12-14
Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
Chapter 12 Installing Battery Backup Units
Disabling and Enabling the BBU in the Router
Step 6
Verify that the BBU has been successfully installed and is operating normally by viewing the status of
the BBU LED. For more information see the
“Battery Backup Unit LED” section on page 12-22
. The
LED will display the following sequence:
a.
Red fast blinking—BBU is powered on and is initializing.
b.
Red and green alternate blinking— BBU is synchronizing with the router and the other BBUs.
c.
The final BBU LED state is one of the following:
•
Blinking amber—BBU detects that there is no AC power supplied to the router and begins
discharging (supplying power to the router).
•
Blinking green—The BBU was not fully charged when installed and is charging to full capacity. The
router is powered by the AC power supply.
•
Solid green—The BBU is fully charged. The router is powered by the AC power supply.
Step 7
Close the chassis door by following the steps in the
“Opening the Router Chassis”
chapter.
Disabling and Enabling the BBU in the Router
The BBU automatically begins to supply power to the router when it detects that power is not being
received from the AC power supply. You may wish to disable and enable the BBU for the following
reasons:
•
To inhibit the BBU discharge during storage, shipping or transportation in order to preserve battery
life.
•
To replace the battery in an installed and operating router.
The BBU can be disabled and enabled by using a hardware approach or by using software command line
interface (CLI) commands.
•
Disabling the BBU, page 12-14
•
Enabling the BBU, page 12-18
Disabling the BBU
•
Disabling the BBU via Hardware, page 12-14
•
Disabling the BBU via the CLI, page 12-16
Note
The default setting is the BBU becomes enabled when it is connected to the router BBU cable.
Disabling the BBU via Hardware
To disable the BBU via hardware, choose from the following methods:
•
Disable the BBU via BBU Single-Pin Connector on the Router Cable Harness, page 12-15
•
Disable the BBU via BBU Single-Pin Connector on the Router Cable Harness, page 12-15
Use this method when the single-pin connector is not available.