Mu2e Grounding and Shielding Review: Trigger & DAQ R. Rivera Trigger & DAQ L2 Manager 5/10/16
Introduction and Scope Trigger and Data Acquisition (TDAQ) - Provides necessary components for the collection of digitized data from the Tracker, Calorimeter, CRV, Stopping Target Monitor, and Extinction Monitor. - Delivers data to online and offline processing for analysis. - Is responsible for detector synchronization, control, monitoring, and operator interfaces. - Sub-detectors are responsible for power supplies, front-end electronics, and signal fanout in detector hall. 2 R. Rivera | Grounding and Shielding Review 5/10/16
General Philosophy • Optical isolation from DAQ to detector electronics Detector Front-ends DAQ Room 3 R. Rivera | Grounding and Shielding Review 5/10/16
TDAQ Interfaces • Front-end bidirectional data links (3.125Gbps multi-mode optical) • Timing distribution system (50MHz optical) • Accelerator sync signals (single-mode fiber) • Slow control networks (100/1000 Ethernet network – See Detector Controls & Monitoring talk) • Offline storage and site networking (10G optical network) • 14 x 208VAC/20A circuits for 7 racks in DAQ room (racks on Safety Ground) • Control room operator interfaces (1G Ethernet) 4 R. Rivera | Grounding and Shielding Review 5/10/16
TDAQ Noise Requirements • All TDAQ electronics are in DAQ room • All digital signals • Optical data transmission to/from each rack (8b/10b) • FPGA and CPU processing (SEU) 5 R. Rivera | Grounding and Shielding Review 5/10/16
Accelerator Offline Storage, Data, Timing, Clock/Sync Remote Control Room Slow Control Connections Data Logger Access Switch Management Switch Data Event Building Switch Switch Slow Control (DCS) Host Run Control X 3 X 12 X 20 DAQ Servers Host Encoded Ethernet System Isolation Line CRV ROCs Clock Accelerator, Cryo, Solenoid Control Servers CRV Clock DAQ Room Fanouts Detector Hall Ethernet Switch Isolation Line Ethernet CANbus* Copper Ethernet to Optical CANbus Adapter Cal/Tracker Clock Fanouts * Secondary detector DCS connection … primary connection is virtual channel CRV FEBs Calorimeter ROCs Tracker ROCs on optical data link 5/10/16 R. Rivera | Grounding and Shielding Review 6
Offline Storage, Management Remote Control Room Connections Data Logger Access Switch Management Switch* Data Event Building Switch Switch Slow Control Rack PDUs (DCS) Host Run Control X 3 X 12 X 20 DAQ Servers Host DAQ Room Detector Hall Copper Optical * Connections to network management ports, server IPMI ports, rack PDUs 5/10/16 R. Rivera | Grounding and Shielding Review 7
DAQ Room Ground Power & Ground Connections Detector Ground Data Logger Access Switch Data Management Switch Switch Event Building Switch Rack PDUs (14) Slow Control (DCS) Host 120 AC 208 AC X 3 X 12 X 20 Run Control DAQ Servers Host Isolation Line CRV ROCs Encoded CRV Clock System Tracker & Remote DC Power Fanouts Clock Calorimeter (48 V) DAQ Room HV Detector Hall Ethernet Switch POE Ethernet to CANbus Adapter Cal/Tracker CRV FEBs Calorimeter ROCs Tracker ROCs Clock Fanouts 5/10/16 R. Rivera | Grounding and Shielding Review 8
Summary 1. Does TDAQ address potential noise problems? Will TDAQ achieve desired performance? – Electronics are in DAQ room, optically isolated, and all digital. 2. Is the design technically sound? Any outstanding issues? Concerns? – Optical isolation and commercial electronics are well understood. No known outstanding issues. 3. Significant risks? Mitigation plans? – Environment in DAQ room must be reasonable for commercial electronics. 4. Safety concerns? – Standard racks (208 VAC) 9 R. Rivera | Grounding and Shielding Review 5/10/16
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