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

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

GANTT Chart

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

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)

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

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

Tx Board Correction Soldered Output Pins in Correct Locations

Tx Board Performance “Best” Eye Diagram PRBS7 Pattern

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

Tx Board Troubleshooting First Input No Signal

Tx Board Troubleshooting Second Input Desired Signal Obtained

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

Initial Tx Schematic

Initial Rx Schematic

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