Gigabit Ethernet

1
Gigabit Ethernet

• Progress Report
• ECE 4006
• Harsh Sopory
• Kaushik Narayanan
• Nafeez Bin Taher

2
Topics to be discussed

• Design Steps
• Where we stand
• Eye diagram for 10m and 100m cables
• Problems faced so far
• Next Step
• Expected Problems

3
Design Steps

• Construct Evaluation Board
• Remove Transceiver from card
• Place components and Transceiver on Board
• Test Board
• Connect Board to Gigabit Card
• Test setup with another Gigabit Card

4
Where we stand

• Finished steps 1-4
• Tested card with 10m cable and 100m cable
• Used PN7 Signal Pattern at 1.4 Gigabit/s
• No errors obtained
• Used PN23 Signal Pattern at 1.2 Gigabit/s
• Error rate of 2.3 Errors per Megabit

5
Board Test Setup
Power
Ch1 Oscilloscope
Pattern Generator
RX
TX
Ch2 Oscilloscope
Pattern Generator
RX
TX
Fiber Optic Cable
6
Eye diagram for 10m Cable
7
Eye diagram for 100m Cable
8
Problems Faced so Far

• Soldering
• Top and Bottom of board unconnected

9
Next Step

• Connect Ethernet card to Eval board
• Termination networks on card need to be removed
• Insert card into computer and run test program on
  it to ensure it works

10
Setup
11
Expected Problems

• Soldering
• Removal of card elements
• Signal Detect Circuitry