Optical Wavelength Conversion Unit. STM-64 Transmitting Optical Wavelength Conversion Unit with FEC Function, страница 36

3.1.6 STM-16 Line Wavelength Conversion unit............................................................................................. 21

3.1.7 Optical STM-16/64 Combiner Unit with FEC function............................................................................ 24

3.2 Optical Multiplexing /Demultiplexing / Add /Drop Mulitplexing Unit................................................................. 27

3.2.1 32-Channel Multiplexing Unit.............................................................................................................. 27

3.2.2 32-Channel Demultiplexing Unit.......................................................................................................... 30

3.2.3 Dual-channel Add/Drop Multiplexing Unit............................................................................................. 33

3.2.4 16-Channel Multiplexing Unit.............................................................................................................. 34

3.2.5 16-Channel Demultiplexing Unit.......................................................................................................... 36

3.3 Optical Amplifier Unit.................................................................................................................................. 39

3.3.1 Optical Booster Amplifier Unit............................................................................................................. 39

3.3.2 Optical Preamplifier Unit..................................................................................................................... 42

3.3.3 Optical Line Amplifier Unit.................................................................................................................. 43

3.4 Monitoring Unit........................................................................................................................................... 45

3.4.1 Single Directional Optical Supervising Channel Unit............................................................................... 45

3.4.2 Dual Directional Optical Supervising Channel Unit................................................................................. 50

3.4.3 Optical Supervisory Channel Access Unit.............................................................................................. 50

3.5 System Control and Communication Unit........................................................................................................ 53

3.6 Overhead Processing Board........................................................................................................................... 63

3.7 Other Optional Functional Units..................................................................................................................... 68

3.7.1 Dual Directional Supervising Unit For Multichannel............................................................................... 68

3.7.2 Optical Line Protection Unit................................................................................................................. 71

3.7.3 Variable Optical Attenuator Unit........................................................................................................... 75

3.7.4 Dispersion Compensation Unit............................................................................................................. 77