User manual

Power supply unit
The power supply unit can be connected to all the usual mains power
supply systems. It adjusts automatically to the voltage supplied.
The power supply unit may be replaced by authorized
trained personnel only.
The power supply receptacle and the power socket for the monitor are on
the back of the BEETLE /20, and the power switch is on the front.
Power supply unit and accumulator battery
The battery can bridge power failures lasting up to 4 minutes. If the power
supply is interrupted for more than 20 ms, the system sends a message to
the application, which switches on the battery.
Peripherals that have their own power supply are not supplied by the
battery.
GB - 71