This article comprises the Read Me for the Apple Modem Updater version 1.3.5. This software was released by Apple on March 29, 1999 and is available for downloading from Apple Software Updates Online. Please use the following URL to access the article directly: http://asu.info.apple.com/swupdates.nsf/artnum/n11315

If you have questions as to when to install available updaters, the following Knowledge Base article can assist you: Article 58174: " iMac: When to Install Available Updaters ".

To search for other software updates specifically related to the iMac please use this fast search: iMac Search

Description :
The Apple Modem Updater will update all modems in the iMac and the PowerBook G3 Series computers (both the K56flex only modem shipping in earlier PowerBook G3 Series and the V.90 compliant modem currently shipping in the PowerBook G3 Series).

Note: The PowerBook G3 Series (Bronze keyboard) does not need this update because it is already installed in these computers from the factory.

This software bundle contains:

• New modem firmware for the internal 56K modem
• New modem scripts (CCL's)
• New PowerBook G3 Series Modem extension.

• Modem power-off issue: Resolves a modem power down issue (resulting in battery drain during PowerBook G3 sleep), if the PowerBook G3 Series computer is manually put to sleep before the modem has been shut down for 30 seconds.
• Modem popping sound: Resolves an audible pop when the modem is being powered on or off.

This updater supports the internal modem which came with your PowerBook G3 Series or iMac computer.

This software bundle contains:

• new modem firmware for the internal 56K modem
• new modem scripts (CCL's)
• new PowerBook G3 Series Modem extension

The modem scripts have been revised to properly reflect the new V.90 connection speeds, and to resolve a European blind dialing issue.

The new PowerBook G3 Series Modem extension resolves several known issues. These include:

Modem power-off issue: Resolves a modem power down issue (resulting in battery drain during PowerBook G3 sleep), if the PowerBook G3 Series computer is manually put to sleep before the modem has been shut down for 30 seconds.

Modem 'popping' sound: Resolves an audible pop when the modem is being powered on or off.

This document also contains several references to articles in the Knowledge Base that discuss modem connectivity issues. These articles are recommended reading for better a understanding of 56K modem technology.

What The Apple Modem Updater Does

The Apple Modem Updater will update all modems in the iMac and the PowerBook G3 Series computers (both the K56flex only modem shipping in earlier PowerBook G3 Series and the V.90 compliant modem currently shipping in the PowerBook G3 Series). The updater installs version 2.2 of the Rockwell firmware which contains the most recent versions of both the V.90 and the K56flex protocols. The modems can use either the K56flex or V.90 protocols and will automatically negotiate with the service provider to use the appropriate one.

After you have updated the modem you may notice that the connection speed that is reported when you first establish a connection may be lower than it was prior to the upgrade, however the modem throughput will be at least as good and often better than before the upgrade. Throughput is the measure of how quickly a certain amount of data is transferred from one modem to another. It is important to remember that the connection speed that is reported is only the initial connection speed. The modems will adjust their communications speed as line conditions require. A faster connection speed does not necessarily indicate a higher throughput, factors like resending data due to noise on the phone lines will lower overall throughput.

This is discussed in more detail in:

• article 30734, " V.90 Protocol: Connectivity Discussion "
• article 24482, " 56Kbps Modems: Getting The Fastest Connection "

Before updating your modem, make sure the modem and modem port are not in use. Turn answering off in fax or other communications programs. Log off any open Internet/modem connections. (Disconnecting the phone line will force any active modem connections to be closed.)

Important: If you are updating a modem in a PowerBook, connect the PowerBook to the AC adapter to guarantee an uninterrupted supply of power to the computer.

Important: Do not cancel the installation process once you start updating; canceling the upgrade process will damage the modem. This modem updater may take up to five minutes to complete.

To update your modem:

1. Double click on the Apple Modem Updater icon.

2. Click Start.

Status messages appear as the updater locates the modem and checks for the current firmware version and type of modem.

3. Click Done when the update is complete.

4. For PowerBook G3 Series users:

• Open the folder For PowerBook G3 Users
• Drag copy the files PowerBook G3 Internal 56K and PowerBook G3 Int56K (v.34 Only) into the Modem Scripts folder, located in the Extensions folder within the System Folder.
• Click OK to replace any existing files.
• Open the Modem control panel and select: PowerBook G3 Internal 56K
• Drag copy the file PowerBook G3 Series Modem into the Extensions folder within the System Folder.
• Click OK to replace any existing file.

• Open the folder For iMac Users
• Drag copy the files iMac Internal 56K and iMac Internal 56K (V.34 Only) into the Modem Scripts folder, located in the Extensions folder within the System Folder.
• Click OK to replace any existing files.
• Open the Modem control panel and select: iMac Internal 56K

5. If you have previously installed a V.34 modem script, open the Modem control panel and select:

PowerBook G3 Internal 56K (for PowerBook G3 Series users)

iMac Internal 56K (for iMac users)

Note : The V.34 script forces the V.90 modem to connect at V.34 speeds and was recommended if you had problems connecting in V.90 modem. If V.90 connection reliability issues still exist after updating the modem, reselect the V.34 modem script. See article 22234, " iMac: V.34 Modem Script ".

If you experience a problem with the Apple Modem Updater, shut down your computer for 40 seconds to reset the modem. Restarting the computer will not reset the modem. Then begin the modem firmware upgrade process again.

Future Modem Software

New firmware updates, modem scripts, and modem drivers may be released for 56K modems until the technology stabilizes. For more information on V.90 modem upgrade information, see Apple's support web site: http://www.apple.com/support .