... interfaces easily available to your test system such as USB, LAN, and GPIB so that you can quickly add new measurement capability to the system that is not available in the rack such as a USB-based ... automated test systems NI works with a multitude of sources as well as members of the NI Automated Test Customer Advisory Board (AT-CAB) to capture these best practices The AT-CAB community is a ... instrument backplanes/buses –PXI, GPIB, USB, and LAN Because each of these buses has at least some advantages and limitations (as discussed in chapter of the Software -Defined Test Fundamentals guide) ,...