TX Matrix Alarm LEDs on the Craft Interface
Two large alarm LEDs are located at the left of the craft interface (see Figure 1). Both LEDs can be lit simultaneously.
- 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.
Figure 1: Alarm LEDs on the Craft Interface
A condition that causes an LED to light also activates the corresponding alarm relay contact on the connector interface panel (TX-CIP). The LCD display on the craft interface reports the cause of the alarm.
Table 1 describes the alarm LEDs and alarm cutoff button in more detail.
Table 1: Alarm LEDs and Alarm Cutoff/Lamp Test Button
Shape | Color | State | Description |
|---|---|---|---|
| Red | On steadily | Critical alarm LED—Indicates a critical condition that can cause the TX Matrix router to stop functioning. Possible causes include component removal, failure, or overheating. |
| Yellow | On steadily | Warning alarm LED—Indicates a serious but nonfatal error condition, such as a maintenance alert or a significant increase in component temperature. |
