SMC Networks 100 P, 2-7, 100 Mbps Fast Ethernet Collision Domain

N ETWORK P LANNING
2-7
100 Mbps Fast Ethernet Collision Domain
Maximum 100BASE-FX Fiber Optic Cable Distance
SMC 3-2 Rule for Class II Repeaters
SMC 2-1 Rule for Class I Repeaters
Maximum Network Diameter Using Repeaters
100BASE-FX 50/125 or 62.5/125 micron core multimode fiber (MMF)
Full duplex 2 km (1.24 miles) SC or ST
100BASE-FX 9/125 9 micron core single-mode fiber (SMF)
Full duplex 10 km (6.21 miles) SC or ST
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)
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)
Repeater Type
and Number
Twisted Pair
100BASE-TX
1 Class I 200 m (656 ft.)
1 Class II 200 m (656 ft.)
2 Class II 205 m (672.4 ft.)