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M10i HCM Alarm LEDs


Two alarm LEDs are located on the right of the HCM (see M10i HCM LEDs). The circular red LED lights to indicate a critical condition that can result in a system shutdown. The triangular yellow LED lights to indicate a less severe condition that requires monitoring or maintenance. Both LEDs can be lit simultaneously.

To deactivate red and yellow alarms, you must clear the condition that caused the alarm.

Table 1 describes the alarm LEDs in more detail.

Table 1: Alarm LEDs






On steadily

Critical alarm LED—Indicates a critical condition that can cause the router to stop functioning, such as component removal, failure, or overheating.


On steadily

Warning alarm LED—Indicates a serious but nonfatal error condition, such as a maintenance alert or a significant increase in component temperature.