The following illustration is an example of how to connect four Rack Mountable EtherFast 10/100 Auto-Sensing hubs together using fiber optic cabling. Notice that the hubs at the top and the bottom are equipped with 100BaseFX 1-Port Distance Extender modules, while the two hubs in the middle have 100BaseFX 2- Port Tranceiver Modules. The distance extender modules allow data to be sent up to 208 meters (672 feet). The distance between the two hubs with tranceiver mod- ules is limited to a maximum of 16 meters (50 feet). For a full explanation of fiber optic cabling distance rules, see the chart on page 15. Note: In the illustration, no other 100Mbps hubs can be cascaded to hubs B and C with RJ-45 cabling. Another 100Mbps hub can be connected to either hub A or hub D with RJ-45 cabling with no problems.
A
Maximum distance of
208 meters
B
Maximum distance
of 16 meters
C
D
Maximum distance of
208 meters
