Juniper Networks MX480 - Manual (Page 62)

Table 10: Alarm LEDs and Alarm Cutoff/Lamp Test Button
Description State Color Shape
Critical alarm LED—Indicates a critical condition that
can cause the router to stop functioning. Possible
causes include component removal, failure, or
overheating. On steadily Red
Warning alarm LED—Indicates a serious but nonfatal
error condition, such as a maintenance alert or a
significant increase in component temperature. On steadily Yellow
Alarm cutoff/lamp test button—Deactivates red and
yellow alarms. Causes all LEDs on the craft interface
to light (for testing) when pressed and held. – –
Related
Documentation
MX480 Craft Interface Description on page 37 •
• MX480 Component LEDs on the Craft Interface on page 38
• Alarm Relay Contacts on the MX480 Craft Interface on page 40
MX480 Component LEDs on the Craft Interface
• Host Subsystem LEDs on the MX480 Craft Interface on page 38
• Power Supply LEDs on the MX480 Craft Interface on page 39
• DPC and MPC LEDs on the MX480 Craft Interface on page 39
• FPC LEDs on the MX480 Craft Interface on page 39
• SCB LEDs on the MX480 Craft Interface on page 40
• Fan LEDs on the MX480 Craft Interface on page 40
Host Subsystem LEDs on the MX480 Craft Interface
Each host subsystem has three LEDs, located on the upper left of the craft interface, that
indicate its status. The LEDs labeled
RE0 show the status of the Routing Engine in slot
0 and the SCB in slot 0 . The LEDs labeled RE1 show the status of the Routing Engine and
SCB in slot 1 . Table 11 on page 38 describes the functions of the host subsystem LEDs.
Table 11: Host Subsystem LEDs on the Craft Interface
Description State Color Label
Host is functioning as the master. On steadily Green MASTER
Host is online and is functioning normally. On steadily Green ONLINE
Host is installed but the Routing Engine is offline. On steadily Red OFFLINE
Host is not installed. Off –
Copyright © 2013, Juniper Networks, Inc. 38
MX480 3D Universal Edge Router Hardware Guide