Juniper MX2020 - Page 61

Table 12: Alarm LEDs and Alarm Cutoff/Lamp Test Button
Description
LED Control
NameStateColorShape
Indicates a critical
condition that can cause
the router to stop
functioning. Possible
causes include component
removal, failure, or
overheating.
Critical alarmOn
steadily
Red
Indicates a serious but
nonfatal error condition,
such as a maintenance
alert or a significant
increase in component
temperature.
Warning alarmOn
steadily
Yellow
Deactivates red and
yellow alarms. Causes all
LEDs on the craft
interface to light (for
testing) when pressed and
held.
Alarm cutoff/lamp
test button
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RELATED DOCUMENTATION
MX2020 Craft Interface Description | 31
MX2020 Alarm Relay Contacts on the Craft Interface | 33
MX2020 Universal Edge Router Overview | 3
35