Cisco Systems Cisco 12416, Cisco 12816 - page 56

Chapter 1 Product Overview
Alarm Card, Line Card, and Rout Processor Overview
1-30
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
GRP Alphanumeric Message Displays
The alphanumeric message displays are organized in two rows of four LED
characters (Figure 1-16).
Figure 1-16 Alphanumeric Message Displays—Front Panel
The alphanumeric message displays show router status messages during the boot
process, and after the boot process is complete.
• During the boot process, the message displays are controlled directly by the
MBus module.
• After the boot process, the message displays are controlled by Cisco IOS
software (through the MBus).
The alphanumeric message displays also provide information about different
levels of system operation, including the status of the GRP, router error messages,
and user-defined status and error messages
Note A complete, descriptive list of all system and error messages appears in the Cisco
IOS System Error Messages publication.
H10780
PROCESSOR
Upper alphanumeric
LED display (four digits)
Lower alphanumeric
LED display (four digits)