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電話光端機(jī)的電源線連接:設(shè)備標(biāo)準(zhǔn)機(jī)型電源配置為DC-48V或AC~220V,在設(shè)備接入電源之前,請(qǐng)先測(cè)量接入電源的電壓值及電源功率是否在設(shè)備的要求范圍之內(nèi):-48V電源: -48V±10%;AC220V電源:標(biāo)準(zhǔn)AC220V±20%,50Hz;在給設(shè)備引入電源之前請(qǐng)檢查設(shè)備的電源開關(guān)是否置于OFF,…
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