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| Amplifier Type | Pre-Amplifier | Work Wavelength Range | 1528nm~1561nm | 
| Maximum Gain | 25dB | Gain Flatness | <1.5dB | 
| Minimum Input Optical Power | -32 dBm | Maximum Output Optical Power | +16dBm | 
| Saturated Optical Power | -9dBm | Noise Factor | <5dB | 
| Optical Interface | LC/UPC | Typical Power Consumption | 15W | 
| Chassis Type | 1U, 2U, 5U | Occupied Slot Number | Occupy 1 Slot | 
| Working Temperature Range | -10 ℃~+55 ℃ (Typical) | Storage Temperature Range | -40℃~+85℃ | 

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 2.5G OTU (OEO) Card Transponder 2R Transparently Transmit 4 Channels' Service at Any Rate in 42M~2.67Gbps
                                                                                    
                        
                        
                        
                                                            2.5G OTU (OEO) Card Transponder 2R Transparently Transmit 4 Channels' Service at Any Rate in 42M~2.67Gbps
                                                    
                        
                     DC-48V 1U Rack Unit for 1U Chassis FM-1U19-4Card
                                                                                    
                        
                        
                        
                                                            DC-48V 1U Rack Unit for 1U Chassis FM-1U19-4Card
                                                    
                        
                     AC 220V Power Unit for 1U Chassis FM-1U19-4Card
                                                                                    
                        
                        
                        
                                                            AC 220V Power Unit for 1U Chassis FM-1U19-4Card
                                                    
                        
                     DC-48V Power Unit for 2U Chassis FM-2U19-8Card
                                                                                    
                        
                        
                        
                                                            DC-48V Power Unit for 2U Chassis FM-2U19-8Card
                                                    
                        
                     EDFA 40/80 Channels, C-Band Optical Amplifier, Maximal Output Power +20dBm, Gain 25dB Saturated Optical Power -5dBm Buil
                                                                                    
                        
                        
                        
                                                            EDFA 40/80 Channels, C-Band Optical Amplifier, Maximal Output Power +20dBm, Gain 25dB Saturated Optical Power -5dBm Buil
                                                    
                        
                     EDFA 40/80 Channels C-Band Optical Amplifier Maximal Output Power +20dBm Gain 17dB Saturated Optical Power +3dBm
                                                                                    
                        
                        
                        
                                                            EDFA 40/80 Channels C-Band Optical Amplifier Maximal Output Power +20dBm Gain 17dB Saturated Optical Power +3dBm
                                                    
                        
                     Optical Line Protection (OLP) Unit 1+1 Line Protection, Double Ends Transmission  Selected Reception Single End Switchin
                                                                                    
                        
                        
                        
                                                            Optical Line Protection (OLP) Unit 1+1 Line Protection, Double Ends Transmission  Selected Reception Single End Switchin
                                                    
                        
                     20km DCF-Based Passive Dispersion Compensation Module, 3.5dB Low Loss, LC/UPC
                                                                                    
                        
                        
                        
                                                            20km DCF-Based Passive Dispersion Compensation Module, 3.5dB Low Loss, LC/UPC
                                                    
                        
                     60km DCF-based Passive Dispersion Compensation Module, 1U 19" Rack Mount, LC/UPC
                                                                                    
                        
                        
                        
                                                            60km DCF-based Passive Dispersion Compensation Module, 1U 19" Rack Mount, LC/UPC
                                                    
                        
                     80km DCF-based Passive Dispersion Compensation Module, 1U 19" Rack Mount, LC/UPC
                                                                                    
                        
                        
                        
                                                            80km DCF-based Passive Dispersion Compensation Module, 1U 19" Rack Mount, LC/UPC