In older half-duplex Ethernet, the length was limited so that a computer at one end could detect a "collision" (two devices talking at once) before it finished sending its data.
As electricity travels through copper, it meets resistance, causing the signal to lose energy and "fade". network cable length
For most modern copper-based Ethernet networks, the standard maximum length for a single cable run is 100 meters (approx. 328 feet) . This distance is rarely a single continuous wire. In professional installations, it is typically divided into: In older half-duplex Ethernet, the length was limited
Physics isn't always constant. Several factors can shorten your effective cable length: In older half-duplex Ethernet