Longer wires have more resistance , leading to larger voltage drops. This is especially critical for Power over Ethernet (PoE) , where a cable too long may not deliver enough power to run a camera or Wi-Fi access point. Environmental Variables: When 100m is Too Long
As electricity travels through copper, it meets resistance, causing the signal to lose energy and "fade". network cable length
(split into 5m on each end) for "patch cables" to connect your devices to the wall outlet. Longer wires have more resistance , leading to
of "permanent link" (the solid copper wire hidden behind walls). Longer wires have more resistance