Rockwell 92-254-16997 Isa 8 Bit Modem 2400 Baud Model Sm 24Hn R

Product Description

The Rockwell 92-254-16997 is an internal modem card specifically designed for the 8-bit ISA (Industry Standard Architecture) bus, a common expansion interface in early personal computers. The model designation 'SM 24Hn R' indicates its specific product line and capabilities, with '2400 baud' clearly stating its maximum data transfer rate. At 2400 bits per second, this modem was typical for systems in the late 1980s and early 1990s, providing essential connectivity for tasks like email, bulletin board systems (BBS), and early forms of online services. As an 8-bit ISA card, it was designed to fit into the narrower ISA slots and communicate using the 8-bit data path, ensuring compatibility with a vast number of PC and PC/AT compatible machines. Installation would involve inserting the card into an available slot and configuring its hardware resources, typically through jumpers on the card itself, to set the IRQ (Interrupt Request) and I/O (Input/Output) addresses. Proper configuration was vital to avoid conflicts with other hardware components in the system. The primary function of the Rockwell SM 24Hn R modem was to modulate and demodulate signals, enabling digital data from the computer to be transmitted over analog telephone lines and vice versa. While its 2400 baud speed is slow by modern standards, it was a crucial piece of technology that allowed computers to communicate with each other remotely, facilitating the exchange of information and paving the way for the more advanced communication technologies that followed.