Juniper Networks M160 manual LCD and Navigation Buttons, LCD Idle Mode

Hardware Component Overview

Relay Contacts” on page 34. The LCD on the craft interface reports the cause of the alarm, as described in “LCD Alarm Mode” on page 30.

To deactivate red and yellow alarms, press the button labeled ACO/LT (for “alarm cutoff/lamp test”), which is located to the left of the alarm LEDs. Deactivating an alarm turns off both LEDs and deactivates the device attached to the corresponding alarm relay contact on the CIP. However, the LCD continues to report the alarm message until you clear the condition that caused the alarm.

Table 9 describes the alarm LEDs and alarm cutoff button in more detail.

Table 9: 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 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.

——Alarm cutoff/lamp test button—Deactivates red and yellow alarms. Causes all LEDs on the craft interface to light (for testing purposes), when pressed and held.

LCD and Navigation Buttons

A four-line LCD is located in the craft interface, along with six navigation buttons.

The LCD operates in two modes, as described in the following sections:

LCD Idle Mode on page 29

LCD Alarm Mode on page 30

LCD Idle Mode

During normal operation, the LCD operates in idle mode and reports current status information, as shown in Figure 12.

Craft Interface 29