A closure (100/200) protects telecommunications circuitry from water and dust. The closure (100/200) includes a base (128) that has a sidewall (134) that extends upwardly from a bottom (118), and the sidewall (134) has at least one cable port (122/222). The closure (100/200) also includes a cover (126) that attaches to the base (128) to close an interior (130) of the closure (100/200). Further, a galvanic anode (124) is removably secured to the sidewall (134) of the base (128) of the closure (100/200) and electronic circuitry (132) is disposed within the interior (130) of the closure (100/200). The electronic circuitry (132) is active electronic circuitry.