SMC Networks SMC6724L2 Mbps Ethernet Collision Domain, Maximum Network Diameter Using Repeaters

NETWORK PLANNING

Maximum Network Diameter Using Repeaters

Repeater Type		Twisted Pair
and Number		100BASE-TX
1	Class I	200 m (656 ft.)
1	Class II	200 m (656 ft.)
2	Class II	205 m (672.4 ft.)

Maximum Fast Ethernet Cable Distance

Cable Type	Connecting	Max. Distance
Twisted Pair	Any two devices	100 m (328 ft.)
Fiber	Switch to switch, server or PC
	Half duplex	412 m (1,351.4 ft.)
	Full duplex	2 km (1.24 mi.)

10 Mbps Ethernet Collision Domain

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.

Maximum Ethernet Cable Distance

Cable Type	Maximum Length
Twisted Pair, Categories 3, 4, 5	100 m (328 ft.)
Thin Coax	185 m (607 ft.)
External Transceiver Drop	50 m (165 ft.)

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