Think the OP meant ethernet last mile which on copper is 2BASE-TL or more likely 10PASS-TS Though I suspect that most ELM is delivered over fibre and the CPE

Think the OP meant ethernet last mile which on copper is 2BASE-TL or more likely 10PASS-TS Though I suspect that most ELM is delivered over fibre and the CPE just presents a RJ45 fo ryou to plug your TOR Router into.