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Autonomous system for identification of optical connectors DOI:10.15199/48.2017.08.18

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Optical networks have revolutionized the telecommunications market in the past 30 years. In the most popular standards: Gigabit Passive Optical Network (GPON) and Gigabit Ethernet Passive Optical Network (GEPON) used in Fiber To The x networks (FTTx), part of the distribution network is passive. This means that there is no need to provide power to conducted fiber and to the passive switching points. At the same time, the maintaining and monitoring this expanding passive infrastructure is increasingly important. Identification of fiber optic connectors and monitoring the changes in FTTx network topology is required by providers of IT services. In papers [1-3] solutions using Radio Frequency Identification (RFID) tags are presented. Simple marking systems of cables and connectors using RFID technology are already commercially available. In all these solutions, the identification system requires a conventional power supply or the presence of operators of telecommunication infrastructure. Because, as previously mentioned, part of the distribution network is passive, the use of conventional power source (AC/DC) is not justified. The alternative power supply - energy harvesting - should be therefore considered during the development process of maintaining and monitoring systems. The latest generation of microprocessor systems and supply circuits with AC/DC, DC/DC converters are high-performance and energyefficient and need to work less than 1 mW [4,5]. Also the presence of operators is not desired as it increases the cost and does not provide a full automation of the connector identification process. Therefore during the design process of such a system the autonomous and low power communication system must be taken into account. In our previous paper [16] we presented a demonstrator of a fully autonomous RFID monitoring system. In presented system the time needed to perform a single cycle of identification process equals 218 s.[...]

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