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 The  USB OTDR is a compact, cost-effective, plug-and-play Optical Time-domain Reflectometer (OTDR).  It is designed as a green PC Peripheral for optical measurement.  With fieldwork in mind, USB OTDR is an ideal equipment for optical fiber installation, maintenance, field construction, and other on-site fault-locations analysis.   | |
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| General Specifications | 
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 Dimensions (L x W x H)   | 
 225 x 125 x 55 mm   | 
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 Weight   | 
 950 grams   | 
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 Power consumption   | 
 Operating: 3.6 Watt ; Idle: 2 Watt  | 
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 Power Supply   | 
 Lithium Ion Battery & AC /DC Adapter ( 100 ~ 240 V; 50 ~ 60 Hz)  | 
| Technical Specifications | 
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 Model  | 
 UFO-400  | 
 UFO-300  | 
 UFO-200  | 
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 Dynamic Range (dB)  | 
 ≧40 dB*  | 
 ≧35 dB  | 
 ≧25 dB  | 
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 Wavelength (optional)  | 
 1310 / 1490 / 1550 / 1625 nm +/- 20 nm  | ||
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 Fiber  | 
 9/125 µm single mode fiber  | ||
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 Optical Connector  | 
 FC/PC  | ||
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 Pulse Width  | 
 10 ns, 30 ns, 100 ns, 300 ns, 1 μs, 3 μs, 10 μs, 20 μs , Auto  | ||
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 Event Dead Zone  | 
 3 m  | ||
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 Attenuation Dead Zone  | 
 10 m  | ||
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 Sampling Resolution  | 
 0.25, 0.5, 1, 2 m  | ||
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 Max. Sampling Points  | 
 128k  | ||
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 Distance Accuracy  | 
 ±2 m + 3x10-5 distance + marker resolution  | ||
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 Loss Accuracy  | 
 ±0.05 dB/dB, or 0.1 dB (whichever greater)  | ||
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 Return Loss Accuracy  | 
 ±4 dB  | ||
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 Max. Display Range  | 
 240 km (150 mi)  | ||
| Note: Measurements are made at 23±2°C The dynamic range for UFO-400 series at 1625 nm wavelength is 38 dB.  | 
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| Portable Battery (optional) | 
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 This rechargeable battery is an ideal unit to replace the AC/DC adaptor for field users.  | 
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