Specifications

Cisco 12010, Cisco 12410, and Cisco 12810 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

OL-13810-01

Removing and Installing the Alarm Card

Procedures for removing and installing the alarm card are described in the following sections:

• Upgrading the Mbus ROM, page 15

• Removing an Alarm Card, page 15

• Installing an Alarm Card, page 17

Note One alarm card can be replaced while the system is running, but you must do this quickly

because the normal cooling process is interrupted when the air filter door is open.

Caution When an alarm card is installed or replaced, you must perform an upgrade to Mbus ROM agent

Version 3.46 (minimum). See the “Upgrading the Mbus ROM” section that follows.

Upgrading the Mbus ROM

The MBus agent ROM firmware is bundled with the Cisco IOS software. You must upgrade the MBus

agent ROM firmware on the GRP card or line cards if your MBus agent ROM firmware is a random

number (for example, FF.DE), or if it is not the currently released version (the current version is 1.33).

To upgrade the MBus firmware on one or more line cards, perform the following tasks in privileged

EXEC mode.

Step 1 Check the current MBus agent software version using the show diag [slot-number] command.

Step 2 Upgrade the MBus agent software on a specific line card using the upgrade mbus-agent-rom

[slot-number] command.

Step 3 Upgrade the MBus agent software on all line cards using the upgrade mbus-agent-rom all command.

Step 4 Verify that there is a new MBus agent software version using the show diag [slot-number] command for

each line card.

Removing an Alarm Card

To remove an alarm card, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and connect the leash to one of the ESD connection

sockets on the front of the chassis or to a bare metal surface on the chassis (see Figure 4 on page 9).

Step 2 Loosen the captive screws (one on each side of the air filter door) that fasten the air filter door to the

chassis (Figure 7).