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Reply To: why -48v

#51576
TKT
Guest

its just simple

negative because – it reduces the chances of Noise ,, as noise tends to add more towards +ve signal

48 because – its safe ( you will not get a shock ) as in higher DC voltages , one may stick to the conductor ( In higher AC however you may be thrown off )…. and also 48 as 12 Volts was once an standard battery – 12*4=48