What are the maximum distances for CAT5 cabling?

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18y

12.3k

A good standard answer is 100 meters (300 feet) with patch cords,90 meters (270 feet) without patch cords. That goes pretty much for everything up to and including CAT 7/Class Fa UTP.

Eric Mann

15y

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

Speed:	1000 Mbps
Max Len:	100 Meters
Cable:	UTP, RJ-45 connectors

Fast Ethernet, 100baseT

Speed:	100 Mbps
Max Len:	100 Meters
Cable:	UTP, RJ-45 connectors

Twisted Pair Ethernet, 10baseT

Speed:	10 Mbps
Max Len:	100 Meters
Cable:	UTP, RJ-45 connectors

Thin Ethernet , 10 base 2

Speed:	10 Mbps
Max Len:	185 Meters
Cable:	RG-58 type coax, 50 ohm impedance

Thick Ethernet, 10 base 5

Speed:	10 Mbps
Max Len:	500 Meters
Cable:	RG-58 type coax, 50 ohm impedance

18y