1. CKM Data Source System CKM Electronics Group July 2003

2. Module DAQ System Event Builder (Switch) DATA Combiner CLK Sys. DATA Combiner PC Farm No-op Reset/Sync. CLK TS10 TS32 Digitizer Serial Links, Optic fiber or LVDS pairs

3. From Simulation (1) 50 GB/spill

4. From Simulation (2)

5. From Simulation (3)

6. From Simulation (4) Number of detector channels Served by 1 of the 400 data links.

7. Multiplexers Needed 1GE 300 channels 30 channels 1GE

8. One Size Fits All --Building Block Similar as the PCI card Bill H. designed for clock system. Possible Configuration: –8 data ports ( RJ-45, 1Gb/s ea.) –2 clock ports (RJ-45, 1Gb/s ea.) –2 GE ports (fiber, 1Gb/s ea.) FPGA RAM

9. Information Traffic Assignment Macro Slices CLK/SYC CLK return CLK/SYC CLK return Macro Slices CLK/SYC CLK return CentenariesSlow Control Slow Monitoring Slow ControlSlow Monitoring 5V, 3.3V Detector Channel Monitoring FPGA RAM Macro Slices

10. Usage Example (DMS) TDC 16 CH TDC 16 CH TDC 16 CH TDC 16 CH TDC 16 CH TDC 16 CH TDC 16 CH TDC 16 CH Data from up to 512 Channels FPGA RAM Safety Factor: S1 > 1 Safety Factor: = 8 * S1 250 MB RAM Safety Factor = 2.8 (3 sec spill)

11. Usage Example (FVS) ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH ADCTDC 8 CH Data from 32 Channels Data from 32 Channels FPGA RAM Safety Factor: = 4 * S1 Safety Factor: S1 > 1 250 MB RAM Safety Factor = 1.8

12. Using an Old PC as Crate Data to DAQ Switch CLK Link to Next Card CLK Link Ethernet 100 Mb/s FPGA RAM FPGA RAM FPGA RAM FPGA RAM

13. Zero Cost PC’s: Old and Current Farms Site 38

14. Cost ItemQty.Ea.Total PCI cards300-400$500$200K PC’s and Ethernet Cards 80-100$0 (Site 38)$0 $200K

15. Summary The Data Source System groups data from front end cards into balanced data streams feeding into DAQ switch. It also distributes timing reference (clock) to the front end cards. It also handles slow control, monitoring functions. (There is no separate slow control system – we hope)

16. FPGA RAM Using an New PC as Crate Data to DAQ Switch CLK Link to Next Card CLK Link Gigabit Ethernet Card Software Driven PCI Data Flow

17. Cost (2) ItemQty.Ea.Total PCI cards400$500$200K PC’s and Ethernet Cards 400$1000$400K $600K

18. Parallel Data to Gigabit Ethernet http://atlas-tdaqtalks.web.cern.ch/ATLAS-TDAQtalks/colmar_papers/B33.pdf GE Port Data Port Altera FLEX 10K50A