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ATST Instrument Interface Overview
Rob Hubbard Freiburg – October 2008
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Instrument Systems Organization
Polarimetry Analysis and Calibration (GOS) Synchro Bus Instrument Control System Instrument Lab Facility Thermal Control Instrument Lab Facility Instruments VBI ViSP NIRSP VTF Cameras Instrument Systems Überinstrument
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Internal Interfaces Instrument Systems One or the other, not both
Polarimetry Analysis and Calibration (GOS) Synchro Bus Instrument Control System One or the other, not both Instrument Lab Facility Thermal Control We don’t need both an interface between the ICS and the Cameras, and between the instruments and cameras (unless the latter is mechanical). We need to decide how much the ICS is controlling instrument components. Note that there are some “hidden interfaces”. For example the Instrument Control System does communicate with the GOS, but does so via the TCS. Instrument Lab Facility Instruments VBI ViSP NIRSP VTF Cameras Instrument Systems Überinstrument
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External Interfaces Instruments to the Coudé Feed Optics
This describes the beam which is being supplied to the instruments. Instruments to Telescope Mount Assembly The TMA includes the coudé rotator This is primarily a mechanical interface
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Mechanical Interface
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Mechanical Interface (Continued)
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Mechanical Interface (Continued)
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Mechanical Interface (Continued)
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Coudé Thermal Interface
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Other Relevant Specifications
Interconnects and Services Power, coolant, computer networks, control cables (copper and fiber), compressed air, nitrogen (gas and liquid), vacuum Specified in SPEC-0063 The lists of services provided with capacities The routing of services Location of terminus and connection specification Common Services (Software)
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Instrument Interface Overview
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Instrument Control System Interfaces – First Option
Scripts OCS 4.2 Users ICD ICD ICD DHS 4.3 ICS 3.1.4 TCS 4.4 ICD ICD ICD ICD ICD ICD ICD ICD BDT 4.3.1 VBI 3.2 ViSP 3.3 NIRSP 3.4 VTF 3.5 SynchroBus 3.1.2 GOS 3.1.1 ICD ICD ICD ICD ICD Cameras 3.6 ICD ICD SynchroBus Data LAN
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Instrument Control System Interfaces – Option 2
Scripts OCS 4.2 Users ICD ICD ICD DHS 4.3 ICS 3.1.4 TCS 4.4 GOS 3.1.1 ICD ICD ICD ICD ICD ICD ICD ICD ICD BDT 4.3.1 VBI 3.2 ViSP 3.3 NIRSP 3.4 VTF 3.5 Cameras 3.6 SynchroBus 3.1.2 ICD Data LAN ICD SynchroBus ICD
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