NI PXI-1409 is a monochrome image acquisition device for PXI systems in the IMAQ PXI/PCI-1409 family. NI describes the 1409 family as high-quality, high-accuracy monochrome image acquisition devices, with the PXI-1409 specifically representing the PXI bus variant rather than the PCI version. This distinction matters when matching the module to the host platform, because the same family documentation also covers the separate PCI-1409 model. Source: https://download.ni.com/support/manuals/322811b.pdf ; https://docs-be.ni.com/bundle/372152a/raw/resource/enus/372152a.pdf
The module supports several monochrome video acquisition modes, including RS-170/NTSC, CCIR/PAL, VGA 640 × 480 at 60 Hz, and programmable variable scan. NI specifies four monochrome video inputs, a 10-bit ADC providing 1024 gray levels, and sampling from 2 MHz to 40 MHz when externally clocked. The internal pixel clock range is 11 MHz to 40 MHz, and typical frequency response is rated at 30 MHz at -3 dB. Source: https://download.ni.com/support/manuals/322811b.pdf
For signal connection and control, the PXI-1409 provides a front-panel BNC connection for VIDEO0 and a 68-pin VHDCI connector for video, sync, trigger, and control signals. NI also documents four general-purpose control lines, four external I/O lines, and four video sources. Acquired images can be stored in onboard frame memory or transferred directly to system memory, supporting different acquisition and processing architectures. Source: https://download.ni.com/support/manuals/322811b.pdf
