1. Gigabit Ethernet PMD ECE135 Group 2 – Presentation 1 Vinh Nguyen January 9, 2005

2. Gigabit Ethernet: Progress Summary Completed initial Gantt chart Made initial assignment of group responsibilities Reviewed IEEE 802.3z Standard regarding the PMD module Started researching VCSELs Select VCSELs and PDs Optical link budget Test eval board Revise Gantt chart Order parts? Completed Tasks Next Week’s Tasks

3. Group Responsibilities Andrew Meyerson – Administration, ordering, soldering Clifton Kerr – Layout, design, testing Vinh Nguyen – Webpage, report writing Bryan Justice – Optical link budget, design, testing, report writing

4. Gantt Chart

5. IEEE 802.3z PMD Initial Research We will be building a Physical Medium Dependent (PMD) sublayer board PMD should conform to the IEEE 802.3z specifications for type 1000BASE-SX (Short Wavelength Laser)

6. 802.3z Standard PMD block diagram as found in the 802.3z standard

7. 802.3z Cont. Transmit characteristics (from 802.3z standard)

8. 802.3z Cont. Receive characteristics (from 802.3z Standard)

9. 802.3z Cont. The standard also defines a worst case link power budget and penalties This will probably be needed for determining the optical link budget

10. 802.3z Cont. The standard also specifies how to test the PMD to ensure compliance For example, the extinction ratio must be measured with a repeating K28.7 data pattern The standard also specifies test values corresponding to the minimum level of compliance For example, maximum high frequency optical jitter is specified

11. VCSEL Research Started looking at VCSELs Performed 4 Corner Analysis of: – Advanced Digital Optics – Roithner Lasertechnik Briefly examined:

12. Four Corners Analysis for Roithner Lasertechnik TTR-D1

13. Four Corners Analysis for Advanced Digital Optics HFE438x-521

14. Other VCSEL Vendors Lasermate – Link to datasheet for VCSEL with SC connector is dead Optek – Does not appear to have VCSEL model with SC connectors

15. Summary of VCSELs The Roithner Lasertechnik TTR-D1 appears to be the best VCSEL so far in performance terms Potential problems – Delivery time – Currency costs

16. Next Week Research and select parts – Look at more VCSELs – Look at PDs – Call vendors for more information Determine optical link budget Test evaluation board Revise Gantt chart as necessary Order parts?

17. References IEEE Computer Society (2003). IEEE 802.3 Standard. New York: The Institute of Electrical and Electronics Engineers, Inc. Retrieved Thursday, January 20, 2005, from ECE 164.02 website: http://www.ee.duke.edu/~mbrooke/EE164.02/Spring_2004/group_2/index_files/8023.pdf http://www.ee.duke.edu/~mbrooke/EE164.02/Spring_2004/group_2/index_files/8023.pdf ECE164 Group 1 Presentations. (April 26, 2004). ECE164 Group 1 Website. Retrieved January 20, 2005 from http://www.ee.duke.edu/~mbrooke/EE164.02/Spring_2004/group_1/downloads.html http://www.ee.duke.edu/~mbrooke/EE164.02/Spring_2004/group_1/downloads.html ECE164 Group 2 Presentations. (April 17, 2004). ECE164 Group 2 Website. Retrieved January 20, 2005 from http://www.ee.duke.edu/~mbrooke/EE164.02/Spring_2004/group_2/presentations.html