1. ECE 135 – VCSEL Kings Presentation 5
Pat Cleary
with Bryan Chavez & Kevin Parker
February 17th, 2005

2. Work Summary Ordered Additional VCSELs
Forwarded VCSEL and ROSA Requests
Contacted Adapter/Patch Cord Vendors
Corrected and Tested Tx Board
Initial Tx and Rx Schematics Completed

3. GANTT Chart

4. VCSEL Purchase LC-TOSA 15 Free VCSELs Purchased (In Stock)
Verified Correct Part Number
Lingering TOSA / VCSEL Question

5. Adapter Suppliers Adapter Vendors Difficult to Locate $32.00/unit
Major Fiber Optics, Inc
Adapter Vendors Difficult to Locate
$32.00/unit
Not in Stock (Shipped in One Week)

6. Patch Cord Suppliers MC3 Patch Cords Much Easier to Find $22.50/unit
In Stock (Ready to Be Shipped)

7. Patch Cord Suppliers Simbol Canadian Supplier $13.39/unit (U.S.)
15 In Stock (Ready to Be Shipped)
LC-SC, M-M, 1 Meter, Multi-mode, Simplex

8. Tx Board Correction
Soldered Output Pins in Correct Locations

9. Tx Board Performance
“Best” Eye Diagram
PRBS7 Pattern

10. Troubleshooting Necessary
Tx Board Performance
Eye Diagram with No Power
PRBS7 Pattern
Troubleshooting Necessary

11. Tx Board Troubleshooting
First Input
No Signal

12. Tx Board Troubleshooting
Second Input
Desired Signal Obtained

13. Tx Board Troubleshooting Using Digital Multimeter
Discrepancy at First Input Between Top and Bottom of Board
Conclusion: Bad Solder Joint
Further Troubleshooting/Soldering Needed

14. Initial Tx Schematic

15. Initial Rx Schematic

16. Future Work Order Patch Cords Troubleshoot Test Board
Board 1 Schematic Corrections if Necessary
Design Board 1 Layout