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Reply To: -48 V DC in Telecom Equipment


It is -48 V D.C cause of the commercial battery stack available. Commercial battery stack is available in -12 V, -24 V or – 48 V. For info, actually any telecom equipment or for that matter any sophosticated equipment runs on a range of supply voltages by using their own inbuilt SMPS and it is very difficult to maintain a constant voltage by the power source.