24Chapter 3 Hardware Troubleshooting
BRIM LEDs
The BRIM has one additional LED beside each
Figure 4 BRIM LEDs
Power LED
Status LED
For more information on the power and status LED functions, see Media bay module LEDs (expansion units only) on page 21.
Check the wiring connections
After you check the power source and the LEDs, begin to check the wiring. Check the connections between the following components:
•the expansion unit and the main unit
•the main unit and to the
•the power supply and the AC power outlet
•if you are using a UPS, check the connection from:
—the USB port on the BCM450 to the USB port on the UPC
—the UPS and the electrical outlet
—the connection from the power supply to both the UPS and the BCM450 main unit
•the lines and extensions connected through the
•the auxiliary
Verify the keycodes
If a specific feature is not functioning, verify that the feature is included in your installed keycodes. This section provides procedure for verifying the installed keycodes using either Element Manager or Telset. For more detailed information about retrieving and entering the keycode for your system, see the Keycode Installation Guide