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C HAPTER

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Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router

OL-32185-02

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Overview of the Cisco4000 SeriesISR

This chapter contains the following sections:

•About the Cisco4000 SeriesISR, page1-1

•Safety Warnings, page1-6

•Chassis Views, page1-6

•Locating the Serial Number, PID, VID, and CLEI, page1-25

•Hardware Features, page1-26

•About Slots and Interfaces, page1-39

•Specifications, page1-42

•Periodic Inspection and Cleaning, page1-51

About the Cisco4000 SeriesISR

The Cisco 4000 Series Integrated Services Routers (ISRs) are modular routers with LAN and WAN

connectivity. They support several interface modules, including Cisco Enhanced Service Modules

(SM-X), and Cisco Network Interface Modules (NIMs).

The Cisco4000 SeriesISR target these applications:

•Enterprise applications—Intended as the mid-size aggregation and gateway router typically residing

in a regional or large branch office:

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WAN aggregation at Cisco Enterprise core

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Internet gateway

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Branch or regional office aggregation

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Remote access aggregation

•Service provider applications—Intended for high-end Enterprise Branch environments:

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High-end customer premises equipment (CPE) for business-quality Internet access

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Service provider leased line aggregation

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Provider edge (PE) and high-end customer edge (CE) for Layer 2 VPN or Layer 3 VPN services

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Low-end Ethernet aggregation

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