1-8 CHAPTER 1: INTRODUCTION

IBM PC or Compatible Requirements

An IBM-compatible PC must have the following:

A 386, 486, or Pentiumâ processor

An available serial communications port

For sustained performance at higher data rates (57.6 Kbps and 115.2 Kbps), it is recommended that your IBM or IBM- compatible PC serial COM port be equipped with a 16C550 UART (universal asynchronous receiver/transmitter). To determine what UART is installed in your PC, run the Microsoftâ Diagnostic Program (msd) from the DOS prompt. In addition, for reliable high-speed serial port performance in the Microsoft Windows environment, a TurboComä driver for Windows, which replaces the standard Microsoft Windows COM driver, is included with the 3Com Impact digital modem.

MS-DOSâor IBM PC DOS 3.1 or later operating system

640 Kilobytes of conventional memory

Microsoft Windows 3.1 or later (optional)

A hard disk drive with 1 MB of free space

Apple Macintosh Requirements

An Apple Macintosh computer must be a Macintosh Plus or later model. It must also have the following:

An available serial communications port

The highest possible serial port data rate with most Macintosh computers is 57.6 Kbps. Some later Macintosh models (AV and Power Macintoshä) have data rates of up to

115.2 Kbps. 3Com recommends that you use the 8-pin serial communications port on your Macintosh.

System 7 or later operating system

A hard disk drive with 1 MB of free space

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3Com DIGITAL MODEM manual IBM PC or Compatible Requirements, Apple Macintosh Requirements

DIGITAL MODEM specifications

The 3Com Digital Modem represents a significant advancement in communication technology, designed to enhance data transmission over telephone lines. This modem is a part of a lineage of 3Com products that focus on delivering robust networking solutions, tailored for both personal and professional use.

One of the main features of the 3Com Digital Modem is its high-speed data transfer capabilities. With speeds reaching up to 56 Kbps, it allows users to send and receive large amounts of data quickly, which is essential for applications that require efficient data exchange. This speed ensures smoother internet browsing, quicker downloads, and more reliable connections for applications such as video conferencing and online gaming.

The modem is equipped with advanced error correction technologies, including V.42 and V.42bis protocols. These protocols help to maintain data integrity by detecting and correcting errors during transmission. This results in a more reliable connection, reducing the likelihood of dropped calls or corrupted data transfers, which can be particularly frustrating for users engaged in critical business communications.

Another notable characteristic of the 3Com Digital Modem is its compatibility with various operating systems, making it versatile for different users. It supports Windows, Mac, and various other platforms, ensuring that it can be integrated seamlessly into existing systems without the need for extensive configuration. This plug-and-play capability simplifies installation for users, allowing them to get connected quickly and efficiently.

The modem also incorporates an innovative design that facilitates improved heat dissipation, ensuring optimal performance during prolonged use. Its compact form factor makes it suitable for both home and office environments, allowing for easy setup without consuming excessive desk space.

In addition to these features, the 3Com Digital Modem boasts strong security protocols, ensuring that users' data is protected against unauthorized access while being transmitted. This is particularly important in today’s digital landscape, where data breaches and cyber threats are prevalent.

Overall, the 3Com Digital Modem combines speed, reliability, and security, making it a valuable asset for anyone looking to enhance their connectivity experience. Its robust feature set and user-friendly design cater to a broad audience, from casual users to business professionals, reflecting the evolution of modem technology in a digital-first world.