eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2016-12-17 4 7 275 279 10.12691/ajme-4-7-9 AJME2016479 article Patrik Šarga patrik.sarga@tuke.sk 1 Marek Andrejko 1 Technical University of Košice, Faculty of Mechanical Engineering, Letná 9, 042 00 Košice, Slovak republic The article deals with the design of a system that would allow to control the opening of the access chambers for fiber optic networks. The absence of metallic elements in the optical fiber does not allow the usage of conventional sensors working on metallic element. This led to proposition of the control system that operates on the principle of signal changes in the optical fiber caused by bending. http://pubs.sciepub.com/ajme/4/7/9/ajme-4-7-9.pdf optical fibers access chamber