The  fiber  brag  grating  reflector( FBG  Reflector)  is  a  low-cost  specific  band  reflector mounted on the optical network unit (ONU) side. It can reflect light pulses ( 1650 +/- 5 nm) from the OTDR on the fiber line terminal (OLT) side nearly 100%, while the working bands of the passive optical network (PON) are transmitted normally. The OTDR can determine whether the  fiber  line  is  normal  by  detecting  the  signal  reflected  by  the  fiber  grating reflector. When the reflected signal is lower than the normal value, the line loss is too large; when the reflection value is 0, the optical fiber line is broken 。Therefore, we can maintain the fiber line in time by the real-time monitoring of the fiber line.

Main Characteristics A maximum dynamic range of 50dB, and 256k data sampling points. Online test of PON network. Integrated single-mode and multi-mode test. Automatic monitoring of optical communication signals. File formats of Bell core GR196 and SR-4731 supported.

High stability and reliability Remote real-time detection Low insertion loss Easy connection for adapter structure Compliant with Telcordia GR-326-CORE, Telcordia GR-1221-CORE Compliant with RoHS

Low insertion loss Wide wavelength range Easy disassemble,self-replacement,winding fiber

90 dB dynamic range Maximum support provided for 45 calibration wavelengths Threshold setting with pass/fail alarm function Automatic wavelength identification function Real-time testing of PMAX/PMIN Detection function of frequency light Real-time data reading function is provided to facilitate the application of embedded system Support visual fault locator function Storing 1,000 pieces of data