Cable Schemes
Original instructions
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Overview
The following information provides guidelines on proper cabling schemes for your Ethernet configuration.
Twisted Pair Length
In a standard Ethernet cabling scheme network nodes such as the Quantum Ethernet module connect via a cable to a port on a central hub or switch. The maximum cable length between nodes depends on whether they are connected through hubs or switches, as the following table describes:
Device Type
Max. Cable Length from Node to Hub/Switch
Max. Number of Hubs/Switches Between Any Two Nodes
Max. Distance Between Network Nodes
hub
10 BASE-T: 100 m
3
500 m
switch
10/100 BASE-T: 100 m
100 BASE-FX: 2 km
unlimited
unlimited
Cabling with Conventional Hubs
The figures and tables that follow show the maximum number of hubs and the maximum cable length between nodes allowed if using hubs.
10BASE-T Distances with Hubs
The 10 BASE-T cabling allows for 3 hubs with a link maximum distance of 100 m (325 ft) and a total network diameter of 500 m (1625 ft).
10/100BASE-T Cable Distances with Switches
The 10/100BASE-T cabling has a link maximum distance of 100 m. The is no limit on the number of switches.
100BASE-FX
The maximum cable segment length for 100BASE-FX multimode cable (1300 nm) is 2 km. The number of switches you can implement over that distance is unlimited.