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Cisco CVA122 Hardware Installation Manual
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Cisco CVA122 Hardware Installation Manual

Cisco CVA122 Hardware Installation Manual

Cable voice adapter
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Cisco CVA122/CVA122E
Cable Voice Adapter
Hardware Installation Guide
May 2001
Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel:
408 526-4000
800 553-NETS (6387)
Fax: 408 526-4100
Text Part Number: OL-0799-02

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  • Page 1 Cisco CVA122/CVA122E Cable Voice Adapter Hardware Installation Guide May 2001 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Text Part Number: OL-0799-02...
  • Page 2 You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures: •...

  • Page 3: Table Of Contents

    Documentation Feedback Obtaining Technical Assistance Cisco.com xiii Technical Assistance Center xiii Contacting TAC by Using the Cisco TAC Website xiii Contacting TAC by Telephone xiii Product Overview C H A P T E R Cisco CVA122/CVA122E Cable Voice Adapter Description...
  • Page 4 C H A P T E R Cisco CVA122/CVA122E Cable Voice Adapter Installation Checklist Physical Placement Placing the Cisco CVA122/CVA122E Cable Voice Adapter on a Desktop Side Mounting the Cisco CVA122/CVA122E Cable Voice Adapter Wall Mounting the Cisco CVA122/CVA122E Cable Voice Adapter...
  • Page 5 Ethernet Connector and Cabling Power Connector USB Connector and Cabling Voice Port Connectors Regulatory Compliance and Safety Information A P P E N D I X Safety Information General Safety Subscriber Safety Regulatory Statements FCC Requirements Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 6 Translated Safety Warnings Warning Definition Lightning Activity Warning Installation Warning Product Disposal Warning Jewelry Removal Warning Incorrect Connection Warning Ring Signal Generator Warning TN and IT Power Warning I N D E X Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 7: Preface

    Purpose This guide covers the physical installation of the Cisco CVA122/CVA122E Cable Voice Adapter. These procedures include site preparation, the physical placement of the cable voice adapter in an appropriate location, the cabling required for the power, Ethernet, USB, voice, and cable connections, and verification of the installation at the cable voice adapter’s initial power-on.

  • Page 8: Organization

    However, CLI access might be required to configure the cable voice adapter and to bring it to full operability. See the Cisco CVA122 Cable Voice Adapter Features and Cisco CVA122E Cable Voice Adapter Features guides for instructions on configuring the cable voice adapter for network operation.

  • Page 9: Safety Information Referral Warning

    Antes de instalar, funcionar com, ou prestar assistência ao sistema, leia o Guia de Preparação e Segurança do Local. Este guia contém informações de segurança importantes que deve conhecer antes de trabalhar com o sistema. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (04/2001)

  • Page 10: Related Documentation

    Related Documentation Refer to the following Cisco documents for related information. The documents can be found online at Cisco.com or on the Documentation CD-ROM. You can also order printed copies of most current documents.

  • Page 11: Cisco Ios Publications

    MIB information is available on CCO at ftp://ftp.cisco.com/pub/mibs. Obtaining Documentation The following sections provide sources for obtaining documentation from Cisco Systems. World Wide Web You can access the most current Cisco documentation on the World Wide Web at the following sites: http://www.cisco.com • http://www-china.cisco.com •...

  • Page 12: Documentation Cd-Rom

    800 553-NETS(6387). Documentation Feedback If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.

  • Page 13: Cisco.com

    P4—You need information or assistance on Cisco product capabilities, product installation, or basic • product configuration. In each of the above cases, use the Cisco TAC website to quickly find answers to your questions. To register for Cisco.com, go to the following website: http://www.cisco.com/register/ If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users...
  • Page 14 P1—Your production network is down, causing a critical impact to business operations if service is • not restored quickly. No workaround is available. P2—Your production network is severely degraded, affecting significant aspects of your business • operations. No workaround is available. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (04/2001)

  • Page 15: Chapter 1 Product Overview

    • Introduction The Cisco CVA122 Cable Voice Adapter and Cisco CVA122E Cable Voice Adapter function at the most basic level as a cable modem—a modulator/demodulator that provides high-speed network access on the cable television system to residential subscribers. The two models are based on The Cisco CVA122 Cable Voice Adapter is based on the Data-Over-Cable Service Interface •...

  • Page 16: Bridging Operations

    Tips available at the CableLabs web site at http://www.cablelabs.com. The Cisco CVA122/CVA122E Cable Voice Adapter uses its cable interface to connect to the CMTS over the Hybrid/Fiber Coax (HFC) cable system. A personal computer (PC) connects to the Cisco CVA122/CVA122E Cable Voice Adapter through either the Ethernet or USB interface.

  • Page 17: Routing Operations

    DOCSIS connectivity that provides both high-speed Internet data access and VoIP connectivity. The cable voice adapter ships from the factory with a Cisco IOS software image stored in nonvolatile Flash memory that supports DOCSIS-compliant bridging data operations. Based on the feature licenses your company purchased, other Cisco IOS images can be downloaded from Cisco Connection Online (CCO).

  • Page 18: Upgrading The Rom Monitor Software

    If the file transfer is interrupted, or if the new ROMMON software becomes corrupted, the primary ROMMON is still available to boot the Cisco CVA122/CVA122E Cable Voice Adapter and load the Cisco IOS software image. The upgrade of the secondary ROMMON can then be attempted again.

  • Page 19: Initial Power-On Sequence

    The Cisco CVA122/CVA122E Cable Voice Adapter downloads the DOCSIS configuration Note file each time it is powered on, but it downloads the Cisco IOS image and Cisco IOS configuration file only when needed. A new configuration file or image can be downloaded whenever necessary, such as when the cable service offers new services or subscribers upgrade their services.
  • Page 20 Class of Service (CoS), type of services to support, and other parameters. Cisco provides tools to help automate the creation of configuration files.
  • Page 21 If the DOCSIS configuration file specifies that the cable voice adapter must download another Cisco IOS image and a Cisco IOS configuration file, the cable voice adapter uses TFTP to download the image and configuration files into its local memory. It then installs the new Cisco IOS image and runs the configuration file.

  • Page 22: Provisioning Prerequisites

    The CMTS system administrator or appropriate personnel must have specified the policy • parameters for the Cisco CVA122/CVA122E Cable Voice Adapter and all computers and other CPE devices to be supported at the subscriber site. See Cisco’s Network Registrar (CNR) product documentation for more information.

  • Page 23: Data Operations

    Cisco CVA122/CVA122E Cable Voice Adapter Description Data Operations This section provides an overview of how data is transmitted to and from the Cisco CVA122/CVA122E Cable Voice Adapter across the cable system’s HFC network. Figure 1-3 illustrates a typical broadband data cable system, showing the network path between the Cisco CVA122/CVA122E Cable Voice Adapter and the CMTS headend equipment (Cisco uBR7200 series universal broadband router or other DOCSIS-compliant CMTS).

  • Page 24: Ol-0799-02 (05/2001)

    384 kbps upstream. The Cisco CVA122/CVA122E Cable Voice Adapter receives the upstream data from the CPE devices to which it is connected. It modulates this data for transmission on the coaxial cable system to the CMTS.

  • Page 25: Features

    The Cisco CVA122/CVA122E Cable Voice Adapter supports multiple devices per voice line, however, the total REN value for all devices must not exceed the maximum number given in Appendix A, “Technical Specifications.”...

  • Page 26: Led Descriptions

    Chapter 1 Product Overview Features Figure 1-4 depicts the front of the Cisco CVA122/CVA122E Cable Voice Adapter. Figure 1-5 shows the rear of the unit. Figure 1-4 Cisco CVA122/CVA122E Cable Voice Adapter Front View Figure 1-5 Cisco CVA122/CVA122E Cable Voice Adapter Rear View...

  • Page 27: Data Ports

    Function Cable Status Green On = RF link is up, and the Cisco CVA122 power-on and self-test diagnostics have completed successfully, the system image has been booted, and the system is operational. Blink = Cisco CVA122 is searching for a downstream frequency or has lost downstream lock.

  • Page 28: Voice Ports

    Note bridging hub. The Cisco CVA122/CVA122E Cable Voice Adapter supports up to 254 PCs (and other CPE devices) in bridging mode. No maximum limit exists in routing mode. However, the CMTS can impose its own limitation on the maximum number of PCs and CPE devices.

  • Page 29: Power Supply

    Table A-1 in Appendix A, “Technical Specifications,” for the AC-input power supply power specifications, including input voltage and operating frequency ranges. The Cisco CVA122/CVA122E Cable Voice Adapter does not contain a power switch. After the cable system technician installs, connects, powers on, and initializes the unit, it is intended to remain connected to the broadband network when operating normally.
  • Page 30 Chapter 1 Product Overview Features Cisco CVA122/CVA122E Hardware Installation Guide 1-16 OL-0799-02 (05/2001)

  • Page 31: Chapter 2 Preparing For Installation

    This chapter recommends general safety guidelines to follow and identifies requirements to meet before going to a subscriber site to install a Cisco CVA122/CVA122E Cable Voice Adapter. For safety and regulatory information, see Appendix C, “Regulatory Compliance and Safety Information.”...

  • Page 32: Electrical

    Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent system failures. The Cisco CVA122/CVA122E Cable Voice Adapter consists of a printed circuit board that is housed in a shielded enclosure. Electromagnetic interference (EMI) shielding and connectors are integral components of the enclosure.

  • Page 33: Site Requirements

    1 and 10 megohm (Mohm). Site Requirements Before going to a subscriber site to install the Cisco CVA122/CVA122E Cable Voice Adapter, verify that the following have been done: Ensure that a coaxial cable connection is run from the cable TV trunk to the subscriber building or •...
  • Page 34 PC from the applicable system administrator, along with the appropriate gateway and DNS information. • If supporting VoIP devices, obtain the phone numbers and/or IP addresses that the service provider has assigned to each of the voice ports on the Cisco CVA122/CVA122E Cable Voice Adapter. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 35: Environmental

    Power The Cisco CVA122/CVA122E Cable Voice Adapter does not contain a power switch. After the unit is installed and powered on, it is intended to remain connected to the network and CPE devices during normal operations.

  • Page 36: Interference Considerations

    Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal • drivers and receivers in the Cisco CVA122/CVA122E Cable Voice Adapter, and can even create an electrical hazard by conducting power surges through lines and into equipment. (Review the safety warnings in the “Electrical”...

  • Page 37: Distance Limitations

    CMTS. This distance can also be defined in relation to the speed of light through the transmission network as being less than 2 msec from the CMTS to the Cisco CVA122/CVA122E Cable Voice Adapter and back again.

  • Page 38: Required Tools And Equipment

    Preparing for Installation Required Tools and Equipment Required Tools and Equipment Assemble the tools and equipment needed to install the Cisco CVA122/CVA122E Cable Voice Adapter at subscriber sites. Table 2-2 lists the recommended items that Cisco does not provide. Table 2-2...
  • Page 39 Based on the number of subscriber sites you are scheduled to install, ensure that you have sufficient Cisco-provided bulk box packages. After you have completed installation, give each subscriber a copy of the Quick Start, Cisco CVA122/CVA122E Cable Voice Adapter Subscriber Setup card, along with any documentation your company provides.
  • Page 40 Chapter 2 Preparing for Installation Required Tools and Equipment Cisco CVA122/CVA122E Hardware Installation Guide 2-10 OL-0799-02 (05/2001)

  • Page 41: Chapter 3 Installing The Cisco Cva122/Cva122E Cable Voice Adapter

    Installing the Cisco CVA122/CVA122E Cable Voice Adapter This chapter contains the following sections that provide instructions on installing the Cisco CVA122/CVA122E Cable Voice Adapter, initial power-on, and verifying the installation: Cisco CVA122/CVA122E Cable Voice Adapter Installation Checklist • Physical Placement •...
  • Page 42 If placed on a desktop, the Cisco CVA122/CVA122E Cable Voice Adapter Note can be placed flat or it can be placed vertically in its support stand, as desired.
  • Page 43 Computer (Ethernet)” section on page 3-14 • To directly connect one PC to the Cisco CVA122/CVA122E Cable Voice Adapter, connect the unit’s Ethernet port directly to the PC’s Ethernet adapter, using a straight-through 10BaseT Ethernet cable. To connect additional PCs and other CPE devices at the site, use a crossover •...

  • Page 44: Physical Placement

    • Physical Placement The Cisco CVA122/CVA122E Cable Voice Adapter can be placed flat on a desktop, placed on its side using the supplied support stand, or mounted on a wall. See the following sections for more information. Placing the Cisco CVA122/CVA122E Cable Voice Adapter on a Desktop The Cisco CVA122/CVA122E Cable Voice Adapter can be placed flat on a hard, stable surface such as a desktop or table top.

  • Page 45: Side Mounting The Cisco Cva122/Cva122E Cable Voice Adapter

    Side Mounting the Cisco CVA122/CVA122E Cable Voice Adapter The Cisco CVA122/CVA122E Cable Voice Adapter can be placed on its side on a desktop or other stable, flat surface, using the support stand that is shipped with the unit. To mount the cable voice adapter on its side, use the following procedure: Decide which side should be placed on the stand.
  • Page 46 Side Mounting the Cisco CVA122/CVA122E Cable Voice Adapter Note For stability, Cisco recommends that the Cisco CVA122/CVA122E Cable Voice Adapter be placed as shown in Figure 3-1, so that the coaxial cable connector and its attached cable are at the bottom.

  • Page 47: Wall Mounting The Cisco Cva122/Cva122E Cable Voice Adapter

    • space for the connected cables without crimping. Wall Mounting the Cisco CVA122/CVA122E Cable Voice Adapter To mount the Cisco CVA122/CVA122E Cable Voice Adapter on a cement, wood, or drywall, do the following: Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 48 Step 4 from the wall. (The anchors or mounting screws should be appropriate for the type of wall being used.) Hang the Cisco CVA122/CVA122E Cable Voice Adapter on the two screws, with the rear panel facing Step 5 down toward the ground. (See Figure 3-4.)

  • Page 49: Verifying Power Requirements

    The AC-input power supply uses a power factor corrector that allows the Cisco CVA122/CVA122E Cable Voice Adapter to operate in any country where the input voltage is between 100 and 240 VAC, and 50 or 60 Hz.

  • Page 50: Connecting Power

    See “Verifying Power Requirements” section on page 3-9 to verify that the external power source is Step 1 adequate for the cable voice adapter. Turn on power to all other devices that will be connected to the Cisco CVA122/CVA122E Cable Voice Step 2 Adapter (such as a PC, Ethernet hub, or USB hub).

  • Page 51: Connecting To The Cable System

    Locate the CATV wall outlet to be used for the Cisco CVA122/CVA122E Cable Voice Adapter. Step 1 If you want to use the same CATV wall outlet for both the Cisco CVA122/CVA122E Cable Voice Step 2 Adapter and cable TV, contact your service provider for instructions on installing a cable splitter/directional coupler to the cable outlet.

  • Page 52: Connecting To Telephones Or Fax Devices

    Connecting to Telephones or Fax Devices If you have purchased voice services from your service provider, use the following procedure to connect the Cisco CVA122/CVA122E Cable Voice Adapter to telephone, modem, or FAX devices at the site. Cisco CVA122/CVA122E Hardware Installation Guide...
  • Page 53 Step 3 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/CVA122E Cable Voice Adapter. Press the cable firmly into the receptacle. Connect the other end of the cable to the telephone, modem, or FAX device that has been given the Step 4 number assigned for that voice port.

  • Page 54: Connecting To The Computer (Ethernet)

    Use a crossover Ethernet cable (10Base T with RJ-45 connectors) to connect the • Cisco CVA122/CVA122E Cable Voice Adapter to an Ethernet hub. (If your hub has an uplink port, you might be able to use a straight-through cable to connect the hub to the Cisco CVA122/CVA122E Cable Voice Adapter.)

  • Page 55: Connecting To The Computer (Usb)

    Step 4 Verify that the Ethernet LED on the front panel of the Cisco CVA122/CVA122E Cable Voice Adapter turns on. If this LED does not light, check that the Ethernet cable is plugged in to the correct RJ-45 connector on your computer and that the computer is turned on. Also verify that the other end of the cable is completely plugged into the Ethernet port on the cable voice adapter.

  • Page 56: Power-On And Initialization Sequence

    Step 3 completing the download procedure (which could take up to 10 minutes if downloading a new Cisco IOS image as well as a configuration file), the Message LED turns off and the Cable Status LED turns on solid. Cisco CVA122/CVA122E Hardware Installation Guide...

  • Page 57: Verifying Installation

    Microsoft Internet Explorer or Netscape Communicator. Step 2 Enter a URL of your choice in your web browser. If a URL is not known, use http://www.cisco.com to connect to the Cisco Connection Online (CCO) web site. Watch the Ethernet or USB LED on the front of the cable voice adapter blink as data is transmitted on Step 3 the link.

  • Page 58: Voip Telephone Connection

    Chapter 3 Installing the Cisco CVA122/CVA122E Cable Voice Adapter Verifying Installation Using an in-line attenuator, add 3 to 6 dB of attenuation between the cable voice adapter and the CATV Step 6 cable input. The addition of 3 to 6 dB of attenuation simulates the variation found in a cable Note network over time and in relation to temperature.

  • Page 59: Chapter 4 Troubleshooting

    The LEDs on the front panel reveal operational status and help you determine problem areas. See Figure 4-1 for the layout of the LEDs on the Cisco CVA122/CVA122E Cable Voice Adapter’s front panel. See Table 1-1 on page 1-13 for a description of these LEDs.

  • Page 60: Initialization And Self-Test Problems

    Message Initialization and Self-Test Problems When the Cisco CVA122/CVA122E Cable Voice Adapter first powers on, the following occurs: The cable voice adapter runs its self-test and diagnostic procedures. All LEDs briefly light and then turn off when self-test and diagnostic procedures are successful. The procedures ensure that all components are functioning.
  • Page 61 If the main memory initialization routine successfully completes, all LEDs turn off. If all self-tests passed, the cable voice adapter boots the Cisco IOS image stored in its Flash memory. The Message LED blinks during the boot process and continues blinking until it finishes booting the Cisco IOS image;...

  • Page 62: Troubleshooting Subsystems

    • PC Subsystem VoIP Subsystem • Figure 4-2 on the next page provides a general troubleshooting flowchart. Table 4-2 can help you correlate LED behavior with possible problems, and suggested courses of actions. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 63 Check the personal computer Get computer Can you Can you Troubleshoot and/or network view the view the personal I/F card tech web page? web page? computer assistance Contact your Installation system successful administrator Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 64 1. If using the CVA120 Series Universal Power Supply (UPS), the UPS contains two LEDs that give additional information about the power supply to the Cisco CVA122/CVA122E Cable Voice Adapter. See the documentation accompanying the UPS for details. Cisco CVA122/CVA122E Hardware Installation Guide...

  • Page 65: Coaxial Cable Subsystem

    Troubleshooting Troubleshooting Subsystems Coaxial Cable Subsystem For proper operation the Cisco CVA122/CVA122E Cable Voice Adapter must be able to establish a connection with the service provider’s CMTS. There are many conditions inherent to coaxial cable that can inhibit this connection:...

  • Page 66: Rf And Digital Subsystem

    Cisco CVA122/CVA122E Cable Voice Adapter using an Ethernet connection. Step 1 Is the Ethernet LED on the front panel of the Cisco CVA122/CVA122E Cable Voice Adapter turned on? If the Ethernet LED does not light, do the following until the LED begins to light: Verify that the Cisco CVA122/CVA122E Cable Voice Adapter and computer are both powered on.

  • Page 67: Usb Subsystem

    If not, install Windows 98, Windows Millennium, or Windows 2000 on this computer. Windows 95 and Windows NT do not support networking through the USB interface. Is the USB LED on the front panel of the Cisco CVA122/CVA122E Cable Voice Adapter on? Step 2...

  • Page 68: Pc Subsystem

    Cisco CVA120 series USB driver software CD. PC Subsystem To isolate a problem with a PC that is connected to the Cisco CVA122/CVA122E Cable Voice Adapter: Can you access a web page using the web browser installed on the computer?
  • Page 69 The computer might have more than one dialup adapter. Be sure to select the right Note dialup adapter. If the subscriber does not intend to use America Online, remove both these components from the Network components list box: Cisco CVA122/CVA122E Hardware Installation Guide 4-11 OL-0799-02 (05/2001)

  • Page 70: Voip Subsystem

    UID (cable MAC address) is already in the billing system and configured for use with voice, ask to have the cable voice adapter refreshed with the correct voice configuration. Does the Cisco IOS image being used on the Cisco CVA122/CVA122E Cable Voice Adapter support Step 3...

  • Page 71: Further Contacts

    Is the telephone, modem, or FAX device an analog (FXS) device that uses a tone pushbutton dial set? Step 7 The Cisco CVA122/CVA122E Cable Voice Adapter supports only analog devices that use tone dialing. Step 8 Is the sum of the RENs of all devices on any one telephone line less than five? If you have plugged multiple telephone, modem, or FAX devices into the same telephone line to use as extensions, the sum of their Ringer Equivalence Numbers (REN) cannot exceed five.
  • Page 72 Chapter 4 Troubleshooting Further Contacts Cisco CVA122/CVA122E Hardware Installation Guide 4-14 OL-0799-02 (05/2001)

  • Page 73: Appendix

    • • Data Specifications Voice Specifications • Physical, Power, and Environmental Specifications Table A-1 lists the Cisco CVA122/CVA122E Cable Voice Adapter physical specifications and power requirements. Table A-1 Cisco CVA122/CVA122E Cable Voice Adapter Physical Specifications Description Specification Dimensions (H x W x D) 1.6 x 6.75 x 8.25 in.
  • Page 74 10 to 200 Hz, 0.0005 g (1 oct./min.) Vibration, nonoperating 10 to 100 Hz, 0.0065 g (1 oct./min.) Software requirement Cisco CVA122/CVA122E Cable Voice Adapter software—Cisco IOS Release 12.2(1)XA or higher Agency approvals Safety: CSA 950-95 (Third Edition), IEC 950 (Second Edition with Amendments 1, 2, 3, and 4), EN60950:1922 (with Amendments 1, 2, 3, 4, and 11), AS/NZS 3260:1966 (with Amendments 1, 2, 3, and 4), TS001:1997.

  • Page 75: Data Specifications

    Appendix A Technical Specifications Data Specifications Data Specifications Table A-2 lists the specifications for the data transmitted on the Cisco CVA122/CVA122E Cable Voice Adapter’s cable interface. Table A-2 Cisco CVA122/CVA122E Cable Voice Adapter Data Specifications Description Downstream Values Upstream Values...
  • Page 76 DES decryption: DOCSIS Baseline Privacy (BPI), 40-bit and 56-bit DES encryption, as controlled by the headend and configuration files. Cisco IOS images must contain encryption software at both the CMTS and the Note Cisco CVA120 Series Cable Voice Adapter. Both units must be enabled and properly configured to support encryption.

  • Page 77: Voice Specifications

    Appendix A Technical Specifications Voice Specifications Voice Specifications Table A-3 lists the specifications for the voice ports on the Cisco CVA122/CVA122E Cable Voice Adapter. Table A-3 Cisco CVA122/CVA122E Cable Voice Adapter Voice Specifications Metric Value Loss (between DCS and BTI gateway) Nominal: 4 dB ±.5 dB (off hook)
  • Page 78 Appendix A Technical Specifications Voice Specifications Table A-3 Cisco CVA122/CVA122E Cable Voice Adapter Voice Specifications (continued) Metric Value Hybrid balance: Echo Return Loss (ERL) > 26 dB (standard test line) > 14 dB (station off hook) > 21 dB (standard test line) >...

  • Page 79: Appendix

    Refer to the following sections for more information. Coaxial Connector and Cable Specifications The Cisco CVA122/CVA122E Cable Voice Adapter connects to the HFC cable system with a type-F, right-angle, PCB-mount connector manufactured by Amp (model number 531-40047). The body is die cast out of zinc, with a tin-lead plating.

  • Page 80: Ethernet Connector And Cabling

    1 dB in signal quality for digital data might completely disrupt service to a cable network user. Cisco recommends that you use a headend-grade coaxial cable or a quad-shield coaxial cable with a minimum of 60% + 40% braid and double foil insulation to connect the cable modem cards to the HFC network.
  • Page 81 Straight-through—The colored wires are in the same sequence at both ends of the cable. • • Crossover—The first (far left) colored wire at one end of the cable is the third colored wire at the other end of the cable. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 82: Power Connector

    +5VDC USB Connector and Cabling The USB port on the Cisco CVA122/CVA122E Cable Voice Adapter uses the standard device (type “B”) receptacle required by the Universal Serial Bus Specification Revision 1.1. Table B-3 lists the signals used on the USB port.

  • Page 83: Voice Port Connectors

    Implementers Forum, Inc. web site at http://www.usb.org. Voice Port Connectors This section contains pinout and connection information for the two voice ports on the Cisco CVA122/CVA122E Cable Voice Adapter. The voice ports use standard voice connectors (six pins with RJ-11 connectors) and straight-through four-wire cables. Note...
  • Page 84 TIP connection for voice port V2. Pin 9 on the dual connector maps to pin 3 on a standard 6-pin RJ-11. Not connected. Not connected. 13, 14 GND Ground pins are connected to board ground. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 85: Appendix

    Do not remove covers. No operator serviceable parts are inside. Refer servicing to qualified • personnel. Do not attempt to service or configure the Cisco CVA122/CVA122E Cable Voice Adapter yourself. • Only authorized personnel should service or configure the unit. If the unit requires service, contact your service provider.

  • Page 86: Regulatory Statements

    • Translated Safety Warnings This section repeats in multiple languages the warnings found in the documentation related to the Cisco CVA122/CVA122E Cable Voice Adapter: Warning Definition Warning This warning symbol means danger. You are in a situation that could cause bodily injury.

  • Page 87: Lightning Activity Warning

    Do not work on the system or connect or disconnect cables during periods of lightning Warning activity. Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het systeem te werken Waarschuwing of kabels aan te sluiten of te ontkoppelen. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 88: Installation Warning

    Consultare le istruzioni di installazione prima di collegare il sistema all’alimentatore. Advarsel Les installasjonsinstruksjonene før systemet kobles til strømkilden. Aviso Leia as instruções de instalação antes de ligar o sistema à sua fonte de energia. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 89: Product Disposal Warning

    Deitar fora este produto em conformidade com todas as leis e regulamentos nacionais. ¡Advertencia! Al deshacerse por completo de este producto debe seguir todas las leyes y reglamentos nacionales. Varning! Vid deponering hanteras produkten enligt gällande lagar och bestämmelser. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 90: Jewelry Removal Warning

    (incluindo anéis, fios e relógios). Os objectos metálicos aquecerão em contacto com a corrente e em contacto com a ligação à terra, podendo causar queimaduras graves ou ficarem soldados aos terminais. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 91: Incorrect Connection Warning

    La conexión incorrecta de este equipo, o del equipo conectado, a una toma o receptáculo de tipo general podría resultar en una situación peligrosa. Varning! Felaktig koppling av denna eller ansluten utrustning till ett universaluttag kan orsaka riskfylld situation. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 92: Ring Signal Generator Warning

    Não toque nos fios de porta (condutores) RJ-11 (telefone), nos condutores do cabo conectado à porta RJ-11 ou na placa de circuito associada quando a campainha estiver activa. A campainha é activada pela entrada de uma chamada analógica. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

  • Page 93: Tn And It Power Warning

    Este equipamento foi criado para ligações a sistemas de corrente TN e IT. ¡Advertencia! Este equipo se ha diseñado para ser conectado a sistemas de alimentación tipo TN o Varning! Denna utrustning har konstruerats för anslutning till elkraftssystem av TN- och IT-typ. Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 94 Appendix C Regulatory Compliance and Safety Information Translated Safety Warnings Cisco CVA122/CVA122E Hardware Installation Guide C-10 OL-0799-02 (05/2001)
  • Page 95 (EMP), avoiding symbol, defined EMI, shielding coaxial cable Ethernet LED condition of subsystem for troubleshooting configuration files Cisco IOS figures DOCSIS 1-4, 1-8 bridging configuration connections front view of the router 1-12 Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 96 3-11, 3-12 provisioning Cable Status description description 1-12 overview (figure) Ethernet power-on sequence Message prerequisites lightning storm, safety during RJ-45 MAX CPE parameter cable maximum CPE devices ROMMON Message LED upgrading routing capabilities Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 97 Cisco IOS images upgrading the ROM Monitor software upstream transmissions description 1-10 frequency range 1-10 USB LED Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)
  • Page 98 Index Cisco CVA122/CVA122E Hardware Installation Guide OL-0799-02 (05/2001)

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