Blue Flower

DDL Products

DDL Data Concentrator v.1.4

DDL Data Concentrator


DDL Concentrator collects and transmits data from the front-end electronics to the DDL inks with 48 Mb/s average, useful input bandwidth. Its designed to help the implementation of DDL links in data aquisition systems with lower bandwidth and higher number of input channels at the front-end.One example of such a systems is the single computer data acquisition (DAQ) system of the SHINE (NA61) experiment at CERN.


  • CERN proprietary Detector Data Link (DDL)
  • 2.125 Gb/s full-duplex optical communication
  • Duplex LC optical connector


  • 32 LVDS input channels for proprietary front-end readout links
  • 48 Mb/s maximum sustainable input bandwidth on all channells
  • RJ45 input connectors

DDL Features

  • Instant-on, (automatic link synchronization and management)
  • Supports remote control and firmware upgrades of the Front-end system
  • Bit error rate << 10-12, very high error detection rate, CRC check on data blocks


  • User replaceable Small Form Factor Pluggable (SFP) optical transceivers
  • Technical support for implementation of the compatible front-end readout unit is available
  • Compatible with: RORCv3, RORCv2