IFAC PapersOnLine 51-30 (2018) 771–773 ScienceDirect ScienceDirect Available online at www.sciencedirect.com 2405-8963 © 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. Peer review under responsibility of International Federation of Automatic Control. 10.1016/j.ifacol.2018.11.198 © 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. I. INTRODUCTION One of the advantages of optical fibrous networks (OFN) its broadband spectrum, and currently, transmission, processing, selection is carried out with Tbit/s using OFN spectrum compression method, using this indicator of optical cables. Transmission of data transmitted during the transmission, reception, switching, selection of large volume data, to full and durable users, stability of performance indicators (Gasanov, M.G., 2010), switching time to alternative channels, change of photons (photon theft) switching or blocking one, ensuring information security and so on. is one of the most important issues. While the use of cryptographic techniques to control the number of photons, including the use of encryption keys to prevent unauthorized interventions, is currently one of the topical issues (Hasanov, M.H., 2011) in creating a new theoretical and practical approach. In this regard, a new multifunctional, multi-channel optical switches (OS) were developed using linear microcontroller for full monitoring of optical signals, regardless of topology of optical networks (Hasanov, M.H., at al., 2018). In order to fully control optical signals in OFN, including detection of an open and a place of breakage of fiber optic cables and unauthorized interventions OFN, we will look at the work of an automatic adaptive monitoring device. II. AUTOMATIC ADAPTIVE MONITORING DEVICE FOR OFN The monitoring system provides the following: - carries out collection of statistical analysis of optical fiber network test results and its static analysis; - static analysis predetermines and predicts them as long as they cause serious flaws in the network; - explores the existing capabilities for planning and preventive maintenance of the optical cable used in the network without waiting for serious accident and injury to the cable system; - provides a high level of network security. Thus, there is no possibility of additional loss of optical channel when there is any connection without fiber permissibility. It is also discovered by the system in real time and is recorded on the central server; - provides a graphical description of the network status information and so on. Fig. 1. OFN-monitoring device. Keywords: optical fiber networks, monitoring devices, optical switch, semi-proprietary mirror, translucent mirror. *Land of Fire University, Baku, AZ 1072, Azerbaijan (Tel: +994 12 538 87 66; e-mail: bahar.aliyeva08@gmail.com). **Department of “Multi channel telecommunication systems” of Azerbaijan Technical University, AZ 1073, Baku, Azerbaijan (Tel: + 994 50 211 22 83; e-mail: mhasanovnew@gmail.com). *** Department of “Multi channel telecommunication systems” of Azerbaijan Technical University, AZ 1073, Baku, Azerbaijan (Tel: +994 12 538 87 66; e-mail: shelale.4666.5@gmail.com). _________________________________________________________________________ Abstract: The paper proposes control systems for monitoring fiber-optic networks and analyzes the principles of the remote monitoring of fiber-optic networks. The most important function of the proposed monitoring system is that it constantly analyzes the results of testing fiber-optic networks and detects and predicts problems with an optical fiber with different wavelengths and when a problem is detected and unauthorized connections to optical channels are automatically switched to another channel. For this purpose, the functionality of the monitoring device has been expanded and the algorithm of operation for optical networks with different wavelengths, which will be used in trunk, passive optical networks, is described. Thus, the system is under constant automatic control and the accuracy of the system is based on the results of comparing the current reflector parameters with the initial values. Bahar V.Aliyeva*, Mehman H.Hasanov**, Shalala F.Qodjaeva*** Monitoring of Optical Fibrous Networks