Dear user!
The OptiX OSN 3500 supports only –48 V DC power supply and does not support 220V AC power supply.
If the standard voltage of the input power is -48 V, the power voltage ranges from -38.4 V to -57.6 V.
If the standard voltage of the input power is -60 V, the power voltage ranges from -48 V to -72 V
Thank you!