Play”, or if you have “Plug N Play” settings, set them to “on.” Next, from the infor- mation you noted in Step 2, find the interrupt selection for the IRQ your modem is using (some BIOS don’t allow individual selection of interrupts to ISA, Plug-N-Play, or PCI). Set this interrupt to Plug-N-Play. This can be called ICU (ISA Configura- tion Utility), ICU/PCI, ISA, or PNP depending on your BIOS version and manu- facturer. Do not set this interrupt to “PCI” only or to “Legacy ISA”.

If you do not have any free interrupts available, you will have to disable a COM port currently in use. See the section of this manual titled “Do This First”.

Uninstalling the Modem

If you are uninstalling the modem in Windows in order to upgrade software or rein- stall the modem as part of a troubleshooting process, it is important to follow these directions carefully. Following these instructions out of sequence can cause your sys- tem to cease responding to the mouse, the keyboard, or both.

1.In Control Panel, double-click the System icon. Click the Device Manager tab. In the list of device groups, double-click the Modems icon. Click to select the listing for your modem and then click the Remove button.

2.In Control Panel double-click the Modems icon. If your modem is listed, click once on the icon next to the modem and then click Remove.. If the New Hardware Found panel comes up, click Cancel. (Your modem should not be listed in the Modems section after you have deleted it from the Device Manager. If it is, this could be a sign that your Plug-N-Play settings are not correct. See “Does Not Install” for information about Plug-N-Play.)

3.Close all open programs and return to the Windows desktop. On the Start menu, click Find, then click Files or Folders and search for the files listed below. Type in the name and extension of each and click Find. Once you find each of the files listed, click the file name to select it then on the File menu choose Delete. (Do not delete these files from your modem installation diskette. You will need your diskette to reinstall the modem).

ltcom.vxd ltwave.inf

ltmodem.vxd ltdft.inf

ltvcd.vxd ltdsvd.dll

ltmodem.sys ltports.inf

If you cannot find a particular file, it usually means it was not installed.

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Actiontec electronic 56K ISA Lite manual Uninstalling the Modem
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56K ISA Lite specifications

The Actiontec electronic 56K ISA Lite modem is a pivotal technology that played an essential role in the evolution of internet connectivity, especially during the late 1990s and early 2000s. As a dial-up modem, it facilitated access to the internet at a time when broadband was not widely available. This device utilized the ISA (Industry Standard Architecture) bus, which was popular for connecting hardware components to the motherboard in personal computers.

One of the hallmark features of the Actiontec 56K ISA Lite is its compliance with the V.90 standard, enabling it to achieve download speeds of up to 56 Kbps. This capability marked a significant improvement over earlier modems that typically operated at lower speeds. The modem's design focused on providing a reliable and stable connection, which was crucial for homes and offices relying on dial-up services.

Another key technology behind the Actiontec 56K ISA Lite is its use of a data compression technique called V.42bis. This technology optimizes the transfer of data, allowing it to reduce file sizes and enhance the efficiency of internet connections. Coupled with error correction capabilities, V.42bis helps in ensuring that data transmitted over the phone lines remains accurate and intact, further improving the user's experience.

In terms of characteristics, the ISA Lite modem was relatively easy to install and integrate into existing computer systems of the time. It supported a straightforward plug-and-play functionality, making it accessible to users with varying levels of technical know-how. The modem also came equipped with diagnostic LEDs that provided real-time feedback on its operation, such as connection status and data transmission activity.

The Actiontec electronic 56K ISA Lite was built with a compact design, fitting well into the ISA slots of most PCs. It was compatible with various operating systems, allowing users to connect to the internet regardless of the software they were using.

Though now considered outdated due to the advent of high-speed broadband connections, the Actiontec 56K ISA Lite modem represents a significant milestone in telecommunications history. Its features and technologies helped pave the way for the internet accessibility that we enjoy today, shaping the digital landscape for future generations.
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