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Cisco AS5300 Module Installation Guide
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MICA Modem Cards
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Table of ContentsMICA Modem CardsMICA Cards Cisco IOS Software Requirements Removing and Installing Cards and Modules Upgrading Modem Code
Important Modem Upgrade Commands Choosing an Update Strategy Modem Code Scenarios Displaying Modem Code Versions Upgrading Modem Code from the Cisco CCO TFTP Server
Copy the Modem Code File from Local TFTP Server to Modems Upgrading Modem Code from Diskettes Download Failure Reasons and Recommended Actions Monitoring, Polling, and Troubleshooting Modems
MICA Modem CardsThis chapter describes the 6- and 12-port MICA modem modules and cards used in the Cisco AS5300 universal access servers. Cisco's MICA DSP modem cards provide a high performing, highly flexible, and standards-compliant access platform. This chapter includes the following sections: Note Actual speeds vary depending on line conditions. Due to FCC limitations, speeds in the U.S. are less than 56 kbps. MICA CardsYou can install up to two MICA cards in any unpopulated slot of the access server chassis. Figure 3-1 MICA Card Each MICA card includes 10 slots in which you can install 6- or 12-port modem modules. 6-Port Module CardsEach 6-port module includes 6 modems. Therefore, in a fully populated MICA card, you can have up to 60 modems. Or, in a fully populated access server chassis, you can have up to 120 modems. Ten of these modem modules can be configured on each of two cards for a total of 60 ports per card or a total of 120 ports per chassis. The 6-port modules cannot be used as standalone cards and they cannot be installed in Microcom cards. Figure 3-2 MICA Card with 6-Port Modem Modules 12-Port Module CardsEach 12-port module includes 12 modems. Therefore, in a fully populated MICA card, you can have up to 120 ports. Or, in a fully populated access server chassis, you can have up to 240 modems. Ten of these modem modules can be configured on each of two cards for a total of 120 ports per card or a total of 240 ports per chassis. The 12-port modules cannot be used as standalone cards and they cannot be installed in Microcom cards. Figure 3-3 MICA Card with 12-Port Modem Modules Identifying Modem ModulesModem modules are plugged into SIMM modules on the carrier card. Use Table 3-1 or Table 3-2 and Figure 3-4 to identify a specific modem module.
Figure 3-4 SIMM Module Numbering Cisco IOS Software RequirementsThe modem modules require the following Cisco IOS software: Removing and Installing Cards and ModulesIf you skipped the chapter, "Safety Warnings, Recommendations, and Tools Required," (in the beginning of this guide), go back to that chapter and read it now. This chapter provides important safety information and a list of tools you need to successfully remove and install cards without damaging your access server. |
Step 2 Power OFF the access server. If using a DC-powered unit, refer to Figure 3-5 and complete steps a to d.
(a). Loosen the three locking screws for the negative, positive, and ground connectors on the DC power supply terminal block
(b). Remove the -48 VDC wire from the terminal block negative connector (-) .
(c). Remove the +48 VDC wire from the terminal block positive connector (+) .
(d). Remove the safety ground (green wire) from the terminal block ground connector.
Step 3 On the rear panel of the access server, locate the MICA card.
Step 4 Loosen the two captive screws that secure the card to the chassis until each screw is free of the chassis.
Step 5 Insert the feature card removal tool so that the slots in each arm of the tool are behind the shoulder of each captive screw, as shown in Figure 3-6, and carefully pull the removal tool toward you until the feature card slides free of the chassis.
Step 6 Set the removed feature card aside on an ESD-preventive mat.
Step 7 Continue with one of the following sections:
To remove a modem module, follow these steps:
Step 2 Orient the card so that the modem module socket faces away from you (see Figure 3-7).
Step 3 On the card, locate the 6- or 12-port modem module to be removed.
Step 4 Gently push the two clips away from the edges of the modem modules, as shown in Figure 3-8.
Step 5 Push the two socket latches away from the modem module, as shown in Figure 3-9.
Step 6 Remove the modem module from its socket, as shown in Figure 3-10.
Step 7 Place the module on an ESD mat.
Step 8 Continue with the next section, "Installing Modem Modules" for procedures on installing a new modem module.
To install a 6- or 12-port modem module, follow these steps:
Step 2 Seat the modem module in the socket and press its edges onto the standoffs, as shown in Figure 3-11.
Step 3 Gently push down the outer edges of the modem module until the two clips lock into place, as shown in Figure 3-12.
Step 4 Continue with the following section, "Installing a MICA Card," to replace the card in the chassis.
Step 2 Slide the card into the slot until it touches the backplane connector.
Step 3 Align the captive screws with their holes, and then seat the card completely.
Step 4 Tighten the two captive screws (Figure 3-13) to secure the card to the chassis.
Step 5 If the access server is configured with fewer than three cards, make sure that a blank slot cover is installed over each open slot to ensure proper airflow inside the chassis.
Step 6 Reconnect the AC power cord. Or, if using DC power, refer to Figure 3-14, and then complete steps a to d.
(a). Insert the safety ground (green wire) into the terminal block ground connector and tighten the locking screw. Ensure that no bare wire is exposed.
(b). Insert the +48 VDC wire into the terminal block positive connector (+) and tighten the locking screw. Ensure that no bare wire is exposed.
(c). Insert the -48 VDC wire into the terminal block negative connector (-) and tighten the locking screw. Ensure that no bare wire is exposed.
(d). Make sure the power supply cord is secured to the cable strain-relief clamps on the DC power supply with cable ties.
Step 7 Power ON the access server.
The internal power supply fan should power on.
Step 8 Continue with the following section, "Upgrading Modem Code."
Modem code is a generic term applied to a modem code file, which is also called modem code for MICA modems.
With new systems, Cisco loads a Cisco IOS software-compatible version of modem code and copies the version to the installed modem modules. A map of the version(s) of modem code copied to the modem RAM for each modem module is stored in nonvolatile random access memory (NVRAM) so that it is retained over power cycles.
Note You do not have to take any action to use the pre-installed version of modem code with new systems.
You can acquire new modem code in several ways:
This section describes how to upgrade modem code on your access server modems by:
1. Understanding the modem code scenarios possible for your access server.
2. Choosing an upgrade strategy.
3. Finding out the modem code version installed on your access server.
You can obtain modem code in one of two ways:
There are several commands you use to upgrade modem code. For examples on using the commands, see "Upgrading Modem Code from the Cisco CCO TFTP Server," "Upgrading Modem Code from Diskettes," and "Using Modem Code Bundled with Cisco IOS Software," later in this chapter for details.
Because of multiple versions of modem code and the way Cisco IOS software processes these versions, Cisco suggests that you choose one of the following two strategies:
To help with the decision, Figure 3-15 shows a hypothetical release process. Using the modem code bundled with Cisco IOS software is the easier strategy and enables you to take advantage of new modem code whenever you upgrade your Cisco IOS software. You can control the modem code by using the copy command as discussed later.
Table 3-3 provides scenarios that can occur when you upgrade Cisco IOS software or modem code.
| No. | Scenario | Update Process |
|---|---|---|
| 1 | ||
| 2 | You update Cisco IOS software, and you decide to use the version of modem code selected by Cisco IOS software. |
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| 3 | You update Cisco IOS software, and you decide not to use the modem code selected by Cisco IOS software. |
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| 4 | 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. |
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| 5 | 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.3 |
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| 1To find out the version of modem in your system, use the show modem mapping command. This command displays the versions bundled with Cisco IOS software (copied into Flash memory) and running on the modems.
2In part, Cisco IOS software bases this decision on the last copy command issued. For more details about mapping, see Table 3-5. 3Cisco might ship this modem code on a diskette packed with the spare card. |
Figure 3-16 shows a location on the release timeline where updates might take place, and Table 3-4 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 3-5 provides a list of terms and commands and a description of how they are used in the modem code update process.
| 1This command is supported in Cisco IOS Releases 11.2(11)P and 11.3(2)T. |
Use the show modem mapping command to list the versions of modem code running on the modem modules, residing in system Flash, and bundled with Cisco IOS software. This will help you decide if you need to change the version running on the modems.
Upgrading modem code from the Cisco CCO TFTP server is a two-step process:
Note Cisco IOS software contains bundled modem code, which might differ from the version of modem code you download. For more information about how Cisco IOS software processes multiple modem code versions, refer to the earlier sections "Choosing an Update Strategy" and "Modem Code Scenarios" for details.
You can download software from the Cisco Systems CCO TFTP server using an Internet browser or using an FTP application. Both procedures are described below.
Note To download modem code from CCO to a PC and then upgrade the modem code to an access server connected to your PC via an Ethernet hub, you need to set up a TFTP application on your PC, establish a HyperTerminal session, and make sure your PC and access server are correctly connected and talking before downloading the modem code from CCO. All these procedures are described in "Upgrading Modem Code from Diskettes," later in this chapter.
Step 2 Bring up Cisco's Software Center home page at following URL (this is subject to change without notice):
http://www.cisco.com/public/sw-center/
Step 3 Click Access Products (under Cisco Software Products) to open the Access Products window.
Step 4 Click Cisco AS5300 Series Software.
Step 5 Click the modem code you want and download it to your workstation or PC. For example, to download modem code for MICA modems, click Download Modem Portware Images.
Step 6 Click the modem code file you want to download, and then follow the remaining download instructions. If you are downloading the modem code file to a PC, make sure you download it to the c:\tftpboot directory; otherwise, the download process will not work.
Step 7 When the modem code is downloaded to your workstation, transfer the file to a TFTP server in your LAN using a terminal emulation software application.
Step 8 When the modem code is downloaded to your workstation, transfer the file to a TFTP server somewhere in your LAN using a terminal emulation software application.
Note The directory path leading to the modem code files on cco.cisco.com is subject to change without notice. If you cannot access the files using an FTP application, try the Cisco Systems URL http://www.cisco.com/public/sw-center/.
Step 2 Enter your CCO registered username and password (for example, harry and letmein):
Step 3 Specify the directory path that holds the modem firmware you want to download. For example, the directory path for the Cisco AS5300 modem code 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 firmware files from the access server to your local environment with the get command.
The following example downloads a MICA modem code file:
Step 7 Quit your terminal session:
Step 8 Verify you successfully transferred the files to your local directory:
Step 9 Transfer these files to a local TFTP or RCP server that your access server or router can access.
The procedure for copying the modem code file from your local TFTP server to the modems is a two-step process. First, transfer the modem code to the access server's Flash memory. Then, transfer the modem code to the modems.
These two steps are performed only once. After you copy the modem code file into Flash memory for the first time, you should not have to perform these steps again. Because the modem code runs from the modems themselves, the Cisco IOS software automatically copies the modem code to each modem each time the access server power cycles.
Step 2 Enter the access server enable mode (the prompt is displayed as 5300#):
Step 3 Check the files in the access server system Flash memory:
Step 4 Download the modem code file from TFTP server into the access server Flash memory using the copy tftp flash command. After you enter the command, you are prompted for the download destination and the remote host name as requested by the system software.
Step 5 Verify the file has been copied into the access server system Flash memory:
Step 6 Copy the modem code file from the access server system Flash memory to the modems by entering the copy flash modem command: