4 CABLING
The LinkBuilder FMS 100-TX Hub supports Fast Ethernet cabling and topology requirements, as detailed in the IEEE 802.3 specification. Fast Ethernet preserves the 100-meter maximum UTP cable length from the hub to the desktop that is a requirement for 10 Mbps Ethernet. Two 100 Mbps topology rules are different from those for 10 Mbps Ethernet:
■The maximum number of repeaters in a collision domain is two. (For additional information, refer to the sections “Considerations for Multisegmented Networks” and “Classification of Repeaters” in Chapter 3.)
The LinkBuilder FMS 100-TX Hub only supports one repeater in a collision domain.
■In a single collision domain, the maximum network diameter is 200 meters with Category 5 UTP cabling only, or 260.8 meters with one fiber-optic cabling link. Refer to Table 4-1 for a summary of maximum cable lengths.
Table 4-1 Maximum Network Collision Domain Diameters
Model | Maximum Cable Length | Media |
| | |
Hub to connected | 100 meters | Straight-through UTP cable |
workstations | | |
One Class I repeater | 200 meters | Straight-through UTP cable |
| 260.8 meters | Combined UTP and fiber cable |
| | |
