Cisco Cisco XR 12000 12000 1-Port OC-48c STM-16c POS SDH ISE Line Card

If you need additional equipment, see Cisco.com or your service representative for ordering information.

Refer to the individual line card descriptions in the 

 for more 

information. 

 summarizes the hardware requirements for each POS line card.

See the 

 for information on required interface cables.

The following sections provide procedures for removing or installing a line card:

See the 

 before removing a line 

card while power to the router is on.

The procedures in the following sections use illustrations of a Cisco 12012 Router to support the 
descriptions of removing and installing line cards. Although the card cages of the Cisco 12000 Series 
Routers differ in the number of card slots, the designated use of slots and the process of removing and 
installing a line card are basically the same. Therefore, separate procedures and illustrations for other 
Cisco routers are not included in this publication.

Guidelines for line card removal and installation include the following:

Online insertion and removal (OIR) is supported, enabling you to remove and install line cards while 
the router is operating. OIR is seamless to users on the network, maintains all routing information, 
and ensures session preservation. 

With OIR, notifying the software or resetting the power is not required. However, you have the 
option of using the shutdown command before removing a line card. 

After you reinstall a line card, the router automatically downloads the necessary software from the 
route processor (RP). Next, the router brings online only those interfaces that match the current 
configuration and were previously configured as administratively up. You must configure all others 
with the configure command.