ethernet maximum cable length - network max lengths

Maximum cable lengh for ethernet depends on what kind of ethernet you are talking about!  Here are some details on the most popular kinds of ethernet.  (UTP = unshielded twisted pair)

Gigabit Ethernet (over copper), 1000baseT

Ethernet to Fiber media converters are starting to come down in price - they can be found for under $150.  When 100Meters is not enough distance, an Ethernet to fiber media converter can be placed on each end making the maximum distance something like 40Km(See the Example here ).  Another use for fiber is electrical insulation.  Some people like to run cables underground between homes.  If you run CAT5 cable, the homes have different 'ground potentials' and you will burn out network card durring any electrical storm.  The solution is fiber!  Run fiber betweeen the homes or run a pair of fiber converters on one end of the cable with a short fiber run.  This will electrically separate the two homes.

Any other questions about maximum cable length for ethernet or network toplogies can be directed to the forums 

ethernet maximum cable length - network max lengths