Computer/Embedded Technology


Pentek accelerates real-time recording

29 July 2020 Computer/Embedded Technology

Pentek has introduced a new addition to the Talon series of recorders, the Model RTR 2757 4U 19-inch rackmount recorder. This new recorder complements Pentek’s Quartz RFSoC products that stream digitised wide-bandwidth signals across 100 gigabit Ethernet. The RTR 2757 is capable of capturing these streams in real time at rates as high as 12,5 GBps.

The recorder was designed with performance and rugged environments in mind. It includes up to 122 TB of NVMe (Non-Volatile Memory Express) storage, using high-performance NVME U.2 drives in a RAID0 configuration to provide extremely high-speed real-time recording. Drives are front-panel removable via eight individual drive trays. The independent operating system drive is also removable via the front panel. This architecture improves the recording speed by fifty percent over previous generations of Talon recorders.

The industrial grade, 4U rackmount chassis of the RTR 2757 houses a dual Xeon server class motherboard. It is optimised for cooling and ruggedised to operate in challenging environments. A single QSFP28 optical port supports up to four independent UDP streams for a combined real-time recording rate up to 12,5 GBps.

This allows users to stream data from four of the RFSoC’s A/D channels over 100 gigabit Ethernet and capture them as independent files on the recorder. The recorder captures only the Ethernet payload, providing data files similar to other Talon recorders and compatibility with the SystemFlow signal analysis tools.

All Talon recorders are built on a Microsoft Windows platform and include Pentek’s SystemFlow software, featuring a GUI (graphical user interface), the Signal Viewer and API (application programming interface). The GUI provides intuitive controls for out-of-the-box turnkey operation using point-and-click configuration management.

Configurations are easily stored and recalled for single-click setup. The Signal Viewer provides a virtual oscilloscope and spectrum analyser to monitor signals before, during and after data collection. The C-callable API allows users to integrate the recorder control into larger application systems. Enhancements to the GUI allow more efficient configuration of the recording channels.

The data format used for storage follows the NTFS standard, allowing users to remove drives from the instrument and read the data using standard Windows-based systems, eliminating the need for file format conversion.

Pentek provides a Talon Recording System Simulator for evaluation of the SystemFlow software package. This free trial package is available for download at www.pentek.com/systemflow/systemflow.cfm#SystemFlowSimulator.


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