Power Supply Maintenance - R&S SpycerBox Cell Hardware Manual

5.4 Power Supply Maintenance

The redundant power supply provides the system with power. It is a re-
liable and enduring part of the system because it consists of two inde-
pendent power supply units. Even if one fails, the other will still offer
enough power to keep the system working.
Second power supply failure
The system can be operated with one power supply unit out of or-
der. However, if another one fails, a continued operation of the sys-
tem cannot be guaranteed.
It is recommended to change a failed power supply unit im-
mediately.
When a power supply unit failure occurs, you will be notified by a lit
alarm LED on the respective power supply and the sounding of an
alarm buzzer of the system. The alarm can be switched mute with the
mute button at the front of the system (see section "Overview of the
Front" on page 2-3). Furthermore, you might see the warning/alarm
icon in the display on the faceplate that informs you about a hardware
failure (see section "Overview of the Front" on page 2-3).
An alarm can be caused by a number of reasons. Please refer to section
"Troubleshooting" on page A-2 first for further details about what to do
in case of an alarm.
Each power supply unit in the R&S DVS system is hot-swappable, so
you can safely replace it with the system running. Follow these steps to
replace a power supply unit:
For an overview of a power supply unit see section "Power Supply" on
page 2-9.
1. Take a look at the power supply at the rear of the system and
examine the LEDs of the units. The LED of the malfunctioning
power supply unit should be either extinguished or lit in red.
2. Next unplug the power cord from this power supply unit.
Take the handle of the respective unit and press the unit's latch to
3.
the right to unlock it.
SpycerBox Cell | Hardware Guide | Version 1.0
Rohde & Schwarz DVS GmbH
Maintenance
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Power Supply Maintenance

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