Which networking technology allows Ethernet data signals to be transmitted over the existing electrical wiring in a building, eliminating the need to install new network cables?
DOCSIS cable internet
Power over Ethernet (PoE)
Powerline networking (Ethernet over Powerline)
MoCA (Multimedia over Coax Alliance)
Powerline networking-also called Ethernet over Powerline or Power-line Communication-uses HomePlug-compatible adapters that plug into standard electrical outlets. The adapters modulate Ethernet frames onto higher-frequency carriers that share the AC wiring without interfering with normal 50/60 Hz power. This is useful when running new Category 5e/6 cabling is impractical and Wi-Fi coverage is weak. Power over Ethernet (PoE) is different: PoE delivers power over twisted-pair Ethernet cables; it does not send data over power circuits. MoCA uses coaxial cable, and DOCSIS refers to cable-modem service over coax.
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