1)FDME Frequency Division Multiplex Equipment,频率分开多路复用设备，频分多路复用设备2)frequency division multiplex equipment,频分多路复用设备3)FM / FDM Frequency Modulation / Frequency Division Multiplex,调频/频率分开多路复用4)frequency divisionmultiplexing,FDM,频率分多路复用5)TDMD Time Division Multiplex Device,时分多路复用设备6)OFDM Optical Frequency Division Multiplexing,光学频率分开多路复用