a)OLT上配置的最近最遠(yuǎn)距離不合適 b)自動(dòng)發(fā)現(xiàn)時(shí)間設(shè)置過(guò)長(zhǎng) c)光纖故障或連接不規(guī)范 d)光路衰減過(guò)大或過(guò)小 e)ONU故障
a)用戶側(cè)鏈路問(wèn)題; b)數(shù)據(jù)配置問(wèn)題; c)OLT上層設(shè)備對(duì)接問(wèn)題;