4/14/2023 0 Comments Lxi expert 12 softwareA bus with high bandwidth is able to transmit more data in a given period than a bus with low bandwidth. Bandwidth measures the rate at which data is sent across the bus, typically in MB/s (106 bytes per second). When considering the technical merits of alternative buses, bandwidth and latency are two of the most important bus characteristics. Specific bus technologies discussed below include GPIB, USB, PCI, PCI Express, and Ethernet/LAN/LXI.įirst, it is important to outline the relevant performance criteria for instrument control buses, in order to set a baseline for evaluation and comparison. This paper presents a head-to-head comparison of the most popular instrumentation buses, so that test engineers can make informed decisions when choosing the bus and platform technologies to meet their application-specific needs. The challenge for today’s test engineer is not to choose a single bus or platform on which to standardize every single application, but to choose a bus or platform appropriate for a specific application or even a specific part of an application. In reality, it is most likely that two or more bus technologies will continue to coexist in future test and measurement systems because each bus has its own strengths. Some test and measurement vendors and industry pundits have claimed that one of these buses, by itself, represents a solution for all instrumentation needs. Today, USB, PCI Express, and Ethernet/LAN have gained attention as attractive communication options for instrument control.
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