SMC Networks SMCBGLLCX1 Mbps Fast Ethernet Collision Domain, Maximum Fast Ethernet Cable Distance

CONNECTIVITY RULES

100 Mbps Fast Ethernet Collision Domain

Maximum Fast Ethernet Cable Distance

Type	Cable Type	Max. Cable Length
100BASE-TX	Category 5 100-ohm UTP or STP	100 m (328 ft.)
100BASE-FX	50/125 or 62.5/125 micron core	2 km (1.24 miles)
Multimode	multimode fiber (MMF)
100BASE-FX	9/125 micron core single-mode fiber	20 km (12.43 miles)
Single-Mode	(SMF)

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

•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)

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