Specifications

Cisco 12016, Cisco 12416, and Cisco 12816 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions

OL-13811-01

Removing and Installing an Alarm Card

The router is equipped with two alarm cards. One card occupies the dedicated far left slot of the upper

card cage; the second occupies the dedicated far right slot of the lower card cage (see Figure 8). In both

card cages, the alarm card slot differs from the rest of the card cage slots in that it is labeled as an alarm

card slot, is physically narrower, and has a different backplane connector.

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

• Removing an Alarm Card from the Upper Card Cage, page 18

• Installing an Alarm Card into the Upper Card Cage, page 20

• Removing an Alarm Card from the Lower Card Cage, page 21

• Installing an Alarm Card into the Lower Card Cage, page 22

• Checking the Replacement Alarm Card, page 23

Caution There is a caution label on the panel beside both alarms cards. For the upper cage alarm card, the label

reads: For screw alignment, ensure that slot 0 is populated when inserting or removing alarm card. For

the lower cage alarm card, the label reads: For screw alignment, ensure that slot 15 is populated when

inserting or removing alarm card. Line card slots adjacent to the alarm cards must always be populated.