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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