B904 Integration

1
B904 Integration

• Pre-Series Manufacture
• Final Production Plans

presented by John Coughlan RAL
2
B904 Integration

• Firstly, apologies if this has already been
  covered in 2 previous meetings and/or is stating
  the obvious
• and approaching this problem from point of view
  of validating FED boards.
• Scope only considering OFF Detector
  Electronics i.e. crates in USC55.
• Strategy to have final Tracker DAQ system
  i.e. final racks destined for USC55 operational
  as test bed in B904
• Schedule and Resources need to identify one
  overall responsible for B904 hardware (CERN
  based). Subdivide tasks for hardware/firmware/soft
  ware. Milestones.
• Arrive at System Test with all final components
  for 2 partitions asap
• So many new components still to be integrated
  APVE, FMM, OptoFEC, OptoFED, LTC, TTCci, TTC
  splitter, CAEN CC, FRL
• Distinguish System Tests vs Acceptance Tests
• FED System Test Test 2? full crates together
  with final Tracker DAQ elements see above (and
  assoc S/W). Synchronisation.
• FED Acceptance Test Follows on from UK
  acceptance tests see next slide
• Individual FEDs will be tested as far as
  possible with Opto inputs/SLINK at RAL. But using
  FED Testers not final system.
• Require system at B904 for CMS to validate FEDs
  (and other components)
• Envisage Full Crate of FEDs (Opto inputs or simu
  test frames) running continuously soaking with
  central Tracker DAQ
• Q. CMS Acceptance / Validation Policy?
• Either refill this crate with random sample of
  FEDs from batches or re test every FED.
• Both are doable, question of logistics. Target
  of 50 boards / month commencing October 2005.
• FEDs go into storage at B904? awaiting
  installation in USC55.

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Acceptance/Validation of FEDs
Testing by Assembly plant operatives
0. Quality Controls
during Assembly
process
AOI, X-ray
Boundary Scan Testing for Digital
1. Custom Tests at
Assembly Plant
BScan, VME crate
2. Tests at RAL
IC
OptoRx, Full crate
3. Tests at CERN
Prevessin 904
DAQ Integration
VME Crate Testing for Analogue
4. Installation at CMS
USC55
Test Flow from Assembly Plant to USC55
500 boards to test over 10 months. Essential to
catch any manufacturing faults early.