APP System Integration & Test Review (SITR) April 8, 2014

1. APP System Integration & Test Review (SITR)April 8, 2014 Agenda & Introductory Material

2. SITR SITR agenda: • Status • Response to assigned CDR RIDs • Departures of delivered hardware and software from the design presented at CDR • Post-CDR updates to this Integration and Test Plan and other critical documents • Waivers, non-conformances, and changes to requirements • Integration Plan • Status: What was delivered (MEL)? Any discrepancies? • ICD compliance • Status of connectors and structures (cables, racks, cooling, grounding…) • Test hardware • Assembly procedures, including first application of power • Disassembly, shipping and reassembly • Anything else to be done prior to the PAI sequence • Open issues and concerns Test Readiness Workshop (Tuesday p.m.) • Work on reconciling procedures with full requirements matrix in I&T Plan

3. APP SITR Hardware Status

4. Response to CDR RIDs • 2 unresolved • 12 resolved but not close • 42 closed

5. Departures from CDR design • Delivered Hardware • ROACH cards are configured on ALMA network, not on private network as proposed. Network switch and NIC were provided in case ALMA prefers to isolate them. • Discrete 1 pps distributer implemented as final adder card (new Xilinx code). • Maser rack design modified to incorporate a pair of standard seismic racks. • Remote access added to maser.

6. Departures from CDR design • Software (summary) • Minor tactical changes only, including updated feature list

7. Post-CDR updates to documentation Updates to existing documents • Integration & Test Plan V2.1 (changes) • Hardware ICDs New Documents or summaries • SITR plan • Assembly procedures • Summary of Engineering Change Requests (deviations from ICD or requirements) • Problem and Failure summary report • Non-conformance records

8. SITR Plan • See document

9. Assembly procedures • Maser power-up sequences (see maser I&T plan). This should be at a level of detail appropriate for high altitude operation. • Pictures sent to support installation of PICs, power supplies, etc. Need to power down, insert cables, plug in, install boards. • Test fixture procedures are same as have been followed during development. • Some of this information will be captured in the maintenance plan. Some captured in PAI procedures. • ESD protocols, etc.

10. Engineering Change Requests since CDR • No requirements changes since revised I&T plan submitted • Need to check on specifications such as set-up time between scans (slower than expected) • “B” version of computing ICDs • Between ALMA Phasing Project And ALMA Computing (ALMA-05.11.00.49-0004-B-ICD) • Between C167 Microprocessor And ROACH2 FPGA (internal ICD, ALMA-05.11.10.49-0005-B-ICD)

11. Problem and failure reports (since CDR) • Minor problem with DTS test fixture • Solution: Operating system with 2 input channels instead of 3 • Shorted pins in two connectors on the PIC. • Solution: • Move all of the signal vias so they fan-out on the outside edge of the pins instead of under the connector • "Tent" all of the remaining vias under the connectors with solder mask to minimize the risk of shorts • The assembler has taken steps to reduce the amount of solder used so it will also reduce the potential for bridging • Cause: Workmanship • 4 of 12 SFP+ cards failed incoming inspection. • Solution: Failed boards replaced • Cause: Unclear. • 1 PPS maser signal failure after remote upgrade • Solution: Reset on network card • Mitigation: Document in maintenance plan • Impact: Low (does not affect operation) • Various software bugs fixed • Unresolved issue in y-y polarization sum (firmware in LTA?). Note that x-x sum works fine.

12. Nonconformances and waivers • No nonconformances • No waivers

13. APP SITR Integration Plan

14. S/W and CSV Flow ✓ 9/20/13 12/25/13 ALMA Release 10.4 Key Haystack Delivered NRAO Scheduled MPIfR ✓ 12/23/13 2/12/14 ALMA Release 10.6 Provisional Other ✓ CSV 0A: Loop closure 1/25/14 Phase IV support 1/15/14 – 1/29/14 ✓ ✓ CSV 0E: Maser test 5/19/14 Not available for validation 3/31/14 4/30/14 ALMA Release 10.8 CSV 0B: Commensal cal. 5/1/14 - 8/5/14 Verification support April 2014 H/W Acc. Rev. 7/21/14 6/13/14 7/11/14 CSV 0D-1C: ALMA Tests 8/5/14 - 8/12/14 ALMA Release 2014.2 Verification support July 1-11, 2014 Not available for validation 9/15/14 10/24/14 CSV 1D-1F: Local VLBI 1/7/15 ALMA Release 2014.4 Verification support September 2014 CSV 2B: Band 6 CSV 4/1/15 12/15/14(?) ALMA Release 2014.6 DiFX & Post-processing

15. I&T Flow Key NRAO LTA Protocols PIC protocols SCC Protocols FPGA personalities Software ALMA ALMA CVS Repository Hardware Haystack GUIs VEX to VOM Device control PIC Control VLBI Observing Mode Post-Observation I&T ALMA ALMA SVN Repository MPIfR Polarization cal Telcal phase solver Integration & Test(NRAO, Team) NRAO NRAO PICAs Maser rack 4/8/14 ✓ Integration (Haystack) NRAO NRAO Charlottesville PAI 1 of 5, +OFL ✓ SITR Haystack Recording system Recorder media Mark 6 Recorders ASIAA ASIAA 2+2 of 5 ✓ 5/15/14 Fiber Multiplexors NAOJ 6/7/14 Component Test (U. Conc., Team/JAO) OSF (Chile) ALMA PAS Integration (Haystack, U. Conc.) ✓ TRR 6/16/14 Haystack Haystack Maser Maser system 7/4/14 Hardware complete System Test (U. Conc., Team/JAO) AOS (Chile) ALMA AcRv TRR 7/21/14 S/W Subsystem Test (NRAO) 8/1/14 Commissioning (U. Conc., Team/JAO) AOS (Chile) ALMA

16. What was delivered? • 2 recorders at OSF currently, one at NRAO. Two more will be shipped from Haystack to OSF when development is complete at Haystack, but may not be in time for PAS. • OFL delivered to NRAO • Maser to be shipped to OSF (est. May 10).

17. ICD Compliance • See ICDs

18. Connectors and structures • Cables, racks, cooling, grounding, etc. • Cables • Either in place or about to ship • Maser? Check with Shep. • Cooling: • Unknown, need to measure PICA FGPA and PowerPC in AcRv sequence. • Maintenance plan for Mark 6 should describe cooling issue with upgraded mother board. • Measure OFL box at AOS? • Maser should be ok, same as APEX. Battery life? • Racks • Maser rack structurally complete, requires grounding plan as part of maser PAI/PAS. • Rails for recorders shipped

19. Test hardware • Need to identify 2-antenna correlator (Bulletproof not available). Two in technical Facility Building (TFSD preferred, TFInt is option). • Otherwise just routine lab equipment (scope, hand-tools).

20. Assembly procedures • (Will walk through lab)

21. Disassembly, shipping, reassembly • Piecemeal approach… • Component-level testing on install following ALMA protocols (regression testing) • Maser shipped under battery power, needs to be delivered within TBD hours. • See maser I&T plan. • See Transportation Plan for crating. Revise transportation plan for maser. • Shock sensors, etc., as needed.

22. Open issues & concerns

23. New documents for TRR (from plan) • Memorandum of Agreement (Shep) • Subsystem specifications / design documentation (TBD) • Compliance matrix (Joe) • Test procedures (TBD) • Assembly procedures (TBD) • Training plan(TBD) • Initial operator and software group training (complete) • Opportunity training during missions • User manuals (end-of-project) • Training briefing (materials only) • Internal ALMA expertise (Alejandro) • Summary of Engineering Change Requests (Mike) • Summary of Problem and Failure Reports (Mike) • Non-conformance records (Bob?)