The NI PXIe-4496 is part of NI’s sound and vibration hardware portfolio and is presented by NI as a PXI Express module for dynamic signal acquisition. On the official NI product page, it is described as a “24-BIT, 204.8kS/s, 16 Input, 2 Gain, TEDS, AC-Coupled” module, making it suitable for multi-channel vibration and acoustic measurement tasks that require synchronized acquisition across many sensors.
According to the NI 449x specifications, the PXIe-4496 provides 16 simultaneously sampled analog input channels with 24-bit ADCs and a sample-rate range from 100 S/s to 204.8 kS/s. The same specification document lists AC-only input coupling for the NI 4496/4498 devices, with an AC coupling cutoff of 0.5 Hz (-3 dB).
NI documentation also shows that the PXIe-4496 supports two gain settings, 0 dB and 20 dB, corresponding to full-scale input ranges of ±10.0 V and ±1.00 V. For sensor interfacing, the module includes software-selectable IEPE excitation on a per-channel basis, specified as 0 or 4 mA ±10% with 24 V compliance.
The official user manual further documents per-channel gain selection, per-channel IEPE excitation, open/short detect, and TEDS support. The manual’s front-panel information indicates InfiniBand 4x connectors, which are used to route the module’s measurement channels.
