
18 Chapter 3 Hardware Troubleshooting
NN40020-700NN40020-700
• BRIM LEDs on page 25
System status LEDs
The two system status LEDs on the BCM50 main units (BCM50, BCM50a, BCM50e, BCM50b,
BCM50ba, and BCM50be) show the current state of the BCM50 system.
You can view the system status LEDs on the faceplate and on the top of the main unit. See the
figure Location of system status LEDs on a main unit on page 18. The bottom LED is the power
LED, and the top LED is the status LED. Under normal operating conditions, both LEDs are solid
green.
Figure 1 Location of system status LEDs on a main unit
The table System status LEDs states and descriptions on page 18 describes the meaning of the
system status LEDs after the system boots up and is in service.
Table 1 System status LEDs states and descriptions
Power
Status
Description
Solid green Solid green Normal operation.
Solid green
or
Flashing green
Solid red A Major or Critical alarm is activated on the BCM50.
You must clear the status LED using the Element Manager Alarm Panel.
The LED does not clear itself.
See the Administration Guide for more information.
Flashing green Solid green Contact technical support.
Off Off No power to BCM50.
Power LED
Status LED
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