Orbis – Operation
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4. Operation
4.1 Connection
How to connect the control unit to AC power and turn it on-off
• Verify that the voltage rating of the power supply unit matches that of the AC mains outlet you are
to use.
Caution: If you connect the unit to the wrong voltage you may seriously damage it.
• Connect the supplied power supply unit to the DC connection and the mains. The Orbis CU
control unit has no separate on-off switch and will be in the mode in which it had been when it was
disconnected. The colour of the corona displays the mode:
Red = standby mode
White = online mode
Flashing white = booting
• If the control unit is in the standby mode, briefly press the rotary encoder on the front. The
control unit will switch to the online mode and the corona , the beyerdynamic logo and the “Orbis”
lettering will illuminate white. The current menu settings will be displayed for a few seconds as well.
• To switch the control unit to the standby mode press the rotary encoder for approx. 5 seconds.
The corona will illuminate red.
• In order to disconnect the Orbis CU control unit from the mains, pull the power supply from the AC
mains outlet.
Audio connection to the control unit
• The control unit is provided with a balanced and analogue unbalanced audio output (Audio Out).
• When required, connect the balanced XLR or unbalanced RCA phono output to the balanced or
unbalanced output of a mixer amplifier or mixing console.
• Adjust the volume via the amplifier or mixing console.
Important:
If the level is too high, distortion of the audio signal can occur. If the level is too low, noise can occur
in addition to the audio signal.
• The “Aux in” audio input is used for feeding an external channel e.g. music.
How to connect the control unit to a media control system or PC
• Via an external device such as a media control system, you can control various functions of the Orbis
conference system.
• Connect the RS 232 interface to a media control system or a PC.
• Please also refer to the RS 232 protocol.