Rockwell 725-6880 Isa 8 Bit Modem 2400 Baud Model Sm 24Hn R

Product Description

The Rockwell 725-6880 is an internal modem card that utilizes the 8-bit ISA bus, a common interface for expansion cards in personal computers during the late 1980s and early 1990s. This modem was designed primarily for data communication, offering a speed of 2400 Baud (bits per second), which was standard for many dial-up services and bulletin board systems (BBS) of that era. Its internal design meant it occupied an ISA slot within the computer, providing a compact and integrated solution for telecommunications. As an 8-bit card, it was compatible with a wide range of older PC and XT-class machines, as well as early AT-class computers. The primary function of the 725-6880 was to facilitate asynchronous serial communication over standard analog telephone lines. Users would connect the modem to a phone jack using an RJ-11 cable, and then use communication software to dial into remote systems, exchange files, or participate in online discussions. While lacking advanced features like fax capabilities or higher data speeds found in later modems, the Rockwell 725-6880 served its purpose effectively for basic data transfer needs. It required appropriate drivers for the operating system to function, typically MS-DOS or early versions of Windows. This modem represents a foundational piece of networking hardware that enabled early computer users to connect beyond their local machines.