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Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
Chapter 12 Installing Battery Backup Units
Battery Backup Unit LED
Battery Backup Unit LED
The BBU features a single LED that indicates the status of the BBU when it is installed in the router.
Figure 12-9
Battery Backup Unit LED Location
LED
Color and State
Description
BBU
Green solid
Idle state
Green blinking
Charging
Amber blinking
Discharging (providing power to the system)
Amber slow blinking
Disabled with the system software
Red/green blinking
Initializing
Red fast blinking
Resetting
Red blinking
Bootloader mode
Red slow blinking
Test mode
Red solid
BBU failure
Off
Disabled (disconnected from router or completely
discharged)
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