UX410 –Module Rack Owners Manual
Page 3
RTZ Professional Audio
3.3 DC Power Supply Connector Wiring
The DC power cable to the PS410 requires a six pin XLR connector and
cable. Separate power and analog grounds are maintained all the way
through to unit and back to the power supply for maximum ground signal
noise suppression.
Noisy components like relays and LED Vu meters typically reside on the
“power ground” while critical audio circuits reside on the “analog ground”.
These grounds eventually meet at a central “star ground” within the
PS410 power supply to provide a central common ground while keeping
the analog and power grounds separate throughout the rack.
Table 3 –6 Pin XLR DC Connector Wiring
4 Installation and Connections
The PS410 is designed for standard 1U 19” rack mounting. Ideally, the
unit should be mounted where cool air flows around all sides of the unit.
Do not obstruct the flow of air on the sides or rear of the PS410; air must
be able to flow around the sides and rear of the unit at all times. Do not
place the unit near strong magnetic fields and noise sources such as
power amplifiers, power supplies, transformers, motors, florescent
lighting, computers, etc. Mount the power supply away from any audio
module racks or other audio gear to avoid magnetic field radiation from
the PS410’s large internal supply transformer.
The power supply MUST be properly grounded at the AC outlet
connector. Never bypass the third ground prong on the power plug as
this creates a serious hazard and potential electrical shock. The chassis
ground stud on the rear of the unit may be used to ground the chassis to
an electrical earth ground also. Consult a certified electrician if you are
unsure of proper grounding or any AC mains connections to the unit.
The internal fan is thermostatically controlled and the speed of the fan
increases as the temperature of the unit rises. The fan will run at lower
speeds with less fan noise under light load or temperature conditions.
However, the fun will run at higher speeds if the unit is under heavy load
or placed in a hot environment. The supply should always be placed in
as cool an area as possible with plenty of air flow available to avoid heat
problems.
