A P P E N D I X | A Fast Ethernet Topology Rules |
In the next illustration, the network topology is extended to a maximum distance of 491 meters (1610 feet). In this network, a 160 meter (524 feet) fiber link connects the 100BASE-TX repeater to the switch, and a 131 meter (429 feet) fiber link connects the 100BASE- T4 repeater to the switch. 100 meter (328 feet) Category 5 UTP wiring connects workstations and servers to the repeater stacks. The 100BASE-TX collision domain is 260 meters (852 feet), and the 100BASE-T4 collision domain is 231 meters (757 feet). When the two collision domains are interconnected through the switch, the network topology is extended to a total of 491 meters.
If you’re using a 100BASE-FX Uplink Module in a 100BASE-T4 stackable hub, fiber cable length is limited to 131 meters. If you’re using a 100BASE-FX Uplink Module in a 100BASE-TX stackable hub, fiber cable length is limited to 160 meters. If a stack combines 100BASE-TX hubs and 100BASE T4 hubs, fiber distance is limited to 131 meters.