National Instruments 778991-01 Digital Waveform Device.

The part number 778991-01 from National Instruments is the identifying part number for the PCI-6561 Digital Waveform Device. This PCI device features 16 data channels supporting both the acquisition and generation of waveforms, with channels offering single data rate (SDR) and double data rate (DDR) modes. This flexibility is critical for applications that demand high-speed data transfers and accurate timing synchronization. For data acquisition channels, it features a programmable function interface (PFI), specifically PFI <0..3>. While for the generation channels, it offers DDC CLK OUT and PFI channels for precise timing control and flexible signal management, crucial for complex data acquisition and generation tasks.
 
This 778991-01 Digital Waveform Device is designed to consume a minimum of 1.7 A at +3.3 VDC, 1.1 A at +5 VDC, 0.4 A at +12 VDC, and 0.05 A at -12 VDC, with a maximum total power requirement of 16.5 W. Its physical dimensions are 12.6 cm × 35.5 cm (4.96 in × 13.9 in), and it weighs 410 g (14.5 oz). It is equipped with an SMB jack I/O connector for an external sample clock, triggers, and an exported sample clock. This digital waveform device uses Synchronization and Memory Core (SMC) technology that shares onboard memory with a size of 2 Mbit, 16 Mbit, and 128 Mbit per channel.

This module is fully compliant with many safety and electromagnetic standards, thus making it useful for measurement, control, and laboratory use, as well as limiting electrical interference and thus maintaining the efficiency of the module. It supports application software such as LabVIEW, Lab Windows™/CVI™, Measurement Studio, Microsoft Visual C/C++, and NET (C# and VB.NET). It is designed to operate at an ambient temperature of 0 degrees Celsius to 45 degrees Celsius with a relative  operating humidity of 10% to 90%, noncondensing, that meets the IEC 60068-2-56 standard, and a suitable storage temperature of -20 degrees Celsius to 70 degrees Celsius that meets the IEC 60068-2-2 standard with a relative storage humidity of 5% to 95%, noncondensing. It can be mounted at an altitude of 2000 meters above sea level, at a maximum temperature of 25 degrees Celsius, and has a pollution degree of 2.