SMC Networks SMC6608T Mbps Fast Ethernet Collision Domain, SMC 3 2 Rule for Class II Repeaters

INSTALLATION

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-T 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 and Class II Repeaters

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

•up to 2 link segments and

•only 1 Class I or Class II repeater (hub)

Maximum 100BASE-T Network Diameter

Repeater Type		Twisted Pair		Twisted Pair/Fiber
and Number		100BASE-TX/T4		100BASE-T4/FX		100BASE-TX/FX
1 Class	I	200 m (656 ft.)		231 m (757.7 ft.)		260.8 m (855.4ft.)
1 Class	II	200 m (656 ft.)		304 m (997.1 ft.)		308.8 m (1012.9 ft.)
2 Class	II	205 m (672.4 ft.)		236.3 m (775.1 ft.)		216.2 m (709.1 ft.)
Maximum 100BASE-T 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.)
MII		Any two devices			0.5 m (1.6 ft.)

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