Cisco CVA122 Guía de configuración

Quick Start User Guide

Cisco CVA122/122E Cable Voice Adapter

1Introduction

2Installing the Cisco CVA122/122E Cable Voice Adapter

3Installing the USB Driver for a Windows PC

4Configuring the Computer for Ethernet Network Access

5Cisco Limited Warranty and Software License

6United States Federal Communications Commission Notice

7Translated Safety Warnings

1Introduction

This guide provides the basic information needed to install the Cisco CVA122/122E Cable Voice

Adapter. The Cisco CVA122/122E Cable Voice Adapter connects a cable TV (CATV) network to one

or more computers using either an Ethernet network card or a Universal Serial Bus (USB) port. The

Cisco CVA122/122E Cable Voice Adapter supports both bidirectional data traffic and toll quality

Voice over IP (VoIP) traffic over a high-bandwidth cable connection.

Figure 1 Typical Cisco CVA122/122E Cable Voice Adapter Installation

Note The Cisco CVA122 Cable Voice Adapter conforms to the DOCSIS specifications,

which are compatible with cable systems throughout the world. The Cisco CVA122E Cable

Voice Adapter conforms to the EuroDOCSIS specifications, which are compatible with cable

systems in Europe and parts of Asia. The procedures for installing the Cisco CVA122 and

Cisco CVA122E Cable Voice Adapters are identical.

System Requirements

This section identifies the hardware requirements necessary to install and operate the

Cisco CVA122/122E Cable Voice Adapter.

CVA122/CVA122E

Cable TV Network

Power supply

USB

Ethernet

Fax

Cable TV In

V1+V2

XUSB

Phone Power

+5,-30,-56

Ethernet

•Cisco CVA122/122E Cable Voice Adapter and power supply unit

•(Optional) Uninterruptible Power Supply (UPS) for the Cisco CVA122/122E Cable Voice Adapter

•If using Ethernet connectivity:

–

Straight-through Ethernet cable (included with some packaging options for the

Cisco CVA122/122E Cable Voice Adapter)

–

Computer with an Ethernet network adapter, and TCP/IP protocols installed and configured

so an IP address is assigned automatically by a DHCP server

–

Windows 95, Windows 98, Windows 98 Second Edition, Windows NT, Windows 2000,

Windows Millennium

Note The service provider might support other types of PCs and CPE devices for network

connectivity. At the minimum, these CPE devices must meet the following requirements:

10Base T Ethernet connectivity, TCP/IP networking software, and the ability to obtain an

IP address using the DHCP protocol.

•If using USB connectivity:

–

Cisco USB driver software CD (included with the Cisco CVA122/122E Cable Voice Adapter)

–

Host-to-device USB cable (type “A” to type “B” connectors, not included)

–

Computer equipped with a USB port

–

Windows 98, Windows 98 Second Edition, Windows 2000, Windows Millennium

•Cable TV (CATV) outlet and coaxial cable

•Coaxial cable splitter (not included; required only if using the same coaxial cable for both the TV

and the Cisco CVA122/122E Cable Voice Adapter)

•(Optional) If connecting analog telephone, modem, or fax devices:

–

Ensure that all telephone, modem, or fax devices are analog devices that use a tone dial set.

–

A maximum of 2 single-line or 1 dual-line telephone, modem, or fax devices using RJ-11

connectors.

–

Telephone cables (four-wire cable with RJ-11 connectors, not included) for connecting

telephone, modem, and fax devices to the Cisco CVA122/122E Cable Voice Adapter.

–

If connecting multiple telephones, modems, or fax devices to a telephone line, be sure that the

sum of the Ringer Equivalence Number (REN) of all devices on any one voice port does not

exceed five. The REN value is a measure of the AC load that the device places on a voice line

and is typically listed on each device. If too many devices are connected on the same line, the

telephones might not ring properly, and you might have difficulty completing telephone calls.

2Installing the Cisco CVA122/122E Cable Voice Adapter

This section provides the basic information necessary to install the Cisco CVA122/122E Cable Voice

Adapter. The following figure shows the locations for connecting all cables to the connectors on the

rear panel of the Cisco CVA122/122E Cable Voice Adapter. Use Figure 2 as a guide to connecting the

required cables.

Figure 2 Cisco CVA122/122E Cable Voice Adapter

Figure 3 figure identifies the LEDs on the front panel of the Cisco CVA122/122E Cable Voice Adapter.

Figure 3 Cisco CVA122/122E Cable Voice Adapter LEDs

Warning

This warning symbol means

danger

. You are in a situation that could cause bodily

injury. Before you work on any equipment, be aware of the hazards involved with electrical

circuitry and be familiar with standard practices for preventing accidents. Review the

safety warnings in the section Translated Safety Warnings, page 34, before proceeding

with the installation.

V1+V2

XUSB

Phone Power

+5,-30,-56

Cable TV In

Ethernet

35995

Ethernet

10BaseT (RJ-45)

USB port

Phone (RJ-11)

Cable F-connector

Power receptacle

Cable Status Ethernet Status USB Status Message

35779

Physical Placement

You can install the Cisco CVA122/122E Cable Voice Adapter in the following ways:

•Placed flat on a desktop or other stable, flat surface. Do not install the Cisco CVA122/122E Cable

Voice Adapter on an uneven or soft surface.

•Placed vertically on a desktop when placed in the support stand that is shipped with the unit. See

Figure 4 for details.

Figure 4 Side-Mounting the Cisco CVA122/122E Cable Voice Adapter

Note The Cisco CVA122/122E Cable Voice Adapter can be mounted vertically on either of

its two sides, but for stability, Cisco recommends using only the orientation shown in

Figure 4, so that the coaxial cable connector and its attached cable are at the bottom.

36095

•Mounted on a wall, using the following instructions:

–

Choose a location on a suitable wall (wood, cement, or drywall) that is close to the cable TV

drop connection and all devices to be connected at the subscriber site.

–

If also mounting the Uninterruptible Power Supply (UPS) for the Cisco CVA122/122E Cable

Voice Adapter, mount it first, using the instructions that accompany the UPS, to ensure that

the wall and location are suitable for both the UPS and the cable voice adapter.

–

Drill two holes 4-1/8 in. (105 mm) apart, using Figure 5 (not to scale) as a guideline:

Figure 5 Wall-Mounting Guidelines

–

Install two 1/4 in. (6 mm) screws, extending about 1/4 in. (6mm) from the wall. (The anchors

or mounting screws should be appropriate for the type of wall being used.)

Mounting holeMounting hole

35782

4-1/8 inch (105mm)

–

Hang the Cisco CVA122/122E Cable Voice Adapter on the two screws, with the rear panel

facing down toward the ground. See Figure 6:

Figure 6 Wall-Mounting the Cisco CVA122/122E Cable Voice Adapter

Mounting

screws

Concrete, wood,

or drywall

35785

1/4 in. (0.65 cm)

Mounting

holes

Regardless of the mounting method you choose, you should follow these guidelines:

•Place the Cisco CVA122/122E Cable Voice Adapter close to the cable TV drop connection and all

devices to be connected at the subscriber site.

•The top and sides of the cable voice adapter must remain unobstructed to ensure adequate airflow

and to prevent the unit from overheating.

•Leave enough space at the rear of the cable voice adapter to allow sufficient space for the

connected cables without crimping.

Powering the Computer ON

Step 1 Power ON your computer and wait until it boots to the Windows desktop.

Connecting Power to the Cisco CVA122/122E Cable Voice Adapter

This procedure connects the Cisco CVA122/122E Cable Voice Adapter to its power supply and to the

wall outlet supplying power to the unit. The cable voice adapter is meant to be left on at all times, and

therefore, has no power switch.

Note Always use the power supply unit that is supplied with the Cisco CVA122/122E Cable

Voice Adapter. If you are using the Cisco CVA122 Uninterruptible Power Supply (UPS),

connect it to the cable voice adapter and to the power outlet, using the instructions that are

shipped with the unit.

Step 1 Connect the eight-pin connector on the power supply cable into the socket labeled “Power”

on the rear panel of Cisco CVA122/122E Cable Voice Adapter. Push the plug into the

connector until it locks securely.

Step 2 Connect the plug end of the power cord into the other end of the power supply.

Step 3 Plug the prong end of the power cord into the electrical wall outlet. Power is immediately

supplied to the cable voice adapter.

Step 4 Verify that the Message LED on the front panel of the Cisco CVA122/122E Cable Voice

Adapter starts blinking a few moments after power is applied. If this LED does not come on

or blink, check that the power supply cable is plugged into the cable voice adapter and into a

working wall outlet.

Connecting the Cisco CVA122/122E Cable Voice Adapter to the

Cable System

This procedure connects the cable voice adapter to the cable network. This is required for all

installations.

Step 1 If you are using the same outlet for both cable TV and cable network service, install a cable

splitter/directional coupler to provide separate signals for the TV and cable network signals.

(Contact your service provider for details on how to properly connect a cable splitter or

directional coupler.)

Step 2 Plug one end of the coaxial cable into the cable TV wall outlet.

Step 3 Connect the other end of the coaxial cable to the connector on the rear panel of the

Cisco CVA122/122E Cable Voice Adapter that is labeled Cable TV In.

Step 4 Hand-tighten each connector, making sure that each is finger-tight.

Step 5 The Message LED should stop blinking, and the Cable Status LED should turn on solid within

ten minutes after connecting the Cisco CVA122/122E Cable Voice Adapter to the cable TV

wall outlet. If the Cable Status LED does not come on solid after ten minutes, check that the

coaxial cable is properly plugged into the correct cable TV outlet and in to the cable voice

adapter’s Cable TV In connector.

Connecting to Telephones, Modems, or Fax Devices (optional)

If you have purchased voice services from your service provider, use the following procedure to

connect the Cisco CVA122/122E Cable Voice Adapter to telephone, modem, or fax devices. If you

have not purchased voice services, skip to the “Connecting to the Computer (Ethernet, optional)”

section on page 11.

Step 1 Obtain the telephone number assignments for each voice port from your service provider, and

label each telephone, modem, or fax device with its assigned number.

Step 2 Connect the RJ-11 end of this cable to the appropriate voice port (labeled “V1+V2” or “V2”)

on the rear panel of the Cisco CVA122/122E Cable Voice Adapter. Press the cable firmly into

the receptacle.

Step 3 Connect the other end of the cable to the telephone, modem, or fax device that has been given

the number assigned for that voice port. Press the cable firmly into the receptacle.

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