TX Matrix Alarm Cutoff/Lamp Test Button on the Craft Interface

The alarm cutoff/lamp test (ACO/LT) button (Figure 1) is located to the right of the alarm LEDs on the craft interface (Figure 2).

Figure 1: Alarm Cutoff/Lamp Test Button

Figure 2: Alarm Cutoff/Lamp Test Button on the Craft Interface

• Junos OS Release 10.3 and earlier: In alarm mode (alarms are active), pressing the ACO/LT button deactivates red and yellow alarms, which turns off both LEDs and deactivates the device attached to the corresponding alarm relay contact on the TX-CIP. However, the LCD display continues to report the alarm message until you clear the condition that caused the alarm.
• Junos OS Release 10.4 and later: In both alarm mode and idle mode, pressing and holding the ACO/LT button causes all LEDs on the craft interface to light for testing. After the test completes, any active alarms are deactivated.
• In idle mode (no alarms are active), pressing and holding the ACO/LT button causes all LEDs on the craft interface to light for testing.