Cisco Firepower 8140 Manual de instrucciones

Installing Battery Backup Units

The Cisco Catalyst Industrial Router 8140 Heavy Duty Series Router (IR8140H or router) supports up to three

battery backup units (BBUs), which provide power to the router if the router AC power supply fails or is not

available. This section describes the BBU features and installation procedures.

These topics are discussed:

•Battery Backup Operations, on page 1

•BBU Status, on page 2

•Battery Backup Mode, on page 3

•BBU Lifecycle Handling and Storage Guidelines, on page 3

•Preparing to Install the BBU, on page 5

•BBU Components, on page 6

•Installing BBUs in the Router, on page 8

•BBU Technical Specifications, on page 16

Battery Backup Operations

The battery backup unit (BBU) provides the router with an emergency power source if the AC power source

is unavailable.

The router supports up to three BBU units installed at one time. The units are mounted in the center-front of

the IR8140H. When you install 3 BBUs, up to 8 hours of battery backup power is available on a fully-loaded

system in the event of an AC power failure. BBUs can be replaced in the field.

The BBU can be installed in the router while the router is powered on and operating normally.

The BBU internal components include battery cells, a primary protection circuit, a fuel gauge, and a charger.

For detailed, illustrated descriptions of the BBU, see BBU Components, on page 6.

Installing Battery Backup Units

Figure 1: Battery Backup Units Mounted on Router

DescriptionCisco Product ID (PID)Item

Battery backup units. The router supports up to three BBUs.IRMH-BATT-4AH1

BBU Status

The BBU must first be enabled before it can begin supplying power to the router. The BBU continues to

supply power to the router until at least one of the following conditions is met:

• All BBUs are completely discharged.

• AC power to the router is restored.

• The BBU is disabled with software commands (see Cisco Catalyst IR8140 Heavy Duty Series Router

Software Configuration).

For information on technical details about the router power path selection and the conditions that trigger the

BBU to begin operating, see BBU Technical Specifications, on page 16.

Note

Installing Battery Backup Units

BBU Status

Battery Backup Mode

This section describes the impact on the router configuration and operating capabilities when the router

switches from AC power to BBU power.

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.

Router Configuration

The router software configuration is not impacted when the router switches from AC power to BBU power.

Universal Interface Module (UIM) Operation

By default, the Universal Interface Modules (UIMs) installed in slots continue to operate normally when the

router switches from AC power to BBU power.

You can configure the router to automatically power off specific modules when the router switches to BBU

power.

BBU Lifecycle Handling and Storage Guidelines

This section contains information about the BBU status and condition during the BBU lifecycle and how to

approach and manage it.

BBU Storage Related Definitions

• Shelf life—Shelf life is the length of time before a BBU needs to be recharged in order to avoid BBU

over-discharge.

• State of charge—State of charge (SOC) is the amount of charge on a battery and it is expressed as a

percentage value. For example, an SOC of 100% represents a battery that is fully charged, and an SOC

of 0% represents a battery that is fully discharged.

BBU Shipping and Receiving Guidelines

The BBU shipping and receiving guidelines define the BBU SOC status and how it can be managed at this

stage of the BBU life cycle:

• Cisco ships BBUs with a minimum of 60% SOC from the Cisco contract manufacturer (CM).

• Each BBU should have a minimum SOC of 50% upon receipt from the Cisco CM.

Installing Battery Backup Units

Battery Backup Mode

• A minimum SOC of 50% allows for approximately 10 weeks between shipment from Cisco’s CM

and a customer checking the SOC.

• SOC decreases approximately 1% per week (due to self-discharge).

• BBU SOC status can be checked using the command line interface (CLI).

• BBUs with less than 50% SOC should be recharged by the system integrator or customer to >50%

SOC.

BBU Storage and Handling Guidelines

The BBU storage and handling guidelines define the BBU shelf life status and how it can be managed at this

stage of the BBU lifecycle:

• The shelf life of a BBU installed in a router with discharge disabled and BBU disabled, or for a spare

BBU, is typically 6 to 12 months.

• Prior to connection to an AC source, the BBU shelf life is a minimum of 21 days.

• When long term storage at a customer site is anticipated, Cisco requires that the BBUs be recharged prior

to expiration of shelf life.

• When AC power is disconnected and the Cisco IR8140H router is removed from service:

• The router switches to DC power supplied by the BBU(s) and remains powered for approximately

8 hours.

• After 8 hours the BBU(s) reaches low voltage disconnect, and the remaining shelf life is a minimum

of 21 days.

• The BBU should be placed in "BBU disable mode" when the router is removed from service in

order to extend BBU shelf life up to 365 + 21 days

• The remaining shelf life depends on the State of Charge prior to removal of AC power and the BBU

being placed in a "BBU disable mode".

• Disabling a BBU at 0% SOC means a minimum remaining shelf life of 21 days, and disabling a

BBU 100% SOC means a maximum remaining shelf life of 386 days.

Recharging a BBU

To recharge a BBU:

Step 1 Connect the router to an AC power source.

Step 2 Enable the BBU.

Step 3 Allow at least 8 hours of charge time per BBU, i.e. for routers with 3 BBUs each, allow 24 hours charge time per router.

Step 4 When the charge time is finished, disable the BBU if the BBU will not be used as backup power for this router.

Installing Battery Backup Units

BBU Storage and Handling Guidelines

Replacing a BBU

When you replace a BBU in the router, we highly recommend:

• Replacing all the BBUs.

• Verifying all the replacement BBUs are the same version.

When a router operates with different BBU versions, it may result in misbehavior in the BBU functionality.

To replace a BBU:

Step 1 Disconnect the BBU module from the router per instructions.

Step 2 Replace all BBUs of the router at the same time.

Do not mix used BBUs with new BBUs.

Note

BBU Disposal Guidelines

Instructions for disposal of BBUs

• For routers under warranty, follow the standard Cisco RMA procedures.

• If Cisco identifies a BBU or set of BBUs as a non-functional item that can be discarded without being

returned for failure analysis, BBUs removed for replacement must be disposed of in accordance with

local guidelines.

• US and Canadian customers should utilize www.call2recycle.org to properly recycle the lithium ion

BBUs.

• For local recycling outside of the US and Canada, customers should contact the following Cisco email

for guidance specific to customer’s country/region: [email protected]

• For further local take-back and recycling information, customers can refer to: www.cisco-returns.com.

Preparing to Install the BBU

Before installing BBUs in the router, ensure that the following guidelines have been met:

Tools You Supply

You must provide a #1 Phillips screwdriver to install or remove the BBU modules inside the BBU cage. You

also need these tools:

• T15 Torx Driver

• 10mm Socket Driver

Installing Battery Backup Units

Replacing a BBU

Safety Warnings

Read the safety warnings in Installation Safety and Site Preparation.

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

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement

1030

Warning

When you replace a BBU in the router, we highly recommend:

Note

• Replacing all the BBUs.

• Verifying all the replacement BBUs are the same version.

When a router operates with different BBU versions, it may result in misbehavior in the BBU functionality.

Preventing Electrostatic Discharge Damage

The BBUs are sensitive to electrostatic discharge (ESD) damage which can occur when electronic cards or

components are handled improperly, and can result in complete or intermittent failures.

To prevent ESD damage, follow these guidelines:

• Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.

• Connect the equipment end of the strap to an unfinished chassis surface.

• Place the BBU on an antistatic surface or in a static shielding bag. If the BBU will be returned to the

factory, immediately place it in a static shielding bag.

• Avoid contact between the battery and clothing. The wrist strap protects the battery from ESD voltages

on the body only; ESD voltages on clothing can still cause damage.

• Do not remove the wrist strap until the installation is complete.

BBU Components

This section illustrates and describes the BBU components you should be familiar with when installing the

BBU.

Installing Battery Backup Units

Safety Warnings

For technical specifications of the components described in this section, see BBU Technical Specifications,

on page 16.

Note

There is a plug connector on the back and a socket connector on the front of each BBU. Also, there is a BBU

alignment pin on the back and an alignment hole on the front. When BBUs are plugged into each other, they

mate front to back. The plug connector engages with the socket connector, and the alignment pin with the

alignment hole. When you connect a second or third battery to a battery already installed, use the alignment

pin and hole to ensure correct battery position and align the battery connectors.

Figure 2: Rear of Battery Backup Unit

DescriptionItem

BBU Alignment Pin1

BBU Interface Plug2

Captive screws (6) for installing the BBU for stacking or installing BBUs inside the

BBU bracket of the BBU module

Installing Battery Backup Units

BBU Components

Figure 3: Front of Battery Backup Unit

DescriptionItem

BBU Interface Socket1

BBU Alignment Hole2

Captive Nut (6) for installing the BBU for stacking or installing BBUs inside the BBU

bracket of the BBU module

Installing BBUs in the Router

This section describes how to install a BBU in the router. A new BBU will be about 50% charged when you

receive it.

When you install a BBU in the router, if there is no AC power being supplied to the router, the BBU (if not

in a disabled state) will immediately begin to power the router when it is connected.

Caution

To prevent the BBU from powering the router prior to installation in the field, the BBU is disabled during

shipment. To ensure the BBU can be charged and power the router when required, enable the BBU right after

installation.

When you replace a BBU in the router, we highly recommend:

Note

• Replacing all the BBUs.

• Verifying all the replacement BBUs are the same version.

When a router operates with different BBU versions, it may result in misbehavior in the BBU functionality.

Follow these steps to install BBUs in the router:

Installing Battery Backup Units

Installing BBUs in the Router

1. Installing BBU Modules to the BBU Cage, on page 9

2. Attaching BBU Cage to the Faceplate, on page 10

3. Installing BBU Assembly or Blank to the Router, on page 13

Follow these steps to remove BBUs from the router:

1. Removing BBU Assembly or Blank From the Router, on page 16

2. Removing the BBU Cage from the Faceplate, on page 13

3. Removing BBU Modules from the BBU Cage, on page 10

Installing BBU Modules to the BBU Cage

Follow these steps to install BBU modules to the BBU cage:

BBU cage4Alignment hole1

BBU security tab5Captive nuts (6)2

BBU cage pin notch3

Installing Battery Backup Units

Installing BBU Modules to the BBU Cage

Step 1 To install the first BBU Module, line up the BBU pin with the BBU cage pin notch, then torque the six captive screws

to 7-9 in-lbs with a #1 Phillips screwdriver in sequence as shown in the following figure.

Step 2 To install a second BBU module, line up the BBU alignment pin with the BBU alignment hole, and press the plug and

socket connectors together. Torque the six captive screws to 7-9 in-lbs with a #1 Phillips screwdriver in sequence as

shown in the following figure.

Step 3 To install a third BBU module, line up the BBU alignment pin with the BBU alignment hole and press the plug and socket

connectors together. Torque the six captive screws to 7-9 in-lbs with a #1 Phillips screwdriver in sequence as shown in

the following figure.

Removing BBU Modules from the BBU Cage

To remove BBU modules from the BBU cage, you must start with the last BBU module and work inward

towards the back of the BBU cage.

Step 1 Loosen the 6 captive screws using a #1 Phillips screwdriver and pull off the BBU module.

Step 2 Proceed to the next BBU module until all modules are removed.

Attaching BBU Cage to the Faceplate

Follow these steps to attach the BBU cage to the faceplate:

Installing Battery Backup Units

Removing BBU Modules from the BBU Cage

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