Cisco CRS Manual

Step 15
Use the 10-mm hex key wrench to remove the twelve M12 hex head bolts and washers, six on each unistrut, that attach
the unistrut to the top of the chassis. See the figure below.
Figure 17: Removing the Unistrut
Closed end at front of
unistrut
3Left unistrut1
Right unistrut with cutaway
at rear
2
What to Do Next
Be sure that all parts have been carefully set aside and repackaged appropriately.
Cisco CRS Carrier Routing System Fabric Card Chassis Installation Guide
24
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