![Page 1: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/1.jpg)
The Next Generation of Sub-Millimeter Receiver
Control
The Next Generation of Sub-Millimeter Receiver
Control
Steward Observatory Symposium
Feb 26-27, 2008
Steward Observatory Symposium
Feb 26-27, 2008
Thomas Folkers
David Forbes
Arizona Radio Observatory
![Page 2: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/2.jpg)
Why Remote Receiver Control?Why Remote Receiver Control?
◊ Allows:• Remote Tuning• Remote Diagnosis & Debugging• Consistency in Training and Operation• Faster Frequency Changes and Setup
◊ Allows:• Remote Tuning• Remote Diagnosis & Debugging• Consistency in Training and Operation• Faster Frequency Changes and Setup
![Page 3: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/3.jpg)
Receiver Control Design HistoryReceiver Control Design History
◊ Designed in 1989 by NRAO for the 12 Meter• VxWorks VME Computer ($10,000)
◊ DOS Based Interface• One User Interface Session Supported
• Card Cage Interface to Hardware• Updated to SunOS/X11 Interface in 1992
◊ Design Revision in 2004 for JT System• Embedded Computer ($1,000)
◊ PC104 I/O Cards (2 x $400)
• Linux RH90◊ Unlimited Number on User Interfaces Supported
• Used Same Card Cage I/O Design• GTK User Interface
◊ Designed in 1989 by NRAO for the 12 Meter• VxWorks VME Computer ($10,000)
◊ DOS Based Interface• One User Interface Session Supported
• Card Cage Interface to Hardware• Updated to SunOS/X11 Interface in 1992
◊ Design Revision in 2004 for JT System• Embedded Computer ($1,000)
◊ PC104 I/O Cards (2 x $400)
• Linux RH90◊ Unlimited Number on User Interfaces Supported
• Used Same Card Cage I/O Design• GTK User Interface
![Page 4: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/4.jpg)
NRAO DesignedReceiver ControlNRAO DesignedReceiver Control
![Page 5: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/5.jpg)
NRAO Design Receiver Control VxWorks VME Computer
NRAO Design Receiver Control VxWorks VME Computer
![Page 6: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/6.jpg)
NRAO Design Receiver ControlCard Cage
NRAO Design Receiver ControlCard Cage
![Page 7: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/7.jpg)
NRAO Design Receiver ControlCard Cage Computer Connections
NRAO Design Receiver ControlCard Cage Computer Connections
![Page 8: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/8.jpg)
NRAO Design Receiver ControlCard Cage Hardware Connections
NRAO Design Receiver ControlCard Cage Hardware Connections
![Page 9: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/9.jpg)
“JT” Design Receiver Control
“JT” Design Receiver Control
![Page 10: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/10.jpg)
“JT” Control Design“JT” Control Design
◊ Based on the NRAO Design• Separate Computer and Card Cage
◊ Used Complete Linux Embedded System• PC104 I/O Cards
◊ Active File System• Powering Off Caused Problems
◊ 11 Processes Running in System◊ Required UPS Backup System◊ X11 User Interface can run on any Local
host
◊ Based on the NRAO Design• Separate Computer and Card Cage
◊ Used Complete Linux Embedded System• PC104 I/O Cards
◊ Active File System• Powering Off Caused Problems
◊ 11 Processes Running in System◊ Required UPS Backup System◊ X11 User Interface can run on any Local
host
![Page 11: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/11.jpg)
“JT” Receiver DesignEmbedded Linux Computer
“JT” Receiver DesignEmbedded Linux Computer
![Page 12: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/12.jpg)
“JT” Receiver DesignConnections
“JT” Receiver DesignConnections
![Page 13: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/13.jpg)
“JT” 230 GHz Installation“JT” 230 GHz Installation
![Page 14: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/14.jpg)
Latest Receiver Control DesignLatest Receiver Control Design
![Page 15: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/15.jpg)
New Integrated DesignNew Integrated Design
◊ Custom Embedded Controller Cards◊ No Active File-System◊ Only 2 Processes on Host Computer
• Serial Comm Task• Interface Daemon
◊ Share a Common Global Memory
◊ Standardized Design• Used in the 345 & Future 650 and 950
GHz Systems.• Plans to retrofit 230 GHz “JT” system
◊ Custom Embedded Controller Cards◊ No Active File-System◊ Only 2 Processes on Host Computer
• Serial Comm Task• Interface Daemon
◊ Share a Common Global Memory
◊ Standardized Design• Used in the 345 & Future 650 and 950
GHz Systems.• Plans to retrofit 230 GHz “JT” system
![Page 16: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/16.jpg)
Fully Integrated Card Cage System(345 GHz System Front View)
Fully Integrated Card Cage System(345 GHz System Front View)
![Page 17: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/17.jpg)
Fully Integrated Card Cage System(Block Diagram)
Fully Integrated Card Cage System(Block Diagram)
![Page 18: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/18.jpg)
Fully Integrated Card Cage System(Analog - Digital I/O Card)
Fully Integrated Card Cage System(Analog - Digital I/O Card)
![Page 19: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/19.jpg)
Fully Integrated Card Cage System(Serial Card)
Fully Integrated Card Cage System(Serial Card)
![Page 20: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/20.jpg)
Fully Integrated Card Cage System(Rear View)
Fully Integrated Card Cage System(Rear View)
![Page 21: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/21.jpg)
User Tuning Interface GUIUser Tuning Interface GUI
![Page 22: The Next Generation of Sub-Millimeter Receiver Control](https://reader035.vdocuments.us/reader035/viewer/2022062217/568148a1550346895db5b5af/html5/thumbnails/22.jpg)
For Further Information:For Further Information:
◊ ARO Web Site:• http://aro.as.arizona.edu/
◊ ARO Web Site:• http://aro.as.arizona.edu/