Tandberg Data Storage Library T128, User Manual

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8 Description
Figure 5 Tandberg StorageLibrary T128 Back Panel Components
Rear Power Switches
Rear power switches are located on each power supply. Turning off the rear power switch on a power supply
removes all power from the library. The rear power switches should be used in all emergency and service
situations.
Power System
The library supports single and redundant power configurations. The single power configuration has a single
AC line input and single DC power supply. The redundant configuration has dual AC line input and dual DC
power supplies.
If you have redundant power supplies, you can hot swap a power supply (power to the library remains on
while you exchange the hardware), and you can hot add power supplies to other modules (power to the
library remains on while you are adding the hardware).
WARNING
TURN OFF THE REAR POWER SWITCH WHENEVER YOU ARE
SERVICING THE LIBRARY. IN THE EVENT OF DANGER TO
PERSONNEL OR PROPERTY, IMMEDIATELY TURN OFF THE REAR
POWER SWITCH AND REMOVE ALL POWER CORDS.
CAUTION
Except in emergencies, use the shutdown procedure before
switching off the rear power switch. See
Shutting Down or Restarting
the Library on page 67 for instructions on how to shut down the
library.