Cisco CISCO871-K9 Hardware Installation Guide - Page 15

Product Overview CH A P T E R 1 This chapter provides an overview of the hardware features for the Cisco 851, Cisco 857, Cisco 871, Cisco 876, Cisco 877, and Cisco 878 routers. It contains the following sections: • General Descriptions of the Router Models, page 1-1 • Feature Summary, page 1-7 • Hardware Features, page 1-9 • Regulatory Compliance, page 1-17 General Descriptions of the Router Models This section provides a general description of each of the router models. • Cisco 851 and Cisco 871 Ethernet-to-Ethernet Routers • Cisco 857 and Cisco 877 ADSL-over-POTS Routers • Cisco 876 ADSL-over-ISDN Router • Cisco 878 SHDSL Router Cisco 851 and Cisco 871 Ethernet-to-Ethernet Routers The Cisco 851 and Cisco 871 Ethernet-to-Ethernet routers can connect a corporate teleworker or a small office to an Internet service provider (ISP) over a broadband or Ethernet connection to a corporate LAN or to the Internet. The Cisco 851 and Cisco 871 routers are switch-capable routers that provide a 4-port Ethernet switch for the LAN. These routers are capable of bridging and multiprotocol routing between LAN and WAN ports. Universal Serial Bus (USB) ports on the Cisco 871 router provide connection for USB devices such as security tokens, flash memory sticks, and printers. The front panels of the Cisco 851 and Cisco 871 routers are identical. (See Figure 1-1.) Figure 1-2 shows the back panel of the Cisco 851 router, and Figure 1-3 shows the back panel of the Cisco 871 router. The Cisco 851 wireless model supports the use of a single 2.4-GHz antenna (see Figure 1-2), and the Cisco 871 wireless model supports the use of two 2.4-GHz antennas (see Figure 1-3). OL-5331-01 Cisco 850 Series and Cisco 870 Series Access Routers Hardware Installation Guide 1-1