The National Instruments PCI-232/8 Serial Interface Board (Part Number: 777642-08) is an advanced solution for asynchronous communication with instruments via eight serial ports. This plug-and-play device facilitates communication over distances of up to 50 feet and is equipped with a 68-pin SCSI connector that can be adapted to eight male DB9 connectors using an appropriate cable. The PCI-232/8 operates without isolation and features an ESD protection capability for data lines, with a protection level of up to ±15 kV. Designed for high performance, this interface consumes a typical current of 100 mA, peaking at 180 mA, powered by +5 VDC. For its ±12 VDC power supply, the device draws between 80 mA and 800 mA.

The PCI-232/8 supports a variety of operating systems, including Windows 2000, NT, XP, ME, and 9x, ensuring compatibility and ease of installation through auto-configuration. This device adopts the NI-Serial driver software and can be programmed within application development environments such as LabVIEW and LabWindows/CVI. Dimensions of the board are 4.2 inches by 5.7 inches, with operational and storage temperature ranges of 0°C to 55°C and -20°C to 70°C respectively, alongside humidity specifications of 10% to 90% RH for operation and 5% to 95% RH for storage. The PCI-232/8 complies with various electrical safety standards including IEC 61010-1, EN 61010-1, UL 61010-1, and CSA 61010-1. Though classified as obsolete by National Instruments, the PCI-232/8 remains available for purchase and repair through Apex Waves.