ROF1375411/2 Ericsson Ericsson RBS Radio Remote Unit

The Ericsson ROF1375411/2 is an Active Antenna Unit (AAU2), an integrated radio unit that combines antenna elements with active electronics in a single enclosure. This design consolidates the traditional separate antenna and remote radio head into one compact unit, reducing feeder losses and simplifying tower-top installations.

The AAU2 is designed for deployment within Ericsson Radio Base Station (RBS) systems, supporting mobile network infrastructure for 4G LTE and potentially multi-standard radio access networks. These units are typically mounted on towers, rooftops or poles to provide cellular coverage and capacity in macro cell deployments.

As mobile network technology continues to evolve, earlier generation AAU variants remain relevant for network maintenance, expansion of existing deployments, and operators maintaining legacy infrastructure alongside newer equipment.

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