IEEE 802.3cg 10BASE-T1L

Single Twisted-pair Ethernet (SPE)

The publication IEEE 802.3cg-2019 - IEEE Standard for Ethernet - Amendment 5: Physical Layer Specifications and Management Parameters for 10 Mb/s Operation and Associated Power Delivery over a Single Balanced Pair of Conductors enabled Ethernet long reach applications. The  10BASE-T1L variant allowed servicing such applications as industrial process control, building automation, webcameras, access control and sensors at a distance of up to 1 km and a speed of  10 MB/s. Being a power over data line system (PoDL) the remote terminals that are powered devices (PDs) can be powered with 20 W at 1 km and 52 W at 300 m. 

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