Tektronix Option BRR automates compliance measurements for BroadR-Reach 1.2 specifications. Option BRR simplifies test setup and eliminates human error resulting in more rapid compliance testing of BroadR-Reach designs along with reduced human error due to instrument setup. Engineers working on BroadR-Reach can turn to Tektronix for their complete PHY testing solution needs including fixtures.
|CTS Section||Measurements||Test Mode||Limit|
|5.4 Transmitter electrical specifications|
|5.4.1||Transmitter output droop||Test mode 1||45||%|
|5.4.2||Transmitter distortion||Test mode 4||15||mv|
|5.4.3||Transmitter timing jitter - Master||Test mode 2||50||ps|
|5.4.3||Transmitter timing jitter - Slave||TX_TCLK||150||ps|
|5.4.4||Transmitter power spectral density (PSD)||Test mode 5||-||Mask hits|
|5.5.5||Transmit clock frequency||Test mode 2||66.663||66.7||MHz|
|8.0 Link segment characteristics|
|8.2.2||Return loss||Test mode 5||-||Mask hits|
Tektronix option BRR can be launched from the oscilloscope analyze menu.
Option BRR is equipped with latest TekExpress interactive plot module. This feature lets you take a look at the signal after a test is performed. With this new plot module, you can move the cursors and find out the delta on the X and Y axes.
The return loss of the cabling system can also affect interoperability. The standards define the minimum amount of attenuation the reflected signal should have relative to the incident signal. The return loss test measures the impedance across 100 Ω.
Option BRR ingeniously performs the return loss test for 100 Ω impedances as prescribed by the standards, using the same tools such as oscilloscopes and AFG/AWG used for other tests, enabling efficient usage of resources.
The spectrum of an input signal is computed using built-in scope MATH functions. Post processing is done on the spectrum to arrive at the PSD. The computed PSD is then compared with the specification - lower and upper masks to arrive at the final result. Plots are available under plot section and screenshot of the plot is embedded in the final report.
A summary report in .MHT (MHTML) format with Pass/Fail status is automatically generated after tests are complete. The report includes test configuration details, waveform plots, and margin analysis to provide more insight into your design.
The TF-GBE-BTP test fixtures supports many of the ethernet compliance tests, providing convenient signal access, test points for accurate removal of disturbing signals, return loss calibration, and cross-connect circuits to connect to traffic generators and link partners.
For return loss - #2 P6248, P6247 (any model)
For all other measurements - #1 P6247, P6248, P6330, TDP1500, TDP3500, P7339, and P7350 (any model)
2 pair SMA cables
#3 SMA-BNC adapter