (Gbps), which is sufficient for many industrial applications and IoT scenarios. These speeds, combined with the ease of cabling and the ability to transmit power, make SPE a flexible and future-proof solution.

Our products

RS485

RS485 to SPE media converter

compact industrial 1-port device server

The RS485 to Single Pair Ethernet (SPE) converter supports the IEEE 802.3cg, 10BASE-T1S standards and enables the connection of RS485 devices to SPE networks, suitable for industrial environments.

Features:

  • Support for various RS485 protocols: Including UART, Modbus and other protocols with separate hardware components
  • Local configuration: Enables local configuration and settings
  • Configurable termination for RS485: Supports configurable bus terminations
  • Fail-safe logic: Prevents faulty data transmission when inputs are open on the RS485 side.
  • Microchip circuits: Based on Microchip circuits compatible with IEEE 802.3cg, 10BASE-T1S and Microchip processors.
  • Multiple data transmission modes:
    • Transparent mode: transparent transmission between RS485 and IP/TCP/TELNET.
    • Sniffer mode: Transparent transmission from RS485 RX-only to IP/TCP or IP/UDP.
    • Protocol mode: The converter only responds to configured RS485 bus addresses.
    • Connection of up to 32 devices
    • Multihost access enables multiple hosts/servers to share serial interfaces.
    • Support for token bus.