ska phase 1 system requirements specification - The Square ...

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WP2‐005.030.000‐SRS‐002Revision : B3.12 Observational Modes ............................................................................................................ 263.12.1 Top level modes ............................................................................................................ 263.12.2 Data Products ................................................................................................................ 274 OPERATIONAL REQUIREMENTS ....................................................................... 284.1 General .................................................................................................................................. 284.2 Routine operations ................................................................................................................ 284.3 Start‐up and shutdown ......................................................................................................... 294.4 Failure management ............................................................................................................. 314.4.1 General .......................................................................................................................... 314.4.2 Detection and reporting ................................................................................................ 324.4.3 Diagnosis and recovery ................................................................................................. 334.4.4 Lifetime ......................................................................................................................... 344.5 Maintenance ......................................................................................................................... 354.6 Disposal phase ....................................................................................................................... 385 DESIGN CONSTRAINTS .................................................................................. 385.1 Environmental Requirements ............................................................................................... 385.1.1 General .......................................................................................................................... 385.1.2 Site and infrastructure requirements ........................................................................... 395.1.3 Contamination and precipitation .................................................................................. 395.1.4 Climatic requirements ................................................................................................... 405.1.5 Radio Frequency Interference ....................................................................................... 415.1.6 Electro Magnetic Compatibility ..................................................................................... 415.1.7 Self‐generated RFI environment ................................................................................... 435.1.8 Lightning ........................................................................................................................ 435.1.9 Grounding...................................................................................................................... 435.1.10 Corrosion ....................................................................................................................... 445.1.11 Seismicity ....................................................................................................................... 445.1.12 Other Aspects ................................................................................................................ 445.2 Engineering Design Constraints ............................................................................................ 455.2.1 General .......................................................................................................................... 455.2.2 Size and weight ............................................................................................................. 465.2.3 Materials and Processes ................................................................................................ 465.2.4 Marking ......................................................................................................................... 475.2.5 Power and other utilities ............................................................................................... 485.3 Quality Factors Requirements ............................................................................................... 485.3.1 General .......................................................................................................................... 485.3.2 Workmanship ................................................................................................................ 495.3.3 System Safety ................................................................................................................ 495.3.4 Security .......................................................................................................................... 505.3.5 Reliability ....................................................................................................................... 505.3.6 Maintainability .............................................................................................................. 505.3.7 Flexibility and upgradability .......................................................................................... 515.3.8 Accessibility and testability ........................................................................................... 512011‐02‐14 Page 4 of 58
WP2‐005.030.000‐SRS‐002Revision : B5.3.9 Transportability and storage ......................................................................................... 525.3.10 Life ................................................................................................................................. 536 INTERFACE REQUIREMENTS ............................................................................ 536.1 External Interfaces ................................................................................................................ 536.1.1 Power ............................................................................................................................ 536.1.2 Data synchronization..................................................................................................... 546.2 Internal Interfaces ................................................................................................................. 546.2.1 Power ............................................................................................................................ 546.3 Synchronization ..................................................................................................................... 557 SUPPORT REQUIREMENTS ............................................................................. 557.1 Maintenance ......................................................................................................................... 557.2 Logistics ................................................................................................................................. 558 EXTENSIBILITY REQUIREMENTS ....................................................................... 558.1 Extension interfaces .............................................................................................................. 568.2 Extension performance ......................................................................................................... 569 QUALITY ASSURANCE PROVISIONS................................................................... 579.1 System Qualification testing ................................................................................................. 579.2 Test Methods ........................................................................................................................ 57APPENDIX 1. LIST OF DRM TECHNICAL SPECIFICATIONS .............................................. 58LIST OF FIGURESFigure 1: High level SKA functional context diagram .............................................................................. 9Figure 2: 2nd layer of the SKA functional hierarchy ............................................................................. 10LIST OF TABLESTable 1 : Specification classification of DRM science cases .................................................................. 122011‐02‐14 Page 5 of 58
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