| Fiber under test | ITU-T G.653 (DSF) | 
        
            | Optical connector | FC, SC, DIN, HSM-10/A, ST, LC | 
        
            | Wavelength (Probe light) | 1535.03 nm to 1565.08 nm | 
        
            | Wavelength accuracy | ±0.2 nm (20 to 30℃) | 
        
            | Warm-up time | 30 minutes (20 to 30℃) | 
        
            | Pulse width | 3/10/30/60/100 µs | 
        
            | Optical output power | 0 to +13 dBm, 0.5 dB Steps | 
        
            | Dynamic range (S/N=1) | >17 dB Measurement Conditions:
 
            Pulse width: 10 µs
            Average times: 216
            Distance range: 1000km
            Smoothing: On
            Ps: -57 dBm @ Pin *1
            Pase: -20 dBm/nm @ Pin *2 | 
        
            | Dead zone | 0.5 km (Pulse width: 3 µs) | 
        
            | Distance range | 100 km, 500 km to 12,000 km (in 500 km steps) | 
        
            | Measurement time | 15 minutes (Distance Range: 1000 km, Average times: 216) | 
        
            | Dimensions and mass | 320 (W) × 177 (H) × 451 (D) nm, <17 kg |