SMA, 68-pin VHDCI, 16-Channel Digital I/O, 6-Channel Control I/O, 5 V Terminal Block—The SMA-2165 connects to NI devices with a matching VHCDI connector such as PCI-5421 Waveform Generator Device, PXI-5421 PXI Waveform Generator, NI-6585 Digital I/O Adapter Module for FlexRIO, and other compatible devices for testing and debugging. Each digital I/O, programmable function interface (PFI), and clock channel on your connected NI device corresponds to a specific pin on the SMA-2165. You can make connections to the SMA-2165 using an SMA coaxial cable or by soldering directly to the inline circuits.