Manual
Table Of Contents
- Certification Information
- 1 Introducing the AXS-100 Series OTDR
- 2 Safety Information
- 3 Getting Started with Your OTDR
- 4 Customizing Your OTDR
- 5 Setting Up Your OTDR
- 6 Testing Fibers
- 7 Managing Test Results
- 8 Using Your OTDR as a Light Source
- 9 Measuring Power or Loss
- 10 Identifying Fiber Faults Visually
- 11 Inspecting Fibers with the FIP
- 12 Testing Network Connections
- 13 Maintenance
- 14 Troubleshooting
- 15 Warranty
- A Technical Specifications
- B Description of Event Types
- Index
Description of Event Types
134 AXS-100 Series
Reflective Event (Possible Echo)
Reflective Event (Possible Echo)
This symbol indicates a reflective event that can be a real reflection or an
echo produced by another stronger reflection located closer to the source.
³ In the example above, the launched pulse hits the third connector, is
reflected back to the OTDR and reflected again into the fiber. It then
reaches the third connector a second time and is reflected once more
to the OTDR.
The application would therefore detect a reflective event located at
twice the distance of the third connector. Since this event is almost null
(no loss), and since its distance is a multiple of the third connector
distance, the application would interpret it as a possible echo.
³ A reflectance value is specified for reflective events (possible echo).
Reflected power
(dB)
Distance
(km)
OTDR connector
Second connector
Third connector
Reflective event (possible echo)