The present invention relates to an optical film comprising an aromatic based unit including 5 to 10,000 of units represented by Formula 6; a acrylate-based unit which is a copolymer of a acrylate derivative and maleimide; and a styrene-based unit which is a copolymer of a styrene derivative and maleimide, and a polarizing plate. In order to prevent damage during the advancement of the optical fiber cable the engine of the installation device has been supplied with a friction safety clutch exerting pressure on a moving coil. This element is positively attached at the submount and receives the end of the optical waveguide. The system automatically generates application code for the service class, which enables the service class to be used by an internal endpoint of the ERP system. The complex rhythm disorder can be treated by application of energy to modify the source of the rhythm disorder. The barrels and the center conductor may be of either gender as required to engage the jack pair.