The ROT550 is  important component of an All-optical Network Wireless Intercom System. This antenna connects the signals delivered by Fiber Optic Network Switch and Fiber Optic Network Server to realize communication. This antenna has the advantages of attractive appearance,easy installation; high reception sensitivity, small insertion loss, and other good performance.Product performance is stable and reliable. This  antenna is  suitable for public security, government, public utilities, large parks, airports, ports, harbors, commercial complexes, residential, community property, hotels, business offices and so on.