The National Instruments GPIB-140A/2 is a high-performance GPIB extender that significantly enhances the connectivity capabilities of GPIB systems. Utilizing fiber-optic technology, this model extends communication ranges up to 2 kilometers, overcoming the standard IEEE 488 limitation of 20 meters. With the GPIB-140A/2, users can seamlessly integrate two separate and remotely located GPIB systems to function as a single, cohesive unit. This solution allows for the connection of up to 28 devices on the same bus, exceeding the typical limitation of 15 devices without compromising performance. For even greater distances, multiple extenders can be connected in series, while star configurations are also supported for additional flexibility in device connectivity.

The GPIB-140A/2 operates in two data transmission modes: buffered and unbuffered. In buffered mode, FIFO buffers enhance data transfer rates, while unbuffered mode ensures each bit of data is confirmed before completion of the transmission. This device is factory configured for unbuffered operation, but users can easily switch to buffered mode using the accessible DIP switches. With a compact design, measuring 3.5 x 5.65 x 1.62 inches and weighing 0.55 pounds, the GPIB-140A/2 is ideal for integration into various setups. It also comes with a comprehensive warranty of 2 to 3 years and includes user and maintenance manuals available for download. For pricing information, please contact a National Instruments sales representative.