单项选择题
A.该网元的manager设置错误B.主光光缆中断C.SPWA单板硬件故障D.SOSC单板硬件故障
A.接收A向业务的EONA/OPA/SDMR/EOPAS/SEOPAB.接收A向业务的OBA/SDMT/EOBAS/SEOBAC.接收B向业务的EONA/OPA/SDMR/EOPAS/SEOPAD.接收B向业务的OBA/SDMT/EOBAS/SEOBA
A.SNP单板硬件故障B.SPWA单板硬件故障C.主子架背板故障D.主光光缆中断