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• Chassis Status LEDs in an EX 8200 series Switch  

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• LCD Panel in an EX 8200 series Switch
• Understanding Alarm Types and Severity Levels on EX-series Switches

Chassis Status LEDs in an EX 8200 series Switch

The top front of the chassis of an EX 8200 series switch has three LEDs on the right side of the LCD panel.

See Figure 1.

Figure 1: Chassis Status LEDs

Table 1 describes the chassis status LEDs in an EX 8200 series switch, their colors and states, and the status they indicate.

Table 1: Chassis Status LEDs in an EX 8200 series Switch

LED Label (Description)	Color	State and Description
ALM (Alarm)	Unlit	No alarm.
	Red	Major alarm.
	Yellow	Minor alarm.
SYS (System)	Unlit	Switch is powered off.
	Yellow	One or more component failures are generating one or more alarms.
	Green	Switch is operating normally.
MST (Master)	Unlit	Switch is powered off.
	Green	Master Routing Engine is operational.

A major alarm (red) indicates a critical error condition that requires immediate action.

A minor alarm (yellow) indicates a noncritical condition that requires monitoring or maintenance. A minor alarm that is left unchecked might cause interruption in service or performance degradation.

All three LEDs can be lit simultaneously.