Acer Altos R920 Series - Manual (Page 26)

1 System tour 8
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 server’s hard drives,
peripheral device, and control panel. For details on how to remove the
front bezel, see “To remove the front bezel” on page 41.