4-2
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-10
Chapter 4 Installing and Removing SFCs, RPs, MSCs, FPs, LSPs, PLIMs, and Associated Components
About Installing and Removing Cards and Associated Components
Guidelines for Card Installation and Removal
This section contains the general guidelines for card installation and removal.
Online insertion and removal (OIR) is supported, enabling you to remove and install cards while the
Cisco CRS 4-slot line card chassis is operating. OIR is seamless to users on the network, maintains all
routing information, and ensures session preservation. Notifying the software or resetting the power is
not required. However, you have the option of using the
shutdown
command before removing a card.
The different cards in the line card chassis are all attached to the chassis itself using a pair of ejector
levers and captive screws. The two ejector levers release the card from its midplane connector. The exact
location of the ejector levers and captive screws varies slightly from card to card, but are in general in
the same location: on the upper and bottom of the faceplate of the card.
Figure 4-1
shows the location of
the ejector levers and captive screws on an MSC.
Figure 4-1
Ejector Levers and Captive Screws
Figure 4-2
shows how to operate the ejector levers. Be sure to operate both levers simultaneously.
1
Captive screw
2
Ejector lever
101405
1
2