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Chapter 1 Outline
1-42
TDEC (Transmitter and Dispersion Eye Closure)
TDEC is the measured value of the eye opening of the NRZ signal and is
calculated by the following formula.
For details, refer to 95.8.5.2 “TDEC measurement method” of the IEEE
802.3.
TDEC =
(dB)
R: Noise added at the receiver
It is obtained from the measured results indicated by square-dot
histogram in the figure below.
Figure 1.5-26 The position for TDEC measurement
10log
10
OMA
2
1
3.8906R
OMA
Average
optical
power
0
1
0.4 0.6
Summary of Contents for BERTWave Series
Page 26: ...VI...
Page 74: ...Chapter 1 Outline 1 48...
Page 166: ...Chapter 4 Screen Operation 4 24...
Page 210: ...Chapter 6 How to Operate Sampling Scope 6 16 Figure 6 2 2 4 Switching Graph Display...
Page 309: ...6 9 Measuring Waveform 6 115 6 How to Operate Sampling Scope Figure 6 9 5 1 Marker Display...
Page 322: ...Chapter 6 How to Operate Sampling Scope 6 128...
Page 380: ...Chapter 8 Maintenance 8 14 7 Click Reinstall Windows 8 Click Yes...
Page 432: ...Appendix A Specifications A 36...
Page 458: ...Appendix D Performance Test Record Form D 12...
Page 466: ...Index Index 6...