The Nokia FPMA 470139A is a Flexi Power Module designed for Nokia Flexi and AirScale base station systems. It acts as a core power supply unit that converts AC input (typically 200–240V) into regulated 48V DC power required by telecom equipment such as radio units and baseband modules.
This module consists of a chassis with AC/DC interfaces and supports multiple internal submodules, including AC/DC rectifier units (FPAA) and battery backup modules (FPBB). It can house up to four submodules, allowing flexible configurations depending on power and redundancy requirements.
Designed for carrier-grade environments, the FPMA supports hot-swappable components, alarm monitoring (such as AC failure and module faults), and scalable deployment including parallel operation for higher power output. It is a critical component in telecom infrastructure, ensuring continuous and reliable power delivery for 2G, 3G, 4G, and 5G base stations.
