Juniper Networks MX480 - Manual (Page 61)

MX480 Craft Interface Description
The craft interface allows you to view status and troubleshooting information at a glance
and to perform many system control functions. It is hot-insertable and hot-removable.
The craft interface is located on the front of the router above the DPC card cage and
contains LEDs for the router components, the alarm relay contacts, and alarm cutoff
button.
Figure 19: Front Panel of the Craft Interface
NOTE: At least one SCB must be installed in the router for the craft interface
to obtain power.
Related
Documentation
Alarm LEDs and Alarm Cutoff/Lamp Test Button on the MX480 Craft Interface on
page 37 •
• MX480 Component LEDs on the Craft Interface on page 38
• Alarm Relay Contacts on the MX480 Craft Interface on page 40
Alarm LEDs and Alarm Cutoff/Lamp Test Button on the MX480 Craft Interface
Two large alarm LEDs are located at the upper right of the craft interface. The circular
red LED lights to indicate a critical condition that can result in a system shutdown. The
triangular yellow LED lights to indicate a less severe condition that requires monitoring
or maintenance. Both LEDs can be lit simultaneously.
A condition that causes an LED to light also activates the corresponding alarm relay
contact on the craft interface.
To deactivate red and yellow alarms, press the button labeled ACO/LT (for “alarm
cutoff/lamp test”), which is located to the right of the alarm LEDs. Deactivating an alarm
turns off both LEDs and deactivates the device attached to the corresponding alarm
relay contact on the craft interface.
Table 10 on page 38 describes the alarm LEDs and alarm cutoff button in more detail.
37 Copyright © 2013, Juniper Networks, Inc.
Chapter 2: MX480 Hardware Components