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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 an Impedance Carrier
Prerequisites
Before performing this task, remove any rear (MSC) side cosmetic covers.
Required Tools and Equipment
You need the following tools to perform this task:
• ESD-preventive wrist strap
• Large Phillips screwdriver
Steps
To remove a slot cover, follow these steps:
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 Grasp the slot cover with one hand.
Step 3 Loosen the captive screws that attach the slot cover to the chassis.
Step 4 Holding the slot cover by the handle, remove it and set it carefully aside.
What to Do Next
After performing this task, store the slot cover for later reuse. You may now install a card in the
uncovered slot. See the “Installing a Switch Fabric Card” section on page 4-22 and the “Installing an RP,
PRP, or DRP Card” section on page 4-38 for further details.
How to Install or Remove an Impedance Carrier
This section contains the following procedures:
• Installing an Impedance Carrier, page 4-16
• Removing an Impedance Carrier, page 4-18
Installing an Impedance Carrier
This section describes how to install an impedance carrier into the Cisco CRS 8-slot line card chassis.
The chassis is shipped with impedance carriers installed in the MSC and PLIM slots. Both impedance
carrier types are installed in the same manner. (Figure 4-14 shows an MSC impedance carrier for
reference.) For more detailed information on impedance carriers, see the “Information About Impedance
Carriers and Slot Covers” section on page 4-6.