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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
How to Install or Remove a Switch Fabric Card
Step 1 Attach the ESD-preventive wrist strap to your wrist and connect its leash to an ESD connection socket
on the rear (MSC) side or a bare metal surface on the chassis.
Step 2 Identify the switch fabric card to be removed from the card cage.
Step 3 To loosen the card from the slot, turn the two captive screws on the front panel of the card
counterclockwise.
Step 4 To unseat the card from the midplane connector, grasp the two card ejector levers and simultaneously
pivot both ejector levers 90 degrees (70 degrees for a newer switch fabric card) away from the front edge
of the card carrier.
Step 5 Touching only the metal card carrier, slide the card from the slot and place it directly into an antistatic
sack or other ESD-preventive container. If you plan to return the defective card to the factory, repackage
it in its original shipping container.
What to Do Next
After performing this task, replace any front cover plates.
Verifying the Installation of a Switch Fabric Card
This section describes how to verify that a switch fabric card has been properly installed. Figure 4-21
shows the switch fabric card front panel.
Figure 4-21 Switch Fabric Card Front View
Understanding the Alphanumeric LEDs
At one end of the faceplate, near an ejector lever, a switch fabric card has an alphanumeric LED display
that shows a sequence of messages indicating the state of the card.
Note It is normal for some displayed messages to appear too briefly in the LED display to be read.
Troubleshooting the Switch Fabric Card
If the installed or replaced switch fabric card fails to operate or to power up on installation:
1. Make sure that the card is seated firmly in the Cisco CRS 8-slot line card chassis slot. One easy way
to verify physical installation is to see whether the front faceplate of the switch fabric card is even
with the fronts of the other cards installed in the card cage.
2. Check whether the ejector levers are latched and that the captive screws are fastened properly. If you
are uncertain, unlatch the levers, loosen the screws, and attempt to reseat the switch fabric card.
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