The Oxygen 5 Power Supply (PWS) consists of a power transformer, selectable for 115 VAC or 230 VAC operation,
rectifiers, filter capacitors and voltage regulators on a circuit board.
The power supply is protected by a replaceable AC mains fuse located in the power entry socket plus internal fuses on
the transformer’s secondary outputs and selfprotected current-limiting regulators.
The power supply has three output voltages:
- +/-15 volts for the audio circuitry
- +48 volts phantom for condenser microphones.
Three LEDs on the front of the unit indicate whether the power to the three voltage rails is being supplied correctly. if one
of the LED’s fails, then there is a problem with the PWS unit or the console. Ref to par. 17.7
The power supply should be installed where there is adequate ventilation for heat to circulate from the rear and the side
of the unit. In the event of PWS rack-mounting, other equipment in the rack which is known to produce a significant
amount of heat should be mounted not closed to the unit (i.e. some space should be provided between these and the
Oxygen 5 Power Supply).
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