Maintenance
Power Supply Maintenance
5-10
VENICE 2U | Hardware Guide | Version 1.2
Rohde & Schwarz DVS GmbH
5.3 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.
When a power supply unit failure occurs, you will be notified by the lit
alarm LED within the operation items and the sounding of an alarm
buzzer of the system. Additionally, you will be informed via e-mail noti-
fication, if your server is configured appropriately.
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:
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 extinguished.
2.
Next unplug the power cord from this power supply unit.
3.
Take the handle of the respective unit and press the unit’s latch to
the right to unlock it.
4.
Then pull the unit at its handle out of the power supply.
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.
An alarm can be caused by a number of reasons. For example, an extin-
guished LED at a power supply unit can mean a standby mode, too.
Please refer to section “Troubleshooting” on page A-2 first for further
details about what to do in case of an alarm.
When operating the R&S DVS system, it is recommended to check the
state of the alarm LED (see section “Operation Items” on page 2-8) at
regular intervals.
For an overview of a power supply unit see section “Power Supply” on
page 2-19.