Literature Search Documents • THMPL08 & THPHA075 describe SLAC's modular ATCA FPGA based solution (same as this paper) • TUBPA05 describes SNS' optical-link/concentrator model, but with more concentration on integration with EPICS than on the HW • THPHA071 describes CERN's distributed I/O tier based on optical links and cPCI • TUAPL01 describes ESS' efforts, which are similar to SLACs in it's modular approach but based on MictoTCA * THMPL08 describes LCLS 2 Common Platform for High Performance Systems