OTDR Optical Time Domain Reflectometer Optical Fiber Maintenance Tool
OTDR Optical Time Domain Reflectometer Optical Fiber Maintenance Tool
Summary
OTDR is an instrument to understand the uniformity, defect, fracture, joint coupling and other properties of optical fiber through the analysis of the measuring curve. It is used to measure the attenuation of optical fiber, attenuation of connector and fault locator, and view the loss distribution along the length of optical fiber, it is an essential tool in the construction, maintenance and monitoring of optical fiber.
Warning
- When using OTDR to measure optical fiber, except 1610nm wavelength product, working light in the measured optical fiber couldn’t exist. Otherwise, the measuring result won’t be accurate, and the instrument may be damaged perpetually.
- Don't look at the optical interface directly or look over the optical interface through optical instrument.
- When the OTDR is working, do not look at the laser outlet directly;
- After using, cover the dust cap onto the optical outlet of the OTDR
- Don't directly look at the disconnected terminal of the being tested optical fiber. If possible, make the disconnected terminal of fiber optical point to a non-reflective object.
Fiber connection
Connect the fiber to the top optical interface of OTDR. It adopts FC-PC optical connector.
Notice: When using OTDR to measure optical fiber, working light in the measured optical fiber couldn’t exist. Or the instrument will be damaged.
Auto OTDR test
Auto OTDR by default, click “OTDR test” or select wavelength, Pulse width and measurement duration in the “Quick Setup” to start testing. Another parameters setting as below:
| OTDR Technical Specifications | ||||||||
| Wavelength (nm) Optional * | 1310/1550 | 1610 | ||||||
| Dynamic range(dB)2 Optional* | 28/26 | 30/28 | 32/30 | 34/34 | 28 | 30 | 32 | 34 |
| Pulse width (ns) | 5,10,20,30,50,80,160,300,500,800,1000,2000,4000,6000,10000,20000 | |||||||
| Testing range | ≤150 Km | |||||||
| Event blind zone (m)3 | ≤2m | |||||||
| Attenuation blind zone (m)3 | ≤10m | |||||||
| Linearity (dB/dB) | ±0.05 dB/ dB | |||||||
| Loss threshold (dB) | 0.05 | |||||||
| Loss resolution ratio (dB) | 0.01 | |||||||
| Minimum distance resolution | 0.05 | |||||||
| Sampling point(K) | 32-128 | |||||||
| Distance uncertainty (m) | ±(1 m + 5×10-5× distance + sampling interval) | |||||||
| Distance scope (km) | 0.5,1,2,5,10,25,50,100,200 | |||||||
| Typical real-time refreshing duration | 1s | |||||||
| File format | SOR standard format/PDF/EXCEL | |||||||
| Measurement duration | 5sec, 10sec, 15sec, 30sec, 1min, 2min, and 3min are selectable | |||||||
| Storage | FLASH (EMMC)8G + TF card | |||||||
| Interface type | SC-PC | |||||||
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Remarks: 1. The technical specification describes the ensured performance of the instrument when using typical PC model connector to measure, without considering the uncertainty caused by optical fiber refractivity. 2. Dynamic range is the data measured under the condition of the maximum pulse width and 3 minutes of average time. Dynamic range is the data measured under the condition of 200km/20000ns/3min. 3. Measuring conditions of blind zone: reflection event is within 5Km, reflection strength is 45dB. Measured by the minimum pulse width. |
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Note:“*”sign means functions are customizable!The data above is only for reference and any change of them will not be informed in advance. For more detailed technical inquiries, please feel free to contact us.
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