The system provides the intelligent power adjustment (IPA) function. When there is a fiber break on the line, the downstream optical amplifier is shut down to prevent exposed optical fibers hurting human body.
In the DWDM system, optical fiber break, equipment failure or optical connector removal may lead to the loss of optical signals. To prevent exposed optical fibers hurting human body, especially eyes, and to avoid surge of the optical amplifier, the system provides the IPA functions. Where the loss of optical power signals happens on one or more optical trunk sections on the main optical channel and the optical supervisory channels, the system can detect the loss of optical signals on the link and instantly shut down the upstream optical amplifier.