Users Guide

Note: If your library has -04 level redundant power supplies (see label on top of power supply), it is
normal for the one in “Standby” mode to turn its “Green” LED off. You can test this power supply by
pulling the power connector from the other “Active” power supply. The power supply that was in
“Standby” mode will now become “Active”, and its “Green” LED should light. If it doesn’t, replace it
(refer to “Replacing a Power Supply” on page 186).
If your library has -05 level redundant power supplies, the "Green" LED will be ON on both power
supplies. If both "Green" LEDs are not ON, replace the failed power supply (refer to “Replacing a
Power Supply” on page 186).
Web User Interface Help Pages
Each screen on the Web User Interface has an associated Help page. To access a Help page, click on Help
in the upper right corner of the screen. A new web page will open. Using the left navigation pane, select
the desired Help page. To close the Help page, click the red X in the upper right corner of the screen.
Logging out of the Web User Interface
To log out of the Web User Interface, click Logout in the upper right corner of the current screen.
Important: If you click the X in the upper right corner of your internet browser window, you will not log
out of the Web User Interface.
Figure 13. 4U library System Status screen showing a power supply failure
User Interfaces 23