Cisco Systems 12000/10700 V3.1.1 manual Supporting Modules, Linecards

Chapter 2 Concepts

Cisco 12000/10720 Router Manager Objects and Interfaces

•Lower card cage, which contains the following:

–1 Non-configurable alarm card in far right slot

–1 Optional GRP in far left slot

–Up to 8 line cards

Supporting Modules

Cisco 12000/10720 Router Manager supports five types of supporting modules within a Cisco 12000 Series Router chassis. Some modules only apply to certain chassis types.

•CSC (Clock Scheduler Card)—CSCs handle requests from line cards, issue grants to access the switch fabric cards, and provide a reference clock to all the cards in the system to synchronize data transfer across the crossbar. Each chassis must have at least one CSC.

•SFC (Switch Fabric Card)—SFCs receive the scheduling information and clocking reference from the CSC cards and perform the switching functions.

•AC or DC Power Supply Module—Chassis can be ordered with either AC or DC power supply modules, having anywhere from one to four AC or DC-input power supplies, depending upon the specific chassis.

•Blower Module—The Cisco 12012 and 12016 Routers contain two blower modules, which circulate cooling air through the card cages in the chassis.

•Fan Tray—The Cisco 12008 Router contains a fan tray, which circulates cooling air through the card cage in the chassis.

Linecards

Refer “Manually Deploying Line Cards” section on page 3-38for details of all the supported technology specific linecards.

Physical Interfaces and Technologies

Physical interfaces are modeled as objects below the parent line card. Some generic properties are supported by all the interfaces. As mentioned before, the type of line card characterizes the type of physical interface; for example, an ATM line card will only support ATM interfaces. However, there can be multiple technologies supported on that physical interface. For example, ATM physical interfaces can support the following:

•Internet Protocol (IP)

•ATM

•SONET

Note Cisco 12000/10720 Router Manager handles both SDH and SONET in the same manner. The Cisco 12000/10720 Routers support both SDH and SONET. For a comparison chart of SONET and SDH speeds, see Appendix A, “SONET/SDH Conversion Chart.”

Cisco 12000/10700 v3.1.1 Router Manager User Guide

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