NETWORK PLANNING
10 Mbps Ethernet Collision Domain
Maximum Ethernet Cable Distance
Cable Type | Maximum Length |
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Twisted Pair, Categories 3, 4, 5 | 100 m (328 ft) |
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Thin Coax | 185 m (607 ft) |
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External Transceiver Drop | 50 m (165 ft) |
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Maximum Network Diameter Using Repeaters
Repeater Type | Twisted Pair | |
| and Number | |
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1 | Class I | 200 m (656 ft) |
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1 | Class II | 200 m (656 ft) |
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2 | Class II | 205 m (672.4 ft) |
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SMC 5-4-3 Rule
Between any two PCs or other stations in the same 10 Mbps collision domain, there may be:
•up to 5 link segments in series
•up to 4 repeaters (hubs)
•up to 3 populated cable segments, that is, segments attached to two or more PCs (coax networks only)*
*The remaining two segments are unpopulated; these are known as inter- repeater links or IRLs. This distinction between populated and unpopulated segments is significant for coax networks only.
