When you remove a MLC, always use the ejector levers to ensure that the connector pins disconnect from the
backplane in the logical sequence expected by the router. Any card that is only partially connected to the
backplane can halt the router. When you install a MLC, always use the ejector levers to ensure that the card
is correctly aligned with the backplane connector; the connector pins should make contact with the backplane
in the correct order, indicating that the card is fully seated in the backplane. A card that is only partially seated
in the backplane will cause the router to hang and subsequently crash.
Caution
Removing a Modular Line Card
If you are replacing a failed modular line card (MLC), remove the existing MLC first, then install the new
MLC in the same slot. To remove a MLC, use the figure below as a reference and follow these steps:
1. Attach an ESD-preventive wrist strap and follow its instructions for use.
2. Disconnect and remove all interface cables from the ports; write down the current connections of the
cables to the ports on the MPAs and the MPA locations if you remove the MPA.
3. Detach the cable-management bracket from the MLC.
Use a screwdriver to loosen the captive screw at each end of the MLC faceplate. (See callout 1 on the figure
below).
Cisco ASR 9000 Series Aggregation Services Router Ethernet Line Card Installation Guide
80
Installing and Removing Line Cards and Transceiver Modules
Removing a Modular Line Card
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