Acer Altos R5250 - Manual (Page 25)

7
External and internal structure
Front bezel
The front bezel provides an interface for system management via
status LED indicators. The light pipes on the backside of the front bezel
allow the system status LEDs to be monitored when the front bezel is
closed.
The front bezel is removable to allow access to the server’s hard drives,
peripheral device, and control panel. For details on how to remove the
front bezel, see “To remove the front bezel” section on page 29.