The National Instruments part number 777368-01 corresponds to the PC-DIO-24 Digital I/O Board, a cost-effective solution designed for ISA computers providing 24-bit parallel connectivity. This board is compatible with both TTL and CMOS signaling, offering flexibility for various digital input and output applications. Featuring dedicated 24-bit PPI chips, the 777368-01 board ensures efficient management of its digital signal channels. Its plug-and-play design enables straightforward configuration, eliminating the need for external card management and ensuring compatibility with multiple operating systems.

The 777368-01 supports integration with a wide range of microprocessors through programmable interfaces, functioning in both uni-directional and bi-directional modes. Communication for input and output operations is handled via a standard 50-pin male ribbon-cable connector, facilitating 24 channels suitable for diverse application scenarios. Transfer rates are contingent upon numerous factors, including system performance, programming environment (such as NI-DAQ or register-level programming), and the efficiency of the programming language used. For instance, programs employing handshaking or data transfer may yield higher transfer rates, while tasks requiring sustained data throughput, such as pattern generation or waveform generation, may achieve constant rates between 1 to 10 kbytes/s. The digital board operates with a power requirement of +5 VDC (±10%), consuming 0.45 A typically, with a maximum of 1 A. It boasts an absolute maximum input voltage rating of -0.5 to +5.5 V with respect to ground. With a maximum transfer rate of 50 kbytes/s when used with NI-DAQ software, the 777368-01 Digital I/O Board stands as a versatile choice for various industrial automation and control needs.