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Definition: single pair Ethernet


A family of Ethernet standards that uses one wire pair rather than two or four as in regular Ethernet. Single pair Ethernet transmits full duplex. Designed to connect sensors in vehicles as well as industrial environments, there is also a power option similar to PoE. Power over Data Lines (PoDL) delivers up to 50 watts of 12, 24 or 48 volts DC and is an option for the following xBase-T1 standards. See 802.3, Ethernet and PoE.

    IEEE      Base      Speed   Distance
  Standard    Name      (Mbps)  (meters)

  802.3cg  10Base-T1L      10    1,000 

  803.3bw  100Base-T1     100       50

  802.3bp  1000Base-T1   1000       10