Ethernet Physical Media (created by Digital Equipment, Intel and Xerox)
| 10Base2 | Thinnet 50-ohm coax 185m, 30 hosts per segment Physical and logical bus with AUIs | 100BaseFX | Fiber cabling 62.5/125-micron multimode fiber point-to-point, 400m ST or SC connectors |
| 10Base5 | Thicknet 50-ohm coax 500m and 208 hosts per segment Physical and logical bus with AUIs | 1000BaseCX | Copper shielded twisted-pair 25m |
| 10BaseT | EIA/TIA cat 3,4 or 5, using two-pair unshielded twisted-pair (UTP) wiring. 100m and 1 user per segment Physical star and logical bus with RJ-45 | 1000BaseT | Cat 5, four-pair UTP wiring, 100m |
| 100BaseTX | EIA/TIA cat 5,6 or 7 UTP two-pair wiring 100m and 1 user per segment physical star and logical bus with RJ-45 MII | 1000BaseSX 1000BaseLX | Multi-mode fiber 62.5/50-micron, 260m Single-mode fiber 9-micron core, 10km |
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