Troubleshooting Using the M320 Component LEDs
The following LEDs are located on various router components and display the status of those components:
- SIB LEDs—Three LEDs on each SIB faceplate—ACTIVE, OK, and FAIL—indicate the status of that SIB.
- CB LEDs—Three LEDs on each CB faceplate indicate the status of that CB. If no LEDs are lit, the CB is not receiving power.
- PIC LEDs—Each port on each PIC has an LED that indicates the status of the port. For more information, see the M320 Multiservice Edge Router PIC Guide.
- Power supply LEDs—One LED on each power supply faceplate indicates the status of that power supply.
