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Product Numbers: AS53-12-M-56K=
This document describes how to install 56K 12-port modem modules in Cisco AS5300 universal access servers, and includes the following sections:
Use this document with the Regulatory Compliance and Safety Information publication that shipped with the Cisco AS5300.
The 56K 12-port modem module (Figure 1) uses Rockwell's K56Flex technology. The modem can send data at up to 56 kbps and receive data at up to 33.6 kbps. However, the actual speed that you can achieve with the modem depends on the condition of your local telephone network.
Note Actual speeds vary depending on line conditions. Due to FCC limitations, speeds in the U.S. are less than 56 kbps.
The following prerequisites apply to the 56K 12-port modem module:
Follow these guidelines to ensure general safety:
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each safety warning.
Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.
Varoitus Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.
¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.
Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
Follow these guidelines when working on equipment powered by electricity:
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic printed circuit cards are improperly handled and can result in complete or intermittent failures. Always follow ESD prevention procedures when removing and replacing cards. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
The use of 56K modems introduces a new step for installing and configuring modem software. To use 56K modems, you must first install the modem code file into the Cisco AS5300 system Flash memory. The following steps provide an overview of the installation process:
1. Verify that the Cisco AS5300 is running Cisco IOS Release 11.2 (9)XA, 11.2 (10)P, or higher.
2. Install the 56K 12-port modem modules, as described in the section "Installing 56K 12-Port Modem Modules."
3. In some circumstances, download new modem code. Depending on your configuration, you can download the modem code from an external file or from the default modem code bundled with Cisco IOS software. These options are explained in "Modem Code."
4. Configure the Cisco AS5300 to support the 56K 12-port modem modules, as described in the section "Configuring 56K 12-Port Modem Modules."
You must install 56K 12-port modem modules in a Microcom carrier card, which is not included with this kit. The carrier card, shown in Figure 2, is a wide card with two slots in which you can install up to two 56K 12-port modem modules (or other supported port modules). You can install 56K 12-port modem modules with any combination of other supported port modules.
You will need the following tools:
To install the 56K 12-port modem module, refer to Figure 3 and take these steps:
Step 1 Attach an ESD-preventive wrist strap.
Step 2 Power OFF the access server.
Step 3 Remove all interface cables from the back panel of the access server.
Step 4 Remove the blank cover or modem module installed in the carrier card.
Note If the carrier card is already installed in the access server, you can install 56K 12-port modem modules in the card without removing the carrier card from the access server chassis.
Step 5 Remove the 56K 12-port modem module from the ESD-preventive shipping material.
Step 6 Slide the 56K 12-port modem module into the carrier card slot until it is seated completely.
Step 7 Tighten the two captive screws on the 56K 12-port modem module to secure it to the carrier card.
If you have questions or need assistance, refer to the section "Cisco Connection Online" at the end of this document. Otherwise, proceed to the section, "Configuring 56K 12-Port Modem Modules."
The 12-port module uses the following modem code images in a single-file format:
Modem code also resides on the access server: one version is bundled with Cisco IOS software, and another version can exist in system Flash memory. This modem code residing in the access server is a single file comprised of the modem firmware image combined with the DSP software image.
After power on, Cisco IOS software uses its bundled modem code file or the existing modem code file in system Flash memory to automatically update the DSP software and modem firmware on a given modem.
When you install a new 12-port module, Cisco IOS software examines the following versions of modem code:
Then, Cisco IOS software ensures that the system uses matching DSP software and modem firmwarewhich may include overriding the current firmware on the modem. In some circumstances you may decide to manually update the modem code after the automatic download process completes.
Because of the possibility of multiple versions of modem code and the way Cisco IOS software process these versions, Cisco suggests that you decide between the following two strategies:
To help with the decision, Figure 4 shows a hypothetical release process. We recommend that you use the modem code bundled with Cisco IOS software because it is the easier strategy and enables you to take advantage of new modem code whenever you upgrade your Cisco IOS software. You can also control the modem code by reverting to previous versions by using the copy command as discussed later.
Table 1 provides some typical scenarios that occur when you add or replace a 12-port module. Table 2 provides scenarios that occur when you upgrade Cisco IOS software or modem code.
Scenario | Update Process |
---|---|
You replace an existing 56K 12-port module with a module that contains newer modem code.1 Option 1Accept the version of modem code selected by Cisco IOS software. |
Option 2Copy the desired version of the modem code file to system Flash memory, then copy that file to the integrated modems on the 12-port module. See "Using the Modem Code from an External File,". |
You replace a V.34 12-port module with a 56K 12-port module.2 Option 1Accept the version of modem code selected by Cisco IOS software (this is the bundled version). |
Option 2Copy the desired version of modem code file to system Flash memory, then copy that file to the integrated modems on the 12-port module. See "Using the Modem Code from an External File,". |
1 Because Cisco IOS software maps modem code (either the bundled Cisco IOS version or a system Flash memory version) to a given slot/port and not the physical modem, Cisco IOS software will automatically load the modem code mapped to the previous module. For more information, see the description of mapping in Table 4.
2Cisco IOS software recognizes that the modem code (which is mapped to the previous module) as invalid, so it uses the bundled version. |
No. | Scenario | Update Process |
---|---|---|
You update Cisco IOS software, and you decide to use the version of modem code selected by Cisco IOS software. |
||
You update Cisco IOS software, and you decide not to use the modem code selected by Cisco IOS software. |
||
The modems are running a version of modem code from system Flash memory that is different than the version bundled with Cisco IOS software. You decide to revert to the bundled version. |
See "Using the Modem Code Bundled with Cisco IOS Software,". |
|
Cisco releases new modem code, which is a later version than the version currently running on the modems. You decide to use Cisco's newest modem code.2 |
1In part, Cisco IOS software bases this decision on the last copy command issued. For more details about mapping, see Table 4.
2Cisco ships new modem code on a disk packed with the 12-port module. |
Figure 5 shows a location on the release timeline where updates might take place, and Table 3 explains the resulting versions of Cisco IOS software and modem code.
1This example assumes the last copy command was copy flash modem, and Modem Code Version 1 was specified. |
Table 4 provides a list of terms and commands and a description of how they are used in the modem code update process.
Use the procedures in this section to transfer modem code from Cisco Connection Online (CCO) to the integrated modems on the 12-port module. The procedure consists of the following tasks:
You can download the single file (mcom-modem-code-x.x.x.bin) to a TFTP server on your LAN two ways:
Log in to Cisco's Software Center at the following URL to download the modem code file. You must log in as a Cisco registered user. (If you are not a registered user, note that Cisco provides modem code on a disk when are updates are necessary. This disk is shipped with the 12-port module.)
After downloading to your desktop computer, you must transfer it to a TFTP server on your network using an FTP application.
Alternatively, you can access Cisco at http://www.cisco.com, login, and take the following path to the file:
Take the following steps to download the modem code file from Cisco's FTP server using an FTP client application. These steps assume that you want to download both the modem firmware and the DSP software.
Note The directory path leading to the 56K images on cco.cisco.com is subject to change without notice. If you cannot access the files using an FTP application, use Download Method 1.
Step 2 Enter your CCO registered username and password (for example, harry and letmein):
Step 3 Specify the directory that holds the Modem Code file, which is /cisco/access/5300:
Step 4 View the contents of the directory with the ls command:
Step 5 Specify a binary image transfer:
Step 6 Copy the modem code file from the server to your local environment with the get command. The filename is mcom-modem-code-3.1.30.bin.
The following example downloads the modem code file:
Step 7 Quit your terminal session:
Step 8 Verify that you successfully transferred the modem code file to your local directory:
Step 9 If you have not already done so, transfer this file to a local TFTP server that your Cisco AS5300 can access.
Note In some cases, Cisco ships modem software on a disk. To use this software, first upload the
software to your TFTP server, then download the software to the modem using the method described
in the next section "Copying the
Modem Code File from a Local TFTP Server to the Modems."
If you loaded Cisco IOS software from a feature pack CD using Router Software Loader (RSL), note
that the CD contains a TFTP server program for PCs using Windows 95. Run the server program
from the directory where you installed the RSL program. Remember to set the Root directory to the
directory where the AS5300 56K modem code is located. RSL is also available on CCO in the
software library in the Access Products section.
The procedure for copying the modem code file from your local TFTP server to the access server system Flash memory is a two-step process. First, transfer the code to the access server. Then, transfer the code to the modems.
These two steps are performed only once. After you copy the modem code file into system Flash memory for the first time and map that file to a specific modem using the copy flash modem command, you do not have to perform these steps again. Because the DSP software runs from modem RAM, the Cisco IOS software must automatically copy the DSP software to each modem each time the access server power cycles.
Step 2 Copy the modem code file to the modems by entering the copy flash modem Privileged EXEC command.
Note On the display, notice that the command copies the concatenated modem code file, mcom-modem-code-3.1.30.bin. When the DSP software and modem firmware download is complete, the display reports the modem firmware component, MNPClass10K56flexModemRev3.1.30/85, was downloaded to the modems.
If you want to verify that the DSP software and modem firmware copied to the modems, use the show modem version command. In this example, modems 2/12 through 2/23 are loaded with the modem controller firmware and DSP software:
Now the modems are equipped with code. The modems are configured to transmit at speeds up to 56 kbps. Each time the access server is power cycled, Cisco IOS software automatically loads the modems with the modem code in system Flash memory. If you erase the modem code file from system Flash memory, the Cisco IOS default modem code (that is, the bundled modem code) will be automatically downloaded to the modem.
If you already have a version of modem code in the Flash memory on your access server, and you upgrade to a Cisco IOS release that includes newer modem firmware, only the modems that are mapped to the bundled Cisco IOS version are updated. In order to set the modem firmware mapping to the firmware version bundled with Cisco IOS software, enter the following command:
Note This command does not affect any existing modem code that resides in system Flash memory in case you later want to revert to it. If you decide to delete the code from system Flash memory, remember that all files in system Flash memory will be deleted, therefore save and restore any important files (for example, the Cisco IOS software image).
As a result of the copy system:/ucode/filename modem (or copy ios-bundled modem) command, future Cisco IOS upgrades will potentially result in the mapping of new Cisco IOS bundled firmware to the modems. (If the new Cisco IOS image contains the same modem code as the old one, no new code will be downloaded to the modems.)
Note To determine the version of modem code bundled with your Cisco IOS software, refer to the Cisco IOS release notes shipped with the chassis.
During the modem code download process, you may receive an error message if the download fails.
This section describes how to configure the 56K 12-port modem modules.
If you are experienced with Cisco IOS software, refer to the "Configuration Example" section at the end of the following task tables for a working configuration example. Or take the steps described in the following task tables to configure the access server:
1PPP = Point-to-Point Protocol.
2CHAP = Challenge Handshake Authentication Protocol. 3PAP = Password Authentication Protocol. |
The following example shows the output of the show config command for a system configured with 56K 12-port modem modules. If you are experienced with Cisco IOS software, you might find this a useful reference for configuration.
This concludes the procedure for configuring the access server for use with the 56K 12-port modem module. If you have questions or need assistance, refer to the section "Cisco Connection Online" at the end of this document.
The equipment described in this document generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco's installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
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:
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Note If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact Cisco's Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.
Posted: Sun Jan 19 10:53:52 PST 2003
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