OnAir 500 Digital Mixing Console
Operating Elements 3-1
Date printed:
30.07.04
3
OPERATING ELEMENTS
3.1
Power Switch
The mains power switch is located on the rear side of the console, next to the
power inlet.
In case of DC operation of the console using an external power supply, a
battery or an UPS, the power switch is without function.
In such a case, an
external power switch has to be foreseen by the installer.
The mains inlet and the DC supply inlet can be used at the same time for
quasi-redundant operation.
In case of quasi-redundant operation, the
POWER ALARM
LED on the meter
bridge illuminates and warns the operator as soon as either one, the AC or
the DC supply fails while the other one keeps up running the console. In
addition, a power alarm signal is active on one of the pins of the
24V DC
connector.
For pin assignment of the
24V DC
connector refer to chapter 12.2.5.
2
1
3
9
8
10
4
7
1
3
2
2
1
3
2
1
Power Switch
(active for Mains Supply only)
IEC Mains Inlet
DC Supply Inlet
Earthing Lug
Содержание OnAir 500 Modulo
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