為斷(duan)電(dian)報警器(qi)在(zai)市電(dian)斷(duan)電(dian)期間提供電(dian)源；
無線監(jian)控小主機(ji)(ji)，機(ji)(ji)房監(jian)控小主機(ji)(ji)，當市(shi)電斷電期間，EPS可為小主機(ji)(ji)提供(gong)電源；
將EPS串接到電(dian)源(yuan)與設備之(zhi)間，市電(dian)有電(dian)時(shi)自(zi)動(dong)給EPS充電(dian)，市電(dian)斷電(dian)時(shi)自(zi)動(dong)切(qie)換到EPS供電(dian)。
