2.4.1 UPS Signals
General Information
During a power failure, the UPS emits signals to indicate that the system is operating from a
limited internal source of power.
System Status
The LED indicator on the user panel, as well as UPS audio signals, indicate the system status.
Detailed information on system LEDs can be found in the System User Guide.
During a power failure the UPS only keeps the system running for a maximum of five
minutes. A rapid beeping is audible and the UPS LED flashes orange. The hospital is
responsible for installing any other, additional warning systems to inform OR staff that the
equipment is running on a limited power source.
Explanation of Signals
Signal Cause Comment
UPS emits rapid beeps
Power failure
Signals indicate that the system is operating on
a limited internal source of power.
LED flashes orange
LED steady orange Battery charging
Battery is not fully charged and cannot support
the full five minutes of standby power.
Long beep followed by
short beeps
Battery empty
Battery is completely empty. Switch off system
until mains power is restored. Turn on system
again and allow UPS to charge for at least two
hours.
SYSTEM OVERVIEW
Technical User Guide Rev. 1.1 Curve Dual Navigation Station Ver. 1.2 29
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