Cisco C1861-SRST-B/K9 Hardware Installation Guide - Page 19

Chapter 1 Overview Hardware Features Table 1-1 Summary of Cisco 1800 Series Fixed-Configuration Built-In Interfaces Feature Managed 8-port 10/100 Fast Ethernet switch 10/100 Fast Ethernet (FE) WAN port ADSL-over-POTS port ADSL-over-ISDN port G.SHDSL port ISDN S/T port V.92 analog modem port. Console port Auxiliary port Two USB ports Integrated 802.11a/b/g radio module Internal Power-over-Ethernet (PoE) module Dying gasp Wall-mount feature Kensington security slot Autosensing function Description Provides connection to 10/100BASE-T (10/100-Mbps) Ethernet networks. Compatible with 10/100-Mbps devices. Provides connection to 10/100BASE-T Ethernet networks. Can be connected to other network devices, such as cable modem, ADSL, and router. Cisco 1801, Cisco 1802, and Cisco 1803 routers have one 10/100 FE WAN port. Cisco 1811 and Cisco 1812 routers have two 10/100 FE WAN ports. Cisco 1801 router only. Provides connection to an ADSL network. Does not support the autoswitch function. Cisco 1802 router only. Provides connection to an ADSL-over-ISDN network. Does not support the autoswitch function. Cisco 1803 router only. Provides 2-wire or 4-wire connection to a G.SHDSL network. Cisco 1801, Cisco 1802, Cisco 1803, and Cisco 1812 routers only. Should the main WAN link go down, provides dial backup and remote management functions by connecting to an ISDN service provider. Cisco 1811 routers only. Should the main WAN link go down, provides dial backup and remote management functions. Provides a connection to the terminal or PC for software configuration or troubleshooting using the command-line interface (CLI). Provides a connection to a modem for software configuration or troubleshooting using the command-line interface (CLI). Cisco 1811 and Cisco 1812 routers only. Support Cisco USB flash memory modules and USB eToken modules. Wireless models only. Provides connectivity to a wireless LAN using IEEE 802.11a/b/g standards. Enables the router to act as an access point (AP) in infrastructure mode. (Optional) Provides inline power for powered devices, such as IP phones, that are connected to the router. Detects whether the router is about to lose power, and sends a signal to warn the digital subscriber line access multiplexer (DSLAM) about the impending line drop. Brackets for mounting the router on a wall or vertical surface. Allows the router to be secured to a desktop or other surface by using Kensington lockdown equipment. Eliminates the need for a crossover cable and allows the router to detect medium-dependent interface in normal mode (MDI) or medium-dependent interface in crossover mode (MDIX) in any other PC or hub with a straight-through cable or a crossover cable. The router is capable of bridging and multiprotocol routing between the LAN and WAN ports. Memory Cisco 1800 series fixed-configuration routers contain the following types of memory: OL-6425-03 Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide 1-3