SMC Networks 1000 manual Mbps Fast Ethernet Collision Domain, SMC 3-2 Rule for Class II Repeaters

NETWORK PLANNING

100 Mbps Fast Ethernet Collision Domain

SMC 3-2 Rule for Class II Repeaters

Between any two PCs or other stations in the same 100BASE-TX collision domain, there may be:

•up to 3 link segments and

•up to 2 Class II repeaters (hubs)

SMC 2-1 Rule for Class I Repeaters

Between any two PCs or other stations in the same 100BASE-TX collision domain, there may be:

•up to 2 link segments and

•up to 1 Class I repeater (hub)

Maximum 100BASE-TX 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.)

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