OTDR Cards are used for DCI Box
OTDR optical time domain reflector, which can measure fiber length, optical fiber transmission attenuation, splice attenuation and fault location, etc. It can be applied to optical fiber cable monitoring, fiber optic cable construction and maintenance
During OTDR test, the pulse generated by the pulse generator drives the LD to generate light pulses, which are injected into the optical fibre to be tested through the directional coupler. The light pulse into the optical fibre, due to impurities within the fibre, bubbles and other scattering occurs, some of which are scattered backward known as the backward scattered light (BACK SCATTERINGLIGHT), together with the FRESENL reflected light generated by the uneven fibre end face, together with the reflection back to the coupler, into the photodiode, into an electrical pulse. This reflected light is extremely weak, so it is repeatedly transmitted, collected, iterated, amplified, averaged and processed, and then provide the data to the network management platform. It is characterised by high dynamic range and high level of resolution.
Datasheet OTDR Function Support for fiber link distance, attenuation, total loss and other parameters of the test Slot number 1 slot Ports Provides 8 test interfaces (selected by optical switch), which can be connected to 8-core optical fiber link testing Operating wavelength 1625 nm Dynamic range ≥30 dB Pulse width range 0.02 ~ 20 us Maximum detection range ≥80 km Loss test accuracy ±0.5 dB Range measurement accuracy <20 m Event blind <10 m Attenuation dead zone <20 m
Application : It is suitable for rapid diagnosis and centralized management of optical fiber faults. Used for DCI Box.
