Cisco CRS Manual

Step 11
Rotate the assembly forward, lift it away from the front (SFC) side of the chassis, and set it aside.
Step 12
Remove the power shelf shutoff extenders (number 2 in the figure below) by unscrewing the four screws, two screws
per extender, and set the screws and the extenders aside.
Step 13
Remove the front upper grille support (number 1 in the figure below) from the unistruts by unscrewing the four M4x14-mm
flat head screws (two for each unistrut).
Step 14
Set the screws aside, then lift the grille support away from the front (SFC) side of the chassis, and set it aside.
Figure 16: Removing the Front (SFC) Side Upper Grille Support and Power Shutoff Extenders
Power shutoff extender2Front upper grille support1
Cisco CRS Carrier Routing System Fabric Card Chassis Installation Guide
23
Installing and Removing Exterior Cosmetic Components
Steps

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs