802.3cg

Definition

802.3cg is the Institute of Electrical and Electronics Engineers (IEEE) Ethernet standard for 10Mbps communication of single twisted pair. The standard was approved in 2019.

802.3cg covers:

• 10BASE-T1L, which is point-to-point, long reach communication operating at full duplex over a single twisted pair, with operation up to 1km.
• 10BASE-T1S, which is a multi-drop (up to 8 nodes) communication operating at half duplex over single twisted pair, with operation up to 25m.

10BASE-T1L and 10BASE-T1S

The naming of 10BASE-T1L and 10BASE-T1S come from the following:

• The “10” references a transmission rate of 10Mbps.
• "BASE” refers to baseband signals, which means that only Ethernet signals can be transported over the medium.
• “T” stands for “twisted pair.”
• “1” stands for 1 km range.
• "L” and “S” indicate long or short range.

While 10BASE-T1S is mostly associated with the Automotive industry, both are well-suited for Industrial applications as well.

What is the difference between 802.11 and 802.3 Ethernet?

802.11 is a wireless standard, while 802.3 is wired connectivity. 802.11 specifies medium-access and physical-layer specifications for 1Mbps and 2Mbps wireless connectivity between fixed, portable, and moving stations within a local area.