当FIU与FIU之间的光缆出现故障的时候,下游站点会上报的光层告警有哪些项?()
A.MUT_LOS
B.OSC_LOS
C.R_LOS
D.OSC_RDI
A.MUT_LOS
B.OSC_LOS
C.R_LOS
D.OSC_RDI
A.无论是OLA站,还是OADM站,一个站只需要一块FIU。
B.在OptiX OSN 8800设备中,没有信号输入时,FIU板会上报告警。
C.FIU板处理监控信息
D.FIU可以完成OSC信道的接入和解出。
A.业务发送方向:SDH signals>LSX>M40V>OAU103>FIU>Line
B.业务发送方向:SDH signals>LSX>M40V>OBU101>FIU>Lin
C.OSC接收方向:Line>FIU>SC2
D.业务接收方向:Line>FIU>OAU1>M40V>LSX>SDH signals
Where are the pictures of the FIU museum stored?
A.On floppy discs.
B.On the school"s computers.
C.In the art museum.
D.On thousands of home computers.
What is needed to enjoy art in FIU museum?
A.Floppy discs and laser printers.
B.A computer and a printer.
C.Membership cards.
D.A computer connected to the museum via telephone line.
A.D40的MON口是从输入侧(IN口)提取监控光信号
B.FIU板的MON从发送方向(OUT口)提取监控光信号
C.OAU的OUT口和MON口的光功率相差20dB
D.OBU的MON是从输入侧(IN口)提取监控光信号