Here is a summary of the various maximum segment length defined for Ethernet. length are valid for networks with only one repeater or repeating hub. Further analysis is required for networks with more than one repeater.
Standard
Maximum Cable Segment Length in Meters
10Base5
500
10Base2
185
10Base-T
100
10Base-FL
2000
100Base-TX
100
100Base-FX
400
100Base-T4
100
100Base-T2
100
1000Base-LX
550 if 62.5 µ or 50 µ multimode fiber3000 if 10 µ singlemode fiber
1000Base-SX
250 if 62.5 µ multimode fiber550 if 50 µ multimode fiber
1000Base-CX
25
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