Exfo Otdr For Sale In South Africa
What is Exfo Otdr?
The FTB-1 Platform is an open testing solution for network infrastructure construction and troubleshooting. The FTB-1’s built-in intelligence empowers frontline technicians to take field-testing efficiency to the next level.
Exfo Otdr For Sale In South Africa
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Frequently Asked Questions
What is an OTDR used for?
An Optical Time Domain Reflectometer (OTDR) is a device that tests the integrity of a fiber cable and is used for the building, certifying, maintaining, and troubleshooting fiber optic systems.
How does OTDR test work?
OTDR injects a series of optical pulses into the fiber under test. It also extracts, from the same end of the fiber,light that is scattered or reflected back from points along the fiber. The strength of the return pulses is measured and integrated as a function of time, and is plotted as a function of fiber length.
What is the difference between OTDR and OLTS?
Unlike the OLTS that measures the amount of light coming out of the far end, the OTDR measures the amount of light reflected back to the source. By computing the difference between the amount of reflection at the near and far ends, the OTDR can infer the amount of loss in the fiber.
What is the difference between a TDR and an OTDR?
Essentially an optical time domain reflectometer, OTDR is the equivalent of an electronic TDR, but for optical fibres. The OTDR operates by generating and injecting a series of optical pulses into a fibre.
What is the range of OTDR?
For example, a singlemode OTDR with a dynamic range of 35 dB has a usable dynamic range of approximately 30 dB. Assuming typical fiber attenuation of 0.20 dB/km at 1550 nm and splices every 2 km (loss of 0.1 dB per splice), a unit such as this one will be able to accurately certify distances of up to 120 km.
How is OTDR loss calculated?
Mechanical splice loss is generally calculated in a range of 0.7 to 1.5 dB per connector.
Calculating Fiber Loss and Distance Estimates.
| Fiber Loss: | 14.5 km × 35dB = -5.075 |
|---|---|
| Fusion splice Loss: | 4 × .2dB = -.8 |
| Terminating Connectors: | 2 × 1.0dB = -2.0 |
| Margin: | -5.0 |
| Total Fiber Loss: | -12.875 |
How do you read OTDR results?
How to Read Your Trace. OTDR displays will show a Y and X axis. The X axis measures distance, and the Y axis measures attenuation and reflection in dB. Before running your trace, select the appropriate fiber network length, pulse width and acquisition time.
How is OTDR measured?
The OTDR measures distance to the event and loss at an event – a connector or splice – between the two markers. To measure splice loss, move the two markers close to the splice to be measured, having each about the same distance from the center of the splice.
How is TDR test done?
A TDR works like radar. A fast rise time pulse is injected into the cable system at one end (near end). As the pulse travels down the cable, any change in the characteristic impedance (impedance discontinuities) will cause some of the incident signal to be reflected back towards the source.
How do I set OTDR parameters?
To select Manual OTDR mode, turn the rotary switch to AUTOTEST, press F3 Change Test; then select Manual. You can access these settings on the Fiber OTDR tabs in Setup. Tip: To see the settings used for an OTDR test, press F2 View Events on the OTDR Results screen, press F3 View Details; then press F1 OTDR Settings.