На самом деле законам природы не противоречит. Но я имел в виду p2p, конечно. Кстати, по ссылке интересные подробности: http://www.ieee802.org/3/cg/public/Jan2019/Tutorial_cg_0119_final.pdf
10BASE-T1L Basics
Simple, echo cancelled, 7.5 MBd full-duplex PHY
No FEC, PAM-3 transmission
1Vpp, 4B3T encoded signal
PCS coding minimizes disparity, keeping signal within voltage bounds (important for industrial applications)
Optional 2.4Vpp transmit amplitude Auto-Negotiated
1000m reach (18AWG cable)
10BASE-T1S basics
Half-duplex or full-duplex point-to-point (15m)
Compatible with PoDL(Clause 104) powering
Half-duplex multidrop (8 nodes, 25m)
Multidrop power not defined in 802.3cg
12.5 MBd, 1Vpp, 4B/5B encoded DME signal
DME coding enables low cost and multidrop
No FEC
Optional half-duplex shared-medium/multidrop using CSMA/CD