The National Instruments PCI-232I/4 Serial Interface Board, designated by part number 777854-04, provides robust communication capabilities with connected instruments over serial ports. This interface board features four connections located on a single panel via 10-position modular jacks, while optional cable accessories allow for compatibility with conventional DB-9 or DB-25 connectors. Utilizing RS-232 serial protocols, the PCI-232I/4 ensures reliable data transfer over distances of up to 50 feet without interruption. The board supports the PCI bus and includes optical isolation, enhancing its performance in electrically noisy environments. The PCI-232I/4 operates at a required power of +5 VDC, drawing a typical current of 500 mA, with a maximum tolerance of 750 mA. With an impressive data transfer rate of up to 115.2 kb/sec, it also incorporates a 64-byte FIFO buffer for efficient data handling. Enhanced with ESD protection on data lines up to +15 kV, this board is designed for durability and reliability. The PCI-232I/4 is supported by NI-Serial software, compatible with Windows operating systems including 8, 7, Vista, and XP, and features built-in device drivers along with diagnostic and configuration utilities. Although the PCI-232I/4 has been marked as obsolete by National Instruments, it remains available for purchase and repair through Apex Waves.

For more technical details, users can refer to the user and maintenance manuals available for download. Please contact a sales representative for pricing information.