Cisco ASR 5000 Installation Manual page 234

Installing the Application Card
Step 3 Push the ejector levers inward firmly and straight until the card is firmly seated in the chassis midplane and the ejector
levers can be pushed in no further. Press firmly on the card's faceplate to ensure that it is fully seated. The card's front
panel should be flush against the chassis' upper and lower card mounts for the slot.
Step 4 Slide the interlock switch on the front panel of the application card upward to lock the ejector tab in place. The flange
on the left-side of the interlock switch prevents movement of the ejector tab when raised completely.
You must slide the interlock switch upward before securing the card's top screw to the mounting
Important
rail.
ASR 5000 Installation Guide
218
Replacing Application Cards