FTTA IP67 Armored Fiber Cables – Core Component for 4G/5G Cellular Network Upgrades

During network operation, the BBU at the tower bottom transmits digital optical signals to the top RRH through FTTA fiber assemblies. The RRH undertakes the core signal conversion function, converting digital signals into analog RF signals. Different from the full-fiber transmission of the main link, the short-distance connection between the RRH and the terminal antenna still adopts traditional coaxial cables, forming a mature and efficient hybrid transmission architecture of “long-distance fiber + short-distance coaxial”.