Cisco CISCO871-K9 - 871 Integrated Services Router Hardware Installation Manual page 22

Feature Summary
Table 1-1 Hardware Feature Summary (continued)
Feature
ADSL-over-ISDN port
G.SHDSL port
Console port
Flash memory
Synchronous dynamic RAM (SDRAM) Cisco 850 series routers: 64 MB of SDRAM on board.
Router Reset button
Dying gasp
Wall-mount feature
USB ports
IPSec hardware accelerator
Integrated 802.11b/g radio module
External power-over-Ethernet (PoE)
module
Kensington security slot
Security features
Autosensing function
Cisco 850 Series and Cisco 870 Series Access Routers Hardware Installation Guide
1-8
Description
Cisco 876 router only. Provides connection to an ADSL-over-ISDN network. Does
not support the autoswitch function.
Cisco 878 router only. Provides 2-wire or 4-wire connection to a G.SHDSL
network.
Provides a connection to the terminal or PC for software configuration or
troubleshooting using the command-line interface (CLI). The console port may be
configured as a virtual auxiliary port (using the CLI) for dial backup and remote
management.
Cisco 850 series routers: 
20 MB of flash memory (default and maximum)
Cisco 870 series routers:
20 MB of flash memory (default)
28 MB of flash memory for routers ordered with a Cisco IOS Advanced IP Services
image or Enterprise Services image.
Expandable by 8, 16, or 32 MB, up to a maximum of 52 MB.
Cisco 870 series routers: 128 MB of SDRAM on board.
Expandable by 64 or 128 MB, up to a maximum of 256 MB.
Resets the router configuration to the factory default.
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.
Cisco 871 router only. Supports USB-compatible devices such as security tokens
and flash memory sticks.
The security processor implements symmetric key encryption, public key
encryption, authentication, and data compression in hardware.
(Optional) Provides connectivity to a wireless LAN using IEEE 802.11b/g
standards. Enables the router to act as an access point (AP) in infrastructure mode.
(Optional) Provides inline power for powered devices (such as PCs and phones)
that are connected to the router.
Allows the router to be secured to a desktop or other surface by using Kensington
lockdown equipment.
Provides support for virtual private networks (VPNs), Cisco IOS Firewall, and
IPSec. For information about software security features, see the Cisco 850 Series
and Cisco 870 Series Access Routers Software Configuration Guide.
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.
Chapter 1 Product Overview
OL-5331-01