Oxygen 7Oxygen 7 - CONNECTING MAINS POWER
Pag. 6
Have your mains system checked by a qualified electrician.
Do not remove the earth connection from the console mains plug: The console chassis is
connected to mains earth through the power cable to ensure your safety. Audio 0V (GND) is connected to the
console chassis internally.
If problems are encountered with earth loops disconnect the cable screens at one end, usually at the
destination. Equipment such as CD players do not have a mains ground connection. In this case the shielding
can be connected on both sides of the connection - a ground loop will not occur. Try to choose a CD player with
metal housing.
Avoid induced interference: To prevent interference pickup keep audio cables away from mains power
units, cables and distribution boards, motors, lighting and computer cables and equipment, and any other
heavy duty electrical equipment. Where this cannot be avoided cross the audio and ‘dirty’ equipment cables at
right angles to minimise interference.
Use low impedance sources such as microphones and line level equipment rated at 200 ohms or less
to reduce susceptibility to interference. The console outputs are designed to operate at very low impedance to
minimise interference problems.
Use balanced connections where possible as these provide further immunity by cancelling out
interference that may be picked up on long cable runs. To connect an unbalanced source to a balanced
console input, link the cold input (XLR pin 3 or jack ring) to 0V earth (XLR pin 1 or jack sleeve) at the console.
To connect a balanced console output to an unbalanced destination, link the cold output to 0V earth at the
console.
Use good quality cables and connectors and check for correct wiring and reliable solder joints.
Allow sufficient cable loop to prevent damage through stretching.
If you are not sure ... Contact your Axel Technology agent for advice.
3.2 POSITION
The console should be located in a convenient space commensurate with the use to which the console is being
put. Ideally a cool area is preferred not in close proximity to power distribution equipment or other potential
sources of interference. Provision should be made for some flat surface surrounding the console to prevent
people using it as a table top.
3.3 INSTALLATION OF NEW (EXTRA) MODULES
When installing new (extra) modules in your Oxygen 7 it is necessary to switch off PSU before.
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