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  • Why Do Telecom Base Stations Use –48V DC Power?

    Why Do Telecom Base Stations Use –48V DC Power?

    Feb , 06 2026
    In modern communication networks—from 4G and 5G to future 6G—mobile base stations form the backbone of wireless connectivity. Behind this infrastructure lies a seemingly minor yet critical design choice: almost all telecom base stations worldwide operate on –48V DC power.   For many outside the industry, this raises obvious questions: Why –48V instead of +48V? Why not ...
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