The National Instruments PCI-4551 is a high-performance Dynamic Signal Acquisition device specifically designed for sound and vibration applications. This device features the essential hardware and software needed for precise measurements from microphones and a variety of transducers across a wide dynamic range. The PCI-4551 supports both analog and digital triggering, ensuring versatile application possibilities.

With two analog inputs capable of a sampling rate of 204.8 kS/s and two analog outputs with an update rate of 51.2 kS/s, this model also includes eight digital I/O channels. The onboard analog and digital filters mitigate aliasing effects, enhancing measurement accuracy. The configuration process requires user-defined settings for both bus and data acquisition parameters, including the PCI-4551 base memory address, interrupt channel, and analog input modes, all of which can be modified through NI application-level software such as VirtualBench, LabWindows/CVI, LabVIEW, or ComponentWorks, as well as driver-level software like NI-DAQ.

For optimal performance, National Instruments recommends the use of their optional accessories, including the SHC50-68 digital cable, RTSI cables, and shielded, DIN rail-mountable 68-pin connector blocks, while cautioning against custom cabling due to the complex nature of high-density connectors and the maintenance of signal integrity. Although the PCI-4551 has been marked as obsolete, it remains available for purchase and repair through Apex Waves. This device is fully compliant with the PCI Local Bus Specification Revision 2.0 and features a 16-bit input resolution. The PCI-4551 dimensions are 4.19 x 12.28 x 0.73 inches, and it comes with a warranty of 2 to 3 years, along with downloadable user and maintenance manuals. For pricing information, please contact a sales representative.