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Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
Chapter 12 Installing Battery Backup Units
Preparing to Install the BBU
• show running config
• show hardware
• show interface
BBU Firmware Upgrade
Note It is only possible to use the backup-battery firmware upgrade command, to upgrade the BBU
firmware and to show information about the BBU firmware upgrade, on routers using the Cisco CG-OS
operating system. This command cannot be used on routers using the Cisco IOS operating system.
To upgrade the BBU firmware and to show information about the BBU firmware upgrade, issue the
following command:
CGR1240# backup-battery firmware upgrade
The firmware upgrade is executed in background and a syslog message is displayed when the BBU
firmware upgrade has completed. During the firmware upgrade, you can issue the show environment
power command to view the state of the BBU firmware upgrade.
BBU Capacity
The router supports up to three BBUs at one time. You should install as many BBUs as needed, up to
three, to meet your emergency power requirements.
If all installed batteries fully discharge while providing backup power to the router, the router will send
a dying gasp message and then shut down.
Preparing to Install the BBU
Tools You Supply
You must provide a #1 Phillips screwdriver to install the BBU.
Safety Information for Installation
Safety Warnings
Before performing any of the tasks in this chapter, read the safety warnings in the “Installation Safety
and Site Preparation” chapter.
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with
the same or equivalent type recommended by the manufacturer. Dispose of used batteries according
to the manufacturer's instructions.
Statement 1015
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