Cisco 880 Series Instalační příručka stáhnout pdf (Strana 43)

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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide

OL-16193-07

Chapter 1 Product Overview

Hardware Features

Real-time clock

(RTC)

RTC provides nonvolatile date and time when the router is

powered on. The RTC is used for verifying the validity of

the Certification Authority stored on the router. It is backed

up by a nonreplaceable lithium battery.

866VAE,

867VAE,

866VAE-K9,

867VAE-K9

All models All models

USB port Supports USB 1.1. Provides connection for USB devices

such as security tokens and flash memory.

The Cisco 880 series routers have a single USB port; the

Cisco 890 series routers have two USB ports.

Cisco 860VAE series routers have one USB 2.0 port on the

rear panel for temporary installation of a Cisco-approved

USB memory device for maintenance purposes only. The

port supports only USB 2.0. Refer to the product datasheet

for the list of supported USB flash memory devices.

Note

The Cisco 860VAE series router USB port does not

support eToken.

866VAE,

867VAE,

866VAE-K9,

867VAE-K9

All models All models

PoE

(Optional) Provides power for 802.3af-compliant devices

(such as phones) that are connected to the router.

The Cisco 880 series routers support a 2-port PoE module;

the Cisco 890 series routers support a 4-port PoE module.

— Models with

PoE

Models with

PoE

G.S HDSL

port Provides 2-wire or 4-wire connection to a G.SHDSL

network.

— 888 —

card slot Provides backup data link. — 3G models —

Dying gasp Detects when the router is losing power, and sends a

power-fail signal to warn the DSLAM

about the

impending line drop.

866VAE,

867VAE,

866VAE-K9,

867VAE-K9

xDSL

models

—

Data BRI port Provides backup and remote management functions by

connecting to the ISDN service provider if the main VDSL

or G.SHDSL link fails.

— xDSL

models,

except for

the 3G and

SRST

models

892

V.92 modem Provides dial backup and remote management functions if

the main WAN link fails.

— — 891

FXO

port An FXO interface connects local calls to a central office or

PBX. This is the interface a standard telephone provides.

— 881 SRST —

FXS

/DID

port

An FXS interface connects directly to a standard telephone,

fax machine, or similar device. This interface supplies

ringing voltage and dial tone to the station.

— SRST

models

—

Table 1-10 Hardware Features Available in Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series ISRs (continued)

Feature Description 860 Series 880 Series 890 Series

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 111 112

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