- Teledyne SP Devices offers the ADQDSU series PXI module to provide a solid state drive (SSD) storage solution for high-speed data recording for applications such as radar, lidar, etc.
- This solution supports direct data transfer between the digitizer and the storage device via the backplane using peer-to-peer (P2P) streaming.
- The ADQDSU module in combination with the FWDSU software provides peer-to-peer data streaming up to 6.8 GB/s.
The main advantage of peer-to-peer over conventional methods is that it significantly reduces the CPU and DRAM workload on the PXIe controller.
The integrated peer-to-peer (P2P) functionality allows data to be recorded at maximum throughput. Data is transferred directly from the digitizer to the storage device via a PCI Express switch inside the chassis.
P2P streaming eliminates host involvement unlike conventional solutions that require data to be copied via the host’s RAM (PXIe controller). With peer-to-peer operation, the CPU and RAM can be used for other tasks, such as data post-processing, data display, etc.
The ADQDSU module offers 8 or 32 terabytes of storage in a single 3U PXI Express slot. Multiple units can be combined in the same chassis to increase the total storage capacity and allow for long-term signal recording. Switching from one storage unit to another is done automatically in the background, without user intervention. This guarantees continuous recording without any data loss.
The ADQDSU is compatible with several digitizers and other infrastructure/hardware available from Teledyne SP Devices. The storage unit and digitizers use the same application programming interface (API). This allows for plug-and-play implementation and integration. It is compatible with all major brands of PXI Express chassis, including those from NI and Adlink.
The ADQDSU module and associated FWDSU firmware can transmit data to multiple drives simultaneously to increase throughput. Inter-disk transfer is also supported to ensure continuous, uninterrupted recording of large amounts of data.