LEDs on the Craft Interface

The craft interface hosts LEDs and an LCD that provide status and troubleshooting information at a glance. It is located on the front of the chassis below the FPC card cage (see Figure 1). The LEDs on the craft interface include the following:

• Alarm—The circular red alarm LED at the left of the craft interface indicates a critical condition that can result in a system shutdown. The triangular yellow alarm next to it indicates a less severe condition that requires monitoring or maintenance. Both alarms can occur simultaneously. When an alarm LED is lit, the LCD describes the cause of the alarm. For more information about the alarm LEDs, see Alarm Relay Contacts, LEDs, and Cutoff Button. For more information about the causes of alarms, see Hardware and Interface Alarm Messages.
• FPC—For each of the eight FPC slots in the router, there are two LEDs and an offline button located on the craft interface directly below the slot. The green LED labeled OK and red LED labeled FAIL indicate FPC status. For more information, see FPC LEDs and Offline Button.
• Routing Engine— LEDs at the right side of the craft interface indicate the status of the Routing Engine—a green one labeled OK and a red one labeled FAIL. For more information, see Routing Engine LEDs and Interface Ports.