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5-2
Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-7113-05
Chapter 5 Installing and Removing a SIP
Handling SIPs
A PLIM impedance carrier must be installed in each empty PLIM slot in the Cisco CRS-1 router chassis
(see
Figure 5-2). The impedance carrier preserves the integrity of the chassis and is required for EMI
compliance and proper cooling in the chassis.
Figure 5-2 PLIM Impedance Carrier
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