PSE(redirected from PSE (disambiguation))
Also found in: Medical.
PSE(Power Sourcing Equipment) A power over Ethernet (PoE) device that is a source of power, such as a PoE Ethernet switch. Contrast with "powered device" (PD), which uses the power, such as a network camera or IP phone. See PoE.
Abbr. for “planed and square-edged.”