| Number of channels | 
            All 18 CWDM channels, compliant to ITU-T G.694.2 | 
        
        
            | Channel pass band | 
            +/- 6.5 nm, compliant to ITU-T G.695 | 
        
        
            | Wavelength accuracy | 
            +/- 1nm | 
        
        
            | Power range per channel | 
            +10dBm to -40dBm | 
        
        
            | Power accuracy | 
            +/- 0.5dB *1 | 
        
        
            | Maximum total safe power | 
            +20 dBm | 
        
        
            | Maximum channel safe power | 
            +13 dBm | 
        
        
            | Power repeatability | 
            +/- 0.2 dB | 
        
        
            | Channel imbalance (adjacent channels) | 
            15 dB (typical) *2 | 
        
        
            | Channel imbalance (non adjacent channels) | 
            20 dB (typical) | 
        
        
            | Polarization Dependant Loss | 
            +/- 0.3 dB | 
        
        
            | Power supply | 
            9 VDC, 100 to 240 VAC | 
        
        
            | Battery | 
            NiMH, Operating Time: 4 hours(typical) *3, Recharge Time: <3 hours *4 | 
        
        
            | Environmental conditions | 
            Operation: 0° to +50ºC *5, <80%(non-condensing) *6, Storage: -20° to +60ºC | 
        
        
            | Vibration: MIL-T-28800E Class 3, Dust and Drip proof: IP51 | 
        
        
            | EMC | 
            EN61326 |