|  |   |   |   |  | 
|---|
                                |  | MaxLink 1.25G SFP optical module, SM, 1310nm, 3km, 2x LC connector, DDM | MaxLink 1.25G SFP optical module, SM, 1310nm, 20km, 2x LC connector, DDM | MaxLink 1.25G SFP optical module, SM, 1310nm, 40km, 2x LC konektor, DDM |  | 
|---|
                                | PN | ML-S31D-3 | ML-S31D-20 | ML-S31D-40 |  | 
|---|
                                
                                        
                                            | Compatibility | Universal | Universal | Universal |  | 
                                    
                                        
                                            | Format | SFP | SFP | SFP |  | 
                                    
                                        
                                            | For cable type | Single Mode | Single Mode | Single Mode |  | 
                                    
                                        
                                            | Optical Connectors | (2) LC | (2) LC | (2) LC |  | 
                                    
                                        
                                            | Transmission speed | 1.25 / 1.25 Gbps | 1.25 / 1.25 Gbps | 1.25 / 1.25 Gbps |  | 
                                    
                                        
                                            | Wavelength - Tx/Rx [nm] | 1310 | 1310 | 1310 |  | 
                                    
                                        
                                            | Distance [km] | 3 | 20 | 40 |  | 
                                    
                                        
                                            | Transfer type | 2-fiber | 2-fiber | 2-fiber |  | 
                                    
                                        
                                            | DDMI - diagnostics | Yes | Yes | Yes |  | 
                                    
                                        
                                            | Polishing type | UPC | UPC | UPC |  | 
                                    
                                        
                                            | Tx power [dBm] | -9 up to -3 | -9 up to -3 | -2 up to 3 |  | 
                                    
                                        
                                            | Receiver sensitivity [dBm] | -24 | -24 | -24 |  | 
                                    
                                        
                                            | Operating temperature [°C] | 0 up to 70 | 0 up to 70 | 0 up to 70 |  |