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Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Installation Guide
OL-6256-17
Chapter 4 Installing and Removing Line Cards, PLIMs, and Associated Components
Information About Installing and Removing Cards and Associated Components
Guidelines and Warnings for Card Installation and Removal
This section contains the guidelines for card installation and removal.
Caution Removing more than one card at a time can misalign the chassis and may damage the card or chassis
when reinserting the cards. Remove and reinsert only one card at a time.
Online (in-service) insertion and removal (OIR) is supported, enabling you to remove and install cards
while the router 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 and PLIMs 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 or PLIM 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
1 Captive screw 2 Ejector lever
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