1. Designing a Portable Data Acquisition Unit: Increasing Efficiency and Maximizing Productivity by Use of Standards Dustyn Iwamoto Home Institution: Honolulu Community College CfAO Akamai Internship 2007 Advisor: Lucio Ramos Subaru Telescope, NAOJ

2. Outline Background Special Considerations Main Problem Solution Implementation Questions?

3. Background Project : Design a portable troubleshooting unit that can be used at the summit and base of operations.

4. Special Considerations Elevation and Temperature Almost 14,000 ft Below 10 degrees Celsius (50°F) Agilent Equipment Ratings 10,000 ft 23 Degrees Celsius (73.4°F)

5. Summit Base Benchmark (known good) Compare w/ faulty Normal operation

6. Main Problem Connector –No Standard –Durability –Secure Connection –Ease of use

7. Solution Mil-Spec 3111 –Durable –Bayonet Lock –Variety of pin designs

8. Proposed Standard Mil-Spec 3111 connectors Pros –Durable, easy to use –Increased troubleshooting efficiency –One connector per module as opposed to 5 serial connectors Cons –Expensive to implement –Difficult to wire

9. Implementation

10. Conclusion Built (1 of 2) portable data acquisition units Designed and proposed a standard that has been implemented at Subaru.

11. Acknowledgements Lucio Ramos –Mentor James & Ki’aina –System Adiministrators Jennifer Takaki Subaru Staff Funding provided through the Center for Adaptive Optics, a National Science Foundation Science and Technology Center (STC), AST-987683